Truffles are potato-shaped underground mushrooms that grow in all kinds of different environments ranging from high-rise forests of pine, oak, linden, fir and wild hazelnut to scrubs, under bushes, and in steppes and deserts. They maintain a symbiotic relationship by attaching to the roots of certain herbaceous plants and have a unique aroma with a sharp odor. Some cultures nickname truffles as bingos or buckthorns. There is also the belief that the mushrooms sprout faster under lightning or thunder thus earning them the nickname “daughters of thunder.”

Symbiotic association between truffles and plants

Nature thrives in a harmony that is based upon assistance and solidarity. Truffles have a special place in this harmony. For example, as plant seeds germinate and begin to grow into roots, the hyphae of truffles wrap around the plant roots, just like a glove does around fingers, and help the emergence of a special structure called “mycorrhiza” which facilitates food exchange between truffles and plants. Approximately 90% of plants coexist with different types of mushrooms, and some plants even need truffles to survive. Unable to photosynthesize, truffles need plants for organic nutrients, and plants need truffles, especially for the intake of more water and minerals from barren and arid soil.

It is estimated that the mushroom hyphae can be as long as 1 km in the forest soil is estimated to be more than 1 km. Truffles help to increase the contact surface of the tree roots with the soil hundreds of times while ingesting the water and minerals from remote areas where plant roots cannot reach. In this way, as soon as a drop of rain falls on the soil, it is relayed to the benefit of plants with hyphae that are invisibly thin and kilometers long. If this partnership did not exist between truffles and plants then the giant trees that we see in forests would not be able to grow tall enough and would possibly remain as bushes due to a lack of water and minerals from the soil.

Truffles and wildlife

A similar relationship exists between truffles and animals in the forest. Since they are generally active at night and cannot benefit from sunlight sufficiently, wild animals meet their vitamin D needs especially from truffles, an important food source. Recent studies show that some wild animal species survive solely on truffles. A large number of mice, squirrels, bears, deer, rabbits, hedgehogs, and bird species in the US eat truffles along with some monkeys, kangaroos, and bird species in Australia.

While the toadstools in the open can spread their billions of spores to the environment, the spores of underground mushrooms remain confined in their tissues. It is thanks to animals that can spot and extract the mushrooms that these spores spread from their tissues into the rest of the environment. Wild animals can locate, dig up, and eat underground truffles due to the strong and attractive aroma of the mushrooms. On the other hand, the spores that are expelled from the animals’ digestive systems lead to the production of fresh hyphae to partner with new plants via germination. This allows underground mushrooms to have the opportunity to sustain their generation and expand their natural habitat.

The conservation of animal species that face extinction also depends on the preservation of the variety of truffle species. From this point of view, truffles in the natural habitats are the sustenance of wild animals. Bediuzzaman Said Nursi (d. 1960), a renown Turkish religious scholar, said: “Our share is in vineyards and gardens. God Almighty allocated our sustenance there. These wild fruits are the sustenance for the wild animals. We should not touch their portion.” It is also known that Bediuzzaman discouraged his students who came across plenty of apple and pear trees on the mountains from eating those fruits. This approach also sums up a guiding insight about sustainable forestry and ecosystem.

Nutritional value and medical benefits

Truffles are richer in protein and minerals than other mushrooms. Their nutritional value consists of 53-76% water, 9% protein, 7% carbohydrates, and 8% minerals. Although they have high nutritional value, the most important feature making truffles superior to other mushrooms is their distinctive aromatic compounds. Due to their unique aroma, truffles attract the attention of many gourmets. It is no surprise that truffles have an exceptional place in exclusive cuisines.

Since ancient times, the medical benefits of truffles have been frequently reported. For example, Ibn Sina (Avicenna) is known to have recommended truffles for healing weakness, nausea, pain, and wounds.

Prophet Muhammad, peace be upon him, said, “Truffle is a sustenance like manna. Its sap is also a cure for the eyes.”

The belief in the nutritional value of truffles is also common in the Christian world. Between 827 and 844, Pope Gregory IV had advised the consumption of truffles to gain strength in battles.

Current studies have found that truffles contain several compounds that are essential for human health. A study published in 2016 is an important step for chronicling the fact that the extract obtained from truffle mushrooms proved to be useful in healing eye infections.

Economic value

The number of commercial-value truffles collected from natural habitats constantly decreases worldwide: it has dropped from 2000 tons in 1884 to 100 tons in 1990. Today, it is around 40 tons. The main factors of this decline are the destruction of oak forests, climate change, environmental pollution, global warming, and uncontrolled picking.

Despite the dramatic decrease in the number of truffles collected from natural habitats, they are sold between $250 and $4,000 per kilo depending on the type and quality.

Growing truffles

Under current conditions, truffles have to be grown by special means. People must grow the types of truffles that they wish to consume.

The first idea for the production of truffles came from a French farmer named Joseph Talon. At the beginning of the 19th century, Talon planted fresh seeds in the oak patches where truffles grew naturally. The existing truffle hyphae in the soil infiltrated the roots of new oak saplings and led to an increase in the production of truffles in the natural habitat. In the following years, Talon created new truffle production areas by planting the saplings he had already produced in other patches. Talon’s method is still used today.

In the 1960s, a period when there was a great decrease in the production of truffles in natural habitats, studies were conducted to find new methods. The methods developed by French and Italian scientists in the 1970s led to a massive success in truffle production. Truffle spores were inoculated at the root of oak saplings and plants were grown in greenhouses to develop only the desired truffle mycorrhizal system in tree roots. Having ensured that mycorrhiza had settled in the roots, the first truffle began to be harvested four or five years after planting the oak saplings in open areas. These methods have allowed truffle production in countries such as Australia, the USA, and New Zealand where truffles are not grown naturally.

Commercial truffle types

It is estimated that there are about 10,000 different types of truffles in the world with different sizes, colors, structures, and aromas. These mushrooms, which are now listed in restaurant menus and stocked on the shelves of luxury food suppliers, are only some of the truffles numbered in thousands.

Some of the commercial types are listed below:

Tuber magnatum: Known as the white truffle of Italy, it grows in the Alba region as attached on the roots of oak, hornbeam, pine and poplar trees. It is different from all species by its peculiarly pungent aroma. It is known as the most expensive food in the world because it grows in a very limited area and cannot be grown as a cultivated mushroom.

Tuber melanosporum: Known as the winter black truffle, it grows during winter by attaching to the roots of oak, hazelnut, and pine trees in Italy, France, Spain, and the Balkans. It has a distinctive aroma and has a wider growth area as compared to the white truffle. It is the most cultivated type of truffle in different continents of the world.

Tuber aestivum: Known as the summer black truffle, it grows by attaching to the roots of oak, nut, and pine trees in a wide geography spanning from Portugal to Azerbaijan, Morocco to Poland, and Sweden to Afghanistan. It bears lower economic value because it is widely grown and has an easily extracted culture and a lower-density aroma.

Terfezia claveryi: It grows in the spring across steppes and deserts by attaching onto the roots of herbaceous plant species belonging to the genus Helianthemum. It has a unique aroma and has a huge market in the Arab countries. Its culture has started to be extracted in recent years.

Oregon truffle: It grows in winter as attached on the roots of fir trees in Oregon, Washington, and Vancouver. It has white and black types. It has an important market in the U.S despite not being as valuable as the black and white species found in Europe. No results have been obtained from cultural studies yet.

Harvest of truffle

Picking truffles is like picking apples from a tree with the difference that truffles are collected from the root of the tree. It is difficult to understand whether the truffle underground has ripened or not. If the extracted truffle is not ripe enough then its economic value immediately suffers. That is why special dogs are bred to locate truffles. Sensitive to the truffle aroma, these dogs lead their owners by simply pointing out to the places where ripe truffles are found. These dogs are motivated by rewards and are encouraged with better rewards for finding higher quality, larger, and more ripe truffles.

References

• Alhussaini S.M., Saadabi A.M., Hashim K., Al-Ghanayem A.A. (2016). Efficacy of the Desert Truffle Terfezia claveryi to Cure Trachoma Disease with Special Emphasis on Its Antibacterial Bioactivity, Trends in Medical Research, doi: 10.3923/tmr.2016.28.342016, Volume: 11, Issue: 1, pp. 28–34.
• Bukhari, 5708; Muslim, 2049; Abu Dawood, Tibb, 12; Ibn Majah, Tibb, 8.
• Hall I.R., Brown G., Zambonelli A. (2008). Taming the Truffle: The History, Lore, and Science of the Ultimate Mushroom, Timber Press.
• Sahiner Necmeddin, Son Sahitler, Istanbul: Nesil Yayinlari, 2011, Volume 1, pp. 113.
• Trappe M, Claridge AW (2010). “The Hidden Life of Truffles”. Scientific American. April 2010: 78–84.
• Wedén C. (2008). Tryffel. Infotain &Infobooks Sweden AB, Stockholm.

Salt is a critical compound for life. Salt that dissolves in water becomes ionized, and plays a crucial role in maintaining the ionic equilibrium of the human body. It allows the sodium-potassium pump to run. Salt is also necessary for plant and animal life, but the amount of salt must be balanced here, too. When this balance is disrupted, land exposed to excessive salt becomes barren. This is a real risk for arable land. In areas where temperatures are high and there is little precipitation, over-irrigation with the intent of boosting productivity might backfire, causing over-salinization of the land. Over-salinization happens when water travelling underground from the earth’s surface encounters a layer of soil with little permeability. As such, the water starts accumulating on this layer. If the irrigation of such land continues, the level of water accumulated underground rises.

When humidity on the surface of the land decreases due to evaporation and plants consuming water, the accumulated underground water begins travelling upwards to the surface through capillary channels in the soil. This is called “capillary movement.” During this phenomenon, salt already in the soil and in the underground water is also transferred to the upper layers of the soil. Yet, this upward movement of salt in geological structures is not a main determinant of soil salinization; what is critical is the amount of salt in the irrigation water. The rate of salt in irrigation water should not exceed 1000 ppm. Even the Euphrates River, which is considered to be high-quality irrigation water, carries approximately one ton of soluble salt to one hectare (10,000 m2 or 2.47 acres) of land every year.

Salt carried by irrigation water does not directly cause over-salinization. There are mediating factors, such as the height of the underground water table, the natural hydrogeological characteristics of the land, over-irrigation, and excessive and erroneous use of fertilizers.

The evaporation of water from the earth’s surface accelerates during the hot and dry summer months. In return, the rate of salt accumulated in soil increases. When land is irrigated every year, the amount of accumulated salt in the upper layers of soil increases. This might cause fertile land to gradually become salty and barren. Such over-salinization does not happen in areas with high precipitation, since salt that exists naturally in soil in such areas is first carried to rivers and underground water sources, and then to lakes and seas.  

Over-salinization is a huge problem. Every year, approximately 10 million hectares of land are becoming barren because of over-salinization. Due to wrong irrigation methods and extremely dry seasons, over-salinization is common in many developed countries where fertile agricultural land is faced with desertification. Such a loss of fertile land means a loss of billions of dollars in these countries’ budgets.

Another reason for over-salinization, which then leads to desertification, is the destruction of forestland for use as agricultural land. With the disappearance of trees, the ecological balance of many environments has been slowly destroyed. This has been followed by improper irrigation, eventually causing over-salinization. As a result, attempts to turn forestland into agricultural land have generated vast but useless fields. Australia is losing 130 million dollars worth of agricultural land every year – and this number keeps increasing.

There are historical records documenting that vast fertile areas turned into deserts due to over-salinization. The region called Mesopotamia, surrounded by Iraq, Eastern Syria, and Southeastern Anatolia, was the cradle for many important civilizations due to its highly fertile land. Unfortunately, this region has largely gone through a mass desertification. Researchers have determined that this desertification was predominantly due to the over-salinization of the soil.

What is the solution?

Traditionally, the most important measure taken against over-salinization has been to establish a drainage system for fields in arid or semiarid climates. This system can be in the form of surface or subsurface drainage through which excess irrigation water, along with the salt in the soil, are removed via canals or pipes.

Different kinds of crops require different amounts of water. Diversifying the kinds of crops planted in the same field can also prevent desertification. Some years, crops that do not need much water should be planted to help reduce the amount of salt in the soil. Using a drip or sprinkler irrigation system can further reduce salinization.

The time of day irrigation is performed also has an effect on the soil. Irrigation should be performed after sunset, especially in hot climates, to minimize the water evaporation that triggers salinization. Another way to reduce evaporation is by planting crops that have thick vegetation during the summer months. They can shield the soil from the hot summer sun.

Increasingly, some farmers are combatting over-salinization by planting salt-tolerant crops. Grain crops – like wheat, corn, or barley – are not salt-tolerant, but plants like sugar beets, cotton, grapes, sunflowers, and alfalfa can help to decrease the amount of salt in the soil.

The final but most important step in reducing over-salinization is educating people in the agricultural sector. They should be informed about all aspects of proper irrigation. This would not only decrease over-salinization, but also maximize productivity.

If we can put all these measures into practice, we will have the chance to avoid the “white death” of much of the Earth’s soil. We have to learn to look at the ecosystem holistically, realizing that all bounties given to us, including water and salt, are only useful if they are consumed in a balanced way. Only then can we leave the world entrusted to us in a greener, more productive and livable condition for future generations.

Organic substances in the soil go through oxidative decomposition depending on factors such as temperature, air, humidity, and pH balance. This is a slow burning (oxidation) event of organic substances. However, oxidative decay is hindered if one of the aforementioned factors is lacking. Then, a slow decay of organic materials in soil called humification takes place.

Humification occurs in an open system in contact with air. For example, early chemical processes start with leaves changing color in autumn. The break down and partial ingestion of leaves by soil organisms follows. During this time, water soluble carbohydrates and proteins leave the leaf tissue. What remains behind are plant structures like cellulose and lignin, which are not broken down yet. Since leaf shapes are not completely deformed, species identification can still be possible at this stage. In the decay step, however, the cellulose and lignin are decomposed by various fungi species and converted to humus.

Humic substances and their properties

Humic substances are intermediate products that occur as the result of organic materials going through a series of chemical reactions. These intermediate products are humic acid, fulvic acid, and humate. Their molecular weights are around 1.000-10.000 gr/mol, 10.000-100.000 gr/mol, and 100.000-10.000.000 gr/mol, respectively. Humic acids contain weak aliphatic (carbon chains) and aromatic (carbon rings) organic acids that are soluble in water when it has a base medium but insoluble under acidic conditions.

Fulvic acids with smaller size molecular structures can reach plant roots, branches, and leaves easily because they are soluble in water under all pH conditions (acidic, neutral, and basic). Thus, trace elements such as iron, zinc, copper, manganese, and boron can be easily transported to plant tissues via fulvic acid.

Humates, however, are insoluble in water. Only the portion of a humate called ulmic acid can dissolve in alcohol.

Major functions have been assigned to humic matter in the nutrient and carbon cycle, as they are inseparable members of the ecosystem. Plants capture significantly more nutrients from humic matter than from clay minerals. Even though they can be depleted from soil by certain agricultural practices in less than 50 years, they can still remain in natural soils, outside human activity, for hundreds or even thousands of years without being degraded. This very long presence in soil enables them to continue their functions longer. According to radiocarbon dating, humates can last approximately 1140 years; and humic acid and fulvic acid last for 1235 and 870 years, respectively, in natural soils.

Positively charged nutritious elements (cations) remain in the soil by binding to negatively charged (anions) in humic matter. Because this bond is weak, useful elements for the plant can easily be exchanged with another cation, becoming free and getting absorbed by the plant. On the other side, cations such as iron, copper, zinc, magnesium, manganese, and calcium, which are hazardous to plants when taken excessively, are held in the soil, bound to humic matter and thus not causing toxicity.

Another significant feature of humic and fulvic acid is their ability to form water bridges. Water bridges facilitate the movement of nutrient ions towards roots via soil solutions.

Aside from agriculture, humic matter, with its aforementioned properties, serve humankind in the industrial, environmental, and biomedical fields.

Industrial and environmental applications

Humic matter is utilized in the staining of leather works, as wood lining paint (natural blue color), as well as water based stripping material for furniture stains. Humic matter is also used in the production of durable, resistant papers in the paper industry, to provide mechanical strength to processed ceramics, and as an additive. It is also applied as a coloring, hardening, and plasticizing agent in plastic fabrication.

Humic and fulvic acids gain significance regarding their ability to form water soluble substances with many metal compounds containing radioactive elements in their structure.

In environmental chemistry, the main role of the humic matter is to remove toxic substances, human sourced organic chemical matter, and other pollutants from water. Calcium humate, obtained from humic matter, can bind and remove nickel, iron, cadmium, and copper in addition to radioactive elements produced at nuclear power plants from water.

Humus based filters are designed to treat sewage water and mud waste. Oils, stains, poisonous phenolic substances, and pesticides are removed from sewage via these materials. In poultry, humic substances are employed to absorb and eliminate the odor of waste gases.

Biomedical applications

Drugs for the treatment of human and animal diseases are developed from humic matter. These can be used for the treatment of viral and bacterial illnesses, in the prevention of blood clots, to cure infections, and to remedy estrogen deficiencies. Clinical studies have shown that common viral diseases of children’s respiratory tracks can be treated with fulvic acid supplements. A lot of medical research has shown that humic matter, especially fulvic acids, have the ability to provide protection against cancer causing viruses. In a study, laboratory mice were given ethanol to trigger gastritis and it was determined that humic acids supplied to mice led to a significant reduction in the harm gastritis caused. The fact that humic acids can form compounds with heavy metals, such as cadmium, enables the excretion of heavy metals from organisms.

In our universe there is no place for waste. Once every particle completes its task, it is returned in a different fashion to be assigned another job. Humification is a good example to this reassignment as a complex recycling event in the soil. It is amazing to observe everything being generated from one thing and everything converted into one thing so easily and in such a crafty, balanced, and organized fashion. In fact, the power and wisdom behind the conversion of the remains of millions of different organisms into a few similar substances to be employed in different tasks are no less amazing.

In the northern hemisphere, where annual average rainfall is around 100 kg per square meter in cold and dry regions, boreal forests, with needle-leaf trees, dominate. The southern hemisphere is dominated by savanna; bushes and meadows occupy millions of hectares.. In these regions, natural fires can be the most important factor of ecosystem changes. When looking at the results of these fires, it sometimes seems they were preprogrammed as to when, where, and how they spread.

Examples of fire dependent ecosystems

The cone of the Jack Pine species (Pinus banksiana), which is widely distributed throughout North American forests, requires absolute forest fire in order to release its seeds. The cone of this species can remain on the trees without releasing seeds for years because of climate and the resin layer covering it. Seeds preserved in the cones wait for the next fire; the cone’s scales open with the heat generated during such a fire. The seeds then start their journey towards a piece of soil that they can grow into. Here the role of fire is very important, not only for the dispersal of seeds but also in preparation of germination. The high humidity and low temperatures in the forests of these regions delays the decomposition of fallen leaves. This layer of dead material over the mineral soil is another hindrance for seeds to meet the soil. When scales of the cones open with the help of forest fire, this thick layer of dead leaves is also removed, having burned down to create fertile new soil.

Another example of fire benefiting plants is the chaparral vegetation of the North American forest. This type of plant cover is composed of short, perennial wooden plants and annual non-woody plants. During the hot, dry weather of summer, this vegetative cover becomes particularly vulnerable to fire. A dark black cover composed of unburned parts, frames, and ashes of the plants is left behind. This sight, which is saddening at first, actually hides various beauties in it, and these beauties only emerge after a series of events.

Golden eardrops (Dicentra chrysantha), which is a member of the perennial Chaparral family, is deeply affected by fire. The seed of this plant requires a fire event in the germination season and should be exposed to smoke for at least 10 minutes.

The positive effects of forest fires can also be seen in the healthy survival of an ecosystem. Due to its thick bark, the widely distributed Ponderosa pine (Pinus ponderosa), of North America, is minimally affected by the low, medium level cover fires that happen every five to twenty years. The weak and unhealthy individuals in this dense forest get burned as a result of natural forest fires, leaving healthy, thick barked trees. This way, possible epidemics of harmful forest organisms, via these unhealthy trees, is prevented. In the meantime, due to periodic fires, dead cover, or fallen and dead trees are removed, thus preventing bigger fires.

In the eastern Mediterranean, brutia pine, yellow pine, black pine, aleppo pine, and stone pine can are widely distributed. Among these, brutia pine is spread across a wide area, especially in most fire sensitive regions. It is created with a thicker bark around the trunk compared to other pines. This species can be minimally impacted from low and medium level cover fires. On the other hand, seeds in the cones of brutia pine are thrown far away by the heat of the fire, reaching fertile germinating grounds, thus helping to spread the forest.

References

• Fuller, M. 1991. Forest Fires: An Introduction to Wildland Fire Behavior, Management, Firefighting, and Prevention, SD421.F84, Wiley & Sons, Inc., NY, pp. 238.
• Keeley, J. E. 2007. “Chaparral and Fire,” Fremontia, Volume 35:4, pp. 16-21.
• Bond, W. J., Wilgen, B.W. 1996. Fire and Plants, SE18HN, UK, Chapman & Hall, UK, pp. 259.

According to the British writer Raymond Williams, culture is one of the two or three most complicated words in English. It has many definitions but here is the crux to remember: Culture is the way of life of a given society. Our culture is what we are as a group; it is learnt from birth and is passed down from one generation to another.¹

Culture is to the person as water is to the fish. It influences the way we perceive the world, tells us how to behave, and tells scholars how to think about the causes of behavior. It even shapes the moods and opinions of public about what to eat, what to wear, what to think is right or wrong, and much more. However, people are generally unaware of their cultural conditioning and do not realize that the way they recognize the world is not necessarily same as the way other groups do.²

An array of traditions, norms and values observed in a society raise its cultural character which distinguish societies from one another. These cultural variations influence the course of communications, may cause (the escalation of) conflict when it leads to miscommunication or misinterpretation, and can be problematic in cross-cultural encounters when one acts as if differences did not exist.³ The deeper one interacts with a different cultural group, the more he/she understands its the norms and priorities. This awareness of the ways cultures operate in communication and conflict will yield to the ability to respond effectively to these differences and prevent misunderstandings in intercultural settings.

One can list many dimensions or their sublevels that cause variations both between and within cultures. Below, we will discuss some major aspects along which cultures vary. Although it seems that there are no direct linkages between each topic, it is interesting to see how they actually relate to one another.

Senses of Self:

From the outside, a tree grown in California would probably look just like a tree grown in Japan. However, the growth of each tree is largely dependent on the soil that roots of the trees have to interact with in order to grow. The strength of the roots is also dependent on the environment the tree is exposed to, from sunshine to thunderstorms. Imagine the values of a particular culture represented as the roots of a tree. These roots (values) are the source of strength needed by the tree to survive in the surrounding environment (society). Of course, we don’t really see the roots, but we are constantly exposed to the tree nevertheless. The type of fertilizer and water fed to the tree contributes significantly to the growth of it. In addition, you can not transplant a tree into other soil unless you prepare the roots for the new soil.

The roots of each tree may have a different form, much like the cultures they represent. The Japanese roots are twisted together because they may have rockier soil and need the combined strength of the roots to support the tree during rough weather. The American roots, however, are individual, separate, straight, and deep, responding to their soil condition. ⁴

Societies that value individual uniqueness and self-determination are referred to as individualistic cultures in which people make up their own mind and show initiative independently. In this way of life, people deem themselves as the masters of their lives which they think they can control by themselves. On the contrary, cultures in which people identify themselves with groups are categorized as collectivistic societies. These societies consider many external parameters outside one’s control that affect the course of their lives, and there is more emphasis on the role of destiny in daily life. Many of the Asian cultures are collectivist, while Anglo cultures tend to be individualist.

A “self-determining” individual tries to preserve his/her image and interests by taking a competitive stance in interpersonal encounters. However, for those in collectivistic cultures, direct confrontation may reflect poorly on the group or disturb overall harmony; then open criticisms of others are generally avoided. When there is conflict, a third party is utilized for resolution. Since no direct confrontation takes place, potential damage to the relationships is minimized.

The value placed on individual freedom in individualist societies leads to the idea that everybody is equal regardless of age, social status, or authority, which calls for a tendency to be informal when addressing one another. In the US, for instance, superiors and subordinates often interact socially as equals, and an outsider typically cannot tell them apart. However, collectivistic societies place more value on seniority and hierarchy and, therefore, are more formal. They also put more emphasis on the role of power/status: Is the boss, a) always right because he is the boss, or b) only when he gets it right?

Someone devoted to freewill and someone with a more philosophical orientation may face miscommunication. The first would expect immediate action and responsibility and, failing to see it, may conclude that the latter is lagging, hindering, or dishonest. The second person would expect respect for the natural order of things and, failing to see it, may conclude that the former is pushy or impolite.

Communication styles:

Japanese can find Westerners to be offensively blunt. Westerners can find Japanese to be secretive, devious and bafflingly unforthcoming with information. French can feel that Germans insult their intelligence by explaining the obvious, while Germans can feel that French managers provide no direction. ⁵

In some cultures, people presume ample commonality of understanding and attitude in their counterparts hence they feel that it is unnecessary to be “over-explicit”; information is communicated in indirect ways embedded in the existing context or internalized in the person per se. Whereas in other cultures, information is part of, and conveyed through, the verbal content of the communication; things are made explicit, and there is considerable dependence on what is actually said. The first types of cultures are known as high-context, and the latter low-context respectively. Due to the significance of social information networks, collectivistic cultures tend to be high context.

Since the focus is the message itself rather than the context, low context cultures are open to communication errors when they assume more shared knowledge than there actually is. This direct approach may help to avoid communication errors when used properly (in a good timing and context). However, communicators may fail to “feel the emotional state” of the other party, or may hurt feelings while trying to be “direct.”

Though, low context cultures expect thorough explanations, high context cultures take them as redundant discussions on details, and even somewhat hesitate to make mistakes with too much talk. These cultures are more cautious about the potential implications of the message delivered. Silence and other indirect/non-confrontational methods are frequently applied and patience is promoted for the sake of overall harmony. On one side, silence is viewed as a communication breakdown, whereas on the other it is utilized as an actual communication component at times.

Perception of time:

I was once told that one of the South American groups in the U.S. used to send to different invitations for the same occasion. One was truly showing the ceremony time, yet the other was for an hour before the actual kickoff. The first was for the American friends and the latter one was for their own community to offset possible delays.

Time is beyond what a clock reads: “There are two blessings in which most people are in great loss: Good health and free time.” ⁶ In addition to being a major blessing, it is one of the most central differences that separate cultures and cultural ways of doing things.

In the West, time has a present focus moving toward the future at an acknowledged swiftness. Events are explained via specific causes, and there is an appropriate time and place for everything. This notion of time is actually a product of the Industrial Revolution which requires certain tasks to be achieved at a predetermined hour. Concentration is on one event at a time, schedules and deadlines take priority, and interruptions are not very welcome, which ultimately seals people off from one another, as limited time allows some people in and leaves some others out.

In Western cultures, time is considered as a limited reserve which is continually being used up. It’s like having a bathtub full of water that is running down the drain, and can never be replaced. It has to be used as it runs down the drain or it is wasted.⁵ Time is perceived quantitatively; it is measured and almost tangible. Many expressions such as Boucicault’s following words highlight its importance and urge its awareness in these societies: “Men talk of killing time, while time quietly kills them.” “Time is money” is a household expression, and people often talk about “saving,” “spending,” “wasting,” “finding,” or “losing” time. Time orders life and priorities: “I don’t have time to do that.” Since time is prioritized, so is accomplishing a task as quickly as possible; thus taking risks are expected to bring the future closer.

As time is limited, punctuality becomes a desirable quality and wasting someone’s time is regarded as an insult. Lest communication takes more time, individual-oriented cultures promote direct and competitive communication, whereas group-oriented cultures prefer indirect and harmonious approaches to communicate and avoid direct confrontation. Individualistic cultures may view this communication avoidance as passive, unwilling, or even ignorant. On the other hand, collectivistic cultures may view the direct approach to communication as being rude.

In the East, time is circular, spiral, even repetitive, and has unlimited continuity; in old agricultural societies which depend on the months/seasons of the year, it renews itself annually (traditional Chinese calendar has a period of 12 years). Other unrelated events or mystical reasons may be used to explain a given event, “as time is viewed an unfolding of stories already written, or a play in which much of the set is invisible.” ³ This idea of time also goes along with fate and destiny, and is connected to other people as well as periods of history. People may handle many things at once in this approach. A manager’s office in such a culture typically has an open door, a ringing phone and a meeting all going on at the same time. Within all these intermingling events, punctuality is nice, but not essential.

In Eastern cultures, time is more plentiful and people tend to be more patient. It is quite acceptable to make people wait all day, and then tell them to come back later. Time-abundant cultures tend to rely on trust to do business, whereas time-limited cultures don’t have time to develop trust and have other mechanisms to substitute trust (such as judiciary mechanisms).⁵ This time pressure may also account for segmented relationships in Anglo cultures, while time-abundant societies tend to establish lifetime relationships. Furthermore, societies that have a more flexible sense of time are more comfortable with uncertainties and accommodate changes in verbal plans, whereas time-limited cultures prefer everything to be expressed in written details and abide by these binding plans.

In one viewpoint, past and future are both present in this stretching time that loops back and forth. In the other, time starts with the very current instant and extends into the future. In a negotiation setting of parties with these two different notions of time, one of the parties may take time to provide extensive information regarding their stories and their relationships to the issue; weaving themes, feelings, ideas, and experiences together as they remember the past and project the future. When it is the other party’s chance to speak, they may promptly project flow charts showing processes for decision-making and speak about their intentions for entering the negotiation process right away. Neither side would feel satisfied with this meeting, but everyone would feel that they were not “on the same page.” ³

Therefore, as people from different cultural backgrounds work together, they should ask questions about their values and needs, and how these may affect their progress. Both cultures would be comfortable with meeting face to face in a mediation setting to frankly discuss differences of any sort.

Figure 1, serves as a summary of the dimensions we have mentioned so far. While the generalizations listed do not apply uniformly to all cultures, they will help convey a pattern:

Figure 1. Comparison of various cultural dimensions

Most North European and North American cultures fall into Group A.

Most Latin American, Asian, South European, and some African cultures overall fall into Group B.

Each of the variables discussed here shows only a glimpse of various dimensions across cultures, which do not apply to all individuals within a culture. One should not generalize by ignoring individual differences; e.g., “he is like that because he is Asian – all Asians are nonverbal.” An individual’s behavior may well vary depending on the situation, individual personality, mood, etc. as well. Cultural differences discussed here are general guidelines and there will always be exceptions. Anyone is unique in a sense and must be approached accordingly. It is important to remember this uniqueness at times of negotiations or unease, and not rush to make decisions before clearly understanding the situation. Keep in mind that different cultures see the world through diverse filtering lenses; there may not be a disagreement but just a different interpretation of what is going on.

As a result of globalization, the world is becoming smaller and people of various cultures are able to communicate freely. Ideas and perspectives can span across cultures through different forms of media like the television, the newspapers and the Internet; thus, cultures are blending more and more every day, which makes dialogue and mutual understanding essential. Only by learning about, respecting, and celebrating these differences, we can build mutuality and co-operative relationships, rather than breeding enmities.

Osman Senkaya has a Master’s Degree in Nonprofit Leadership.

Notes

¹ http://www.celt.iastate.edu/international/culture-extras/CultureResources.pdf

² Kim, Min-Sun. 2002. Non-Western Perspectives on Human Communication: Implications for Theory and Practice. Thousand Oaks, Cal.: Sage Publications.

³ LeBaron, Michelle. “Cross-Cultural Communication.” http://www.beyondintractability.org/essay/cross-cultural_communication

⁴ Elashmawi, Farid, and Philip R. Harris. 1993. Multicultural Management: New Skills for Global Success. 3rd ed.: Gulf Publishing Company.

⁵ “Differences in Cultures.” http://www.analytictech.com/mb021/cultural.htm

⁶ Sahih Bukhari: Vol. 8, Book 76, Number 421.

⁷ Foster, Dean A. 1992. Bargaining Across Borders: How to negotiate business successfully anywhere in the world: McGraw-Hill.

How generous of us. How condescending, actually! It implies that I can bear up under the difference which is exemplified in the other: I won’t criticize you openly or make comments, but deep down, I know you to be “different” and myself to be virtuous and probably superior. I may catch myself, when speaking of someone I actually do not like, saying politely: “Well, she’s different.” With that comment, I am off the hook. I refrain from telling you I reject this person. But “different” here may support a polite tolerance, yet it harbors an inner rejection.

So can we count tolerance a virtue? Perhaps developing tolerance is a stepping stone to something deeper? It might be the beginning of wisdom and exemplify a necessary patience with what feels painful, uncomfortable, unfamiliar, possibly frightening, in fact “foreign” to us. “Unfamiliar,” literally means: Not of my family. I am ill at ease with this because I do not know it. It is not part of my family, my tribe, my beliefs, my language, my religion, my race. In the spirit of tolerance, I might begin to open myself to tasting, hearing, learning something about that which is not “ours.” It is a beginning, but it still holds fast to the comfort of what it knows and only tolerates what it cannot fully accept.

Still, we have all had the expansive experience of traveling outside our zones of comfort and making a new relationship. We have launched a friendship with someone who seems unlike us.

An obviously poor man has taken charge of the garden plot next to mine in our neighborhood community garden. Perhaps he is homeless? He rattles up to the garden on a dilapidated bicycle. His clothes are worn and he has a scruffy look. His nails are dirty and that might be because he has been working his plot. I sense a certain unease in myself as we scratch the soil in our plots. Part of me fears him. That might be because I feel guilty about the growing number of homeless who make camps under the overpasses in my neighborhood. I can let my mind race with objections: They might bring disease. They certainly clutter the surroundings with litter. What if, in their need, they take what they want from yards and sheds? And the police told us recently they found a cache of machetes, sticks and knives in the park behind us. Oh, I can build dungeons in the sky as fast as anyone.

But to be honest, deep down, I would dread being homeless myself and in this economy… my mind races. How much of this is all our responsibility? Other members of the community garden, I notice, walk well out of his way. Sometimes they whisper to one another making comments about their discomfort.

But this is, after all, a Community garden! What does that really mean. If you sign up and pay the nominal fee to tend a plot and use the garden tools, this man has a right to be here. So the gardeners put up a front of tolerance. “We shall see. We’ll give him a chance.”

Tolerance invites us to stand before the unfamiliar and allow-but it still has no relationship to the ability to be empathic. Empathy is a vulnerable frame of being. It is to feel with what is “other” or different. Tolerance does not yet stand in the shoes of the other, knowing exactly what it feels like to be that person, living into a sense of that person’s culture, situation, history, biology, with those talents, bearing those wounds or offering those gifts.

Empathy would be the greater quality to embrace and cultivate in ourselves if we want to conduct real dialogue. Empathy is a quality that comes with maturity, practice, humility, a vulnerable openness and, of course, prayer. There is nothing guarded, “tolerant” or superior about it.

“Hey!” Two of us greet the man one morning as we hoe our plants. What’s your name? What have you just planted there? I make a point of walking over there and taking responsibility for my own feelings, I try to make contact with the fellow devoid of my prejudices. I am not an extroverted, chatty person to begin with, so it takes a concerted effort on my part to walk over there, discuss our gardens, and share our experiences.

Dempsey is his name. He does indeed live at the homeless shelter downtown and bikes up hill here to work his plot. He has lost the place he once lived. There is a story hiding in him. Turns out he knows quite a bit about the soil and gardening. He introduces me to his beloved collards. I show him my chard and spinach. Eventually we share some of our produce and though I do not take a shine to his collards, no matter how I try, I feel somehow honored by his generosity.

He has a plan. Even a vision. If he can grow enough produce, he will bring it to the kitchens at his shelter. As a kid, he had gardens which he and his mom tended. When everything in a row turns ripe and ready at once, it is quite an armful and he would like to make a contribution to his shelter. He has more plans. There is some land at the back of the shelter that, if he can convince them, he would like to turn into gardens that the homeless can help cultivate. Right now it is just a dumping ground for old bottles and litter.

“Of course, we’d need to contain the kitchen waste for compost first to get some soil. Gardening is more about making good soil than about growing plants!”

Before long, I am hearing amazing things from Dempsey. What if I had avoided him in my fear, guilt, and prejudice?

I think about my feelings against his reality. When we were young and growing up, we all made choices: We chose this over that, we chose right over wrong. We chose right over left and light over dark. We learned not to talk to strangers or to walk in certain neighborhoods. All the world is split in halves and with our choices we made judgments to match. We learned to define ourselves in a certain way, convinced that we have chosen the better part and have left “the other,” the misguided, the sinful, the messy, and unenlightened behind. This is how we formed our identity. With this we were approved of by our families and accepted by our tribe. It was, perhaps, a necessary developmental process.

In time, we may become so comfortable in this identity that it takes wisdom and maturity to discover that the world isn’t so black and white as we would like to define it. Our “black and white mentality” is often acted out literally. Here in America, we have suffered and visited great suffering on people of color deeming white to be more worthy than black. Getting stuck at this stage of development has literally given advantage, education and wealth to whites and this on the backs of those we first imported as slaves to our country and then continued to enslave in our intolerance, injustice and rejection.

Everywhere in the world, we have seen these simplistic conflicts bloom and fester causing injustice, war, and dreadful human misery. Tolerance, then, might be the first step to healing an unjust society but then, it has to develop further, into a true virtue.

Empathy-that true virtue-allows us to viscerally feel with the other and learn a third way which stands over and above the simplicity of a merely “black and white” mentality. Perhaps fundamental rights and wrongs may well be necessary to growing up and learning to become someone.

But fundamentalism is essentially an unripe process in becoming whole, holy, and healthy. It is a spiritual and psychological immaturity. Becoming whole, empathic with “the other” and more than merely “tolerant” of the other requires that we make friends with the deepest part of our own inner selves first. The dark aspects of our own unconscious, which lie under our conscious choices and awareness, are alive and well and sometimes pop out in actions, prejudices, paranoia, and selfish behaviors that actually shock us, surprising ourselves! Where did THAT come from? The impromptu snub? That slip-of-the-tongue? Getting to know what you’d rather repress in yourself takes that washing, even symbolic washing, which takes off the accretions of only “looking good.” To reach into our depth we ask for the graces of God and the courage to know ourselves.

Dempsey proves to be a gifted gardener. Unlike many of us city-slickers who find the idea of gardening a nice, romantic concept, Dempsey knows how to lean into his work and stick with it. He puts a hand to our compost pile and gives me information on the chemistry of compost. He LOVES the compost. And I begin to be enamored with the beauty of this transforming pile of brush and leaves as they become mulch and then good, black earth. It takes time. It takes patience. The vegetable scraps and brush, the kitchen scraps that we reject and find, in fact, revolting as they mold and decompose, become, in time, something so rich and beautiful that I hold a palm full in my hand and run it through my fingers. Dempsey laughs at me. He knows that I have come around. I encourage him to share his knowledge at our garden meetings. Dempsey becomes a valuable member of the garden. And he becomes a friend.

Like the compost, I dig deep into my own unconscious and all that I have deemed objectionable, I take into my awareness. I get to know myself a little more. I get to appreciate what I otherwise throw out and bury out of sight-out of my consciousness-and I find it necessary as the very “ground of my being.” It is a spiritual, a holy exercise. Also the parts of society that I might only tolerate, I take into my awareness and with prayer and God’s grace, I watch the rejected become a valuable source and a piece of God’s holy plan and puzzle.

Richard Rohr, OFM put it this way:

With prayer we change sides from the inside-from a power position to the position of vulnerability and solidarity, which gradually changes everything. Because now we are allowing ourselves to change and grow!
Once we are freed from our paranoia, from the narcissism that thinks we are the center of the world, or from our belief that thinks our rights and dignity have to be defended before other people’s rights and dignity, only then can we finally live and act with any justice or truth. Once these blockages are taken away from us-and that is what prayer does-then we just have to be offered a few guiding statements on social justice or other thorny issues-and we tend to get it for ourselves. We start being drawn by love…

For it is common practice in the human condition to take everything we fear, hate, deny about ourselves and “throw it in the waste bin.” We have, unwittingly, put “the other” in that same place of rejection and waste.

On the other hand, we also project everything we admire onto “the hero” as well. The adolescent makes heroes of the athlete, the rock star, the film star, the super model and decorates her bedroom with their posters. Meanwhile, the adults lean on their gurus, their preachers, their wise men, their favorite politicians and hope to vote in their hero as president and savior-of-the-nation. Our heroes, just like our shadow figures about whom we are passionate, are really aspects of ourselves which we are invited to come to know. These are abilities, virtues, talents, beauties, braveries, and wisdoms that we have not yet met in our own deepest selves but have “found” by projecting them on our heroes. What national leader can be the savior that delivers us from debt, from our enemies, from hunger? Over and over and at every election, we project on “the man who would be king,” and within months, because he is merely human, the populace has become disenchanted if not duped!

Samuel, in Hebrew Scripture, warns of turning away from God in favor of a king (1 Samuel 8). Israel wanted a leader like the other nations. But Samuel issues a final warning (1 Samuel 12:14) “If God’s people will remain faithful to God’s Commandments” and keep God as their ruler.

When our loves and our hates are visceral and passionate, we must take these deep emotions as invitations to examine our SELVES first. By truly “knowing ourselves” deeply, we are able to develop empathy-knowing “the other.” Then we learn to accept the dark and light aspect of our deepest self. We learn to embrace everyone. Our tolerance becomes empathy, even love! Rumi’s teaching often showed that love and empathy is the very path to spiritual growth and insight. Broadly tolerant of every person and all faiths he says:

Whoever you may be, come
Even though you may be
An infidel, a pagan, or a fire-worshipper, come
Our brotherhood is not one of despair
Even though you have broken
Your vows of repentance a hundred times, come.

Life is certain to dish up for us, family members, neighbors, people, situations, religions, countries-myriad experiences that are really invitations to rattle us out of our cozy dualistic and judgmental lives. May we grow surely and bravely from being merely tolerant into fully human beings who are steeped in empathy. Every dualist split that rends us apart personally and tears us one from the other would be healed. The same God reigns over and above us all. The same God guides us. The same God loves us all. The same God is the very ground of our being. Tolerance is only a start on the path to love and empathy.

Gertrud Mueller Nelson is an author, artist and retired teacher. She has illustrated and written nine books. She lives in California.

Day and night I burn gripped by agony, You are the One I need

I find no great joy in being alive; if I cease to exist, I would not grieve,

The only solace I have is your love; You are the One I need

Your love slays lovers; makes them dive into the sea of love

Fills them with the image of God; You are the One I need

Let me drink the wine of love; like Majnun, live in the mountain of hardship,

Day and night, You are my sole concern; You are the one I need

The Sufis seek for friendly conversation; the Akhis look for the hereafter

Majnuns (lovers) seek for their Leylas (beloved); You are the One I need

Even if, at the end, they make me die; And scatter my ashes up to the sky,

My soil would break into this outcry; You are the one I need.

Yunus Emre, the mystic, is my name; Each passing day rouses my flame,

What I desire in both worlds is the same; You are the one I need.

Yunus Emre is a famous sufi poet who lived in Asia Minor in the thirteenth century.

Looks ecstatic with a Godly gown,

With spangled Paradise all around,

Proclaims Who holds the crown.

In the broad wondrous sky on high

Like an imperial azure eye,

Evoking awe beyond confusion,

Our Lord displays His heavenly dye.

The moon twitters with solemn impulsion

Amidst the shooting stars and the sun,

Ears and eyes of enthusiasm, deeply enjoys

How its Glorious Lord has revealed His art.

Power and dominion under His Hand,

The soil, the air, the water, surrender.

Every being adores the same Lord

While every entity reflects His splendor.

Victor H. Earnest

The Aral crisis is the best example of an ecological problem with serious social and economic consequences, directly or indirectly connected with all the states of Central Asia. The critical situation caused by the Aral Sea drying off was the result of agrarian economy tendency on the basis of irrigated agriculture development and volume growth of irrevocable water consumption for irrigation.

The Aral Sea was once the fourth biggest inland sea of the world, located between Kazakhstan and Uzbekistan (formerly in the Soviet Union). It moderated the inland climate for many centuries through water evaporation, which gave life to the surrounding deserts of Central Asia. The Aral Sea also was inhabited by more than one hundred fish species and supported productive fishing industries. Some fifty years ago the Aral Sea was surrounded by prosperous fishing towns like Moynaq.

The water area of Aral has periodically expanded and contracted in the course of history. These changes have affected the climate and the state of the region and led to important migrations in history. In spite of the massive glacier melting in the North and South Pole because of global warming, which would be expected to increase the level of inland waters, the Aral is rapidly losing its water. Because of poor environmental planning and the negligence of humans, the Aral Sea is now dying and according to the experts it will disappear in less than ten years.

The Aral Sea started to dry off in the early twentieth century. In 1918 Lenin decided that the only two water supplies of the Aral, the River Amu and the River Syr should be diverted for irrigation of the desert to increase land for agriculture. The idea was to boost agriculture, and this worked for a short period of time. The Soviets or Uzbekistan became the world’s largest exporter of cotton, which they referred to as white gold. The area of irrigated lands increased from 3 million hectares to 8 million. The population of the region increased from 7 million (1940) to 50 million (2000). At the initial stage of this project which seemed a brilliant idea at first sight, the irrigated land built up the economy of the Central Asian Soviet States and produced millions of jobs. Although, the result of the project was brief joy and success, the price of poor planning turned out to be by far too high.

First of all, the government had decided to grow cotton in a desert terrain. Cotton farming requires lots of water, which would not occur naturally in the desert. They also increased the production of other crops like water melons, cereal, and rice. Diverting the rivers cut the supply to the Aral Sea, and due to evaporation, it began to shrink. The first irrigation canals were initiated in the 1930s; however, these canals were poorly built, extremely inefficient, and wasted more than 50% of the water. Even today in Uzbekistan only 12% of canals are leakproof. The level of the sea has gone down constantly ever since; in the 1960s it became obvious that the sea level was falling; there was an average 20cm fall per year until the 1970s, when the fall became 50–60cm a year, and now it is 80–90cm a year. Especially in the period of 1960–1980 the diversion of water doubled, which reflected on cotton cropping as much as on the decreasing sea level.

The loss of water exposed the salty sea bed in the Southern Aral. Dust storms spread salty soil into the irrigated areas. Farmers tried to fight against salt contamination by flushing the soil with large volumes of water, which makes its way back to the sea. In addition, farmers used high levels of pesticides and fertilizers to increase the efficiency of crop production. However, these chemicals leave traces of nitrogen and other salts in high amounts in the soil. By flushing the soil with water to reduce salt levels, pesticides and fertilizers were also washed out and further polluted the sea.

Even more unsettling is that the Soviet government knew that they would lose the Aral Sea; in 1968 an expert said “it is obvious to everyone that the evaporation of the Aral Sea is inevitable”; and they also knew that fishing would be hit but the sad fact is that the government saw the Aral as an “error of nature.” The consequences of cutting the Aral’s water supplies and the irrigation of the desert were the beginnings of serious ecological and social problems in the 1960s. The sea was lost to fishing and transportation. This business of “killing nature” has not only affected the people living in the immediate vicinity of the sea. They did lose their jobs and they had to restart their lives, but the whole environment was affected too. Loss of water caused an increase in the overall salinity of the sea. Besides that, the bed of the sea, which held toxic chemicals and pesticides, was now revealed. The local drinking water is hence contaminated. The Aral was once the habitat of more than 120 unique species; now it has only thirty-eight. Being a heat reservoir, it had a cooling effect on the environment, but now the temperature can go above 120 degrees, winters still being harsh. Poisonous dust and salt storms take their toll. Infant mortality, tuberculosis, cancer and lung disease are thirty times higher than normal levels because the water is contaminated by fertilizers, pesticides and salt.

Currently the sea has lost more than 60% of its surface area and more than 80% of its volume; as of 2004 the salinity is 45g/l, normal value being 10g/l. While shrinking, it has split into two lakes, the North and South Aral Seas, now 95 miles away from Moynaq, leaving vast areas of salty desert behind. A BBC reporter said, “What appears to be snow on the seabed is really salt. The winds blow this as far as the Himalayas. The children of Moynaq have made a playground out of the wrecks of ships which might have provided food and a future for them.” The drying out of the Aral may lead to even more serious consequences in future if measures are not taken soon. First, increased temperatures may lead to the degradation of mountain glaciers. This could be highly dangerous for the region because the glaciers feed the River Amu and River Syr, and they are the only remaining storage for the supply of fresh water and moisture. Second, the Aral’s sea bed emits massive amounts of salt and dust into the atmosphere. Polluted air is carried over the area by a powerful air stream. Traces of pesticides and salt from the Aral region are now found in the blood of penguins in Antarctica. Moreover, the pollution affects areas thousands of miles away, such as the glaciers of Greenland and the forests of Norway.

In 2003 Kazakhstan decided to make this split permanent by building a dam (Kokaral Dike) between the northern and southern parts. The restoration effort focuses on the Northern Aral which is small and less polluted. This seals the fate of the Southern Aral, and is synonymous with its vanishing. The northern water supply, the River Syr has been restored and diverted back into the sea. Although it will not be the same again for sure, planners think that fishing will be rescued and the North Aral Sea will stabilize the climate by smoothing out the high and low temperature extremes and increasing rainfall. The efforts have helped to lower the salinity level which has even allowed the reintroduction of fishing in this area. The result is surprisingly encouraging. There are other proposals like diverting the Volga, Ob, and Irtysh rivers but this would be very costly and could cause yet another catastrophe.

This story has everything in it. Humans who disregard the ecosystem takes the gift in nature for granted. As we can see, however, nature is not infinite and it is breakable. Hundreds of years may pass until the region completely recovers. The magnitude of the disaster is comparable in scope to those of Hiroshima and Nagasaki, and might be even worse. This is a great example of short-term greed and ill-guided economic moves disregarding the whole ecosystem and bringing consequences which have to be dealt with in the long run. In this particular case, there could have been other ways to avoid the damaging decision to cut the water supply of the lake fully, such as relying on a different type of crop which requires less water, or making more efficient use of water, and so on.

This disaster is a single example of the type of global catastrophe we might encounter again in the future. This being so it should be kept in mind when we think of our future. A lot of the damage humankind causes might still be avoided if we act firmly and quickly. This is not just necessary for our grandchildren or our children but even for our own generation since the consequences of ecological destruction are being seen more rapidly now. The widely known global warming cannot be belittled, and, as the Aral Sea example might have taught us, the consequences can be terrible. It is likely that more such unpredicted events will afflict us. Added to this, there are water pollution, deforestation, and the destruction of wet-lands. Every day we hear or read about these consequences of negligence and greed. But these geographical features are all in perfect harmony, and we cannot rudely and unthinkingly destroy them. As Lester Brown comments, “Previous generations have always been anxious about the future, but we are the first who decide if the Earth inherited by our children will be inhabited.”

Timur Ceylan is an expert engineer at AMD Technologies, San Francisco.

References

• National report: “On the environment state and use of natural resources in the Republic of Uzbekistan.” State Committee on Nature Protection of Uzbekistan. Tashkent, 1998.
• K.Isentaev. “Geological structure and perspectives of oil and gas reserves of the Aral Sea.” Workshop report. Almaty, 1997.
• Ministerial conference of Central Asia. “Assessment of the environment.” Aarhus, Denmark, 1998.
• J. Mahambetova. Non-government union. “Aral tenizi.” Aralsk, 1999.

The conservation of soil is also important. But as its value has not been properly appreciated until recently, soil has become seriously polluted with chemical substances which can hurt the living species in it. These poisonous chemical substances include cadmium, arsenic, chrome, and mercury at excessive levels, lead, nickel, molybdenum and fluorine at medium levels and boron, copper, manganese and zinc at low levels.

There are a number of sources of these substances which accumulate in subsoil. Tones of such substances are dispersed into the atmosphere as a result of the burning of fossil fuels, the casting of minerals and other industrial activities. Atmospheric processes cause these substances to disperse and mix with the soil first and penetrate into plants later; polluted water and soil consequently cause disastrous problems for construction, the environment, and health.

The level of borax which is available in soil, for instance, is becoming overwhelming due to the extensive use of detergents and fertilizers. Super phosphate, which is a kind of fertilizer, and limestone, which is found in soil, are generally composed of small quantities of cadmium, copper, manganese, nickel and zinc. Cadmium and chrome are utilized in producing metal coatings; cadmium is also used in battery production; and arsenic is utilized in cotton, tobacco and fruit plantations as an insect and weed killer. As products in which these substances are found have been increasingly used in recent years, these substances have been consumed by human beings in higher proportions in their daily air, water and food intakes.

Although presently a partial solution, a method of improving soil by the use of plants has recently been developed and introduced as a clean and permanent solution. Research conducted has proved that plants have important functions in cleaning chemically polluted soil, and significant scientific findings have been obtained about how plants survive in an environment replete with poisonous chemicals.

Plants: The volunteer soil cleaners

The use of plants to eliminate substances which are unfriendly to the environment or to diminish their negative effects on the environment is called “phytoremediation.” Cleaning polluted soil with techniques that necessitate engineering processes is a rather costly operation. On the other hand, certain plant species have been granted the ability to concentrate heavy metals such as zinc, cadmium and nickel, which they take up from the soil, in their stems, shoots and leaves. The parts of these plants containing the concentrations of heavy metals are collected, reduced in volume and are stored for future use.

Plants which are capable of storing metals in themselves are used for soil-cleaning purposes in the mining industry. Bio-mining is defined as obtaining minerals by way of growing plants in polluted or mineralized soils and then harvesting them as soon as they have concentrated a sufficient amount of minerals in their tissues. Plants are burned after being baled and their residual ashes are being sold as mineral ores. Zinc has been produced at a rate of 30–40 % from ashes of the plant thlaspi caerulescens which was grown in a plantation rich in zinc in Pennsylvania.

How plants are employed in soil cleaning

Lately, a number of research projects have initiated on the plant thlaspi caerulescens, which is seen as useful in terms of soil cleaning. Thlaspi is a member of the broccoli and cabbage family and it grows in soils containing high rates of zinc and cadmium. These plants develop wide root formations in soils containing heavy metals; they transfer these heavy metals via their hair-like roots first to their stems and later to other parts, and store those heavy metals in their leaves. Storers like thlaspi are a good model of the mechanism of metal-storing and even shed light onto the biological system which plays a role in this process. The biological composition of these plants has been enriched with genes so that they assume a role in increasing the solubility of heavy metals in soil, in the transfer of metals to their roots, and in producing proteins to play the intermediary in such transfers.

While a typical plant is equipped with a storage capacity of 100ppm (gr per ton) zinc and 1ppm cadmium, thlaspi is created with a storage capacity of up to 30,000 ppm of zinc and up to 1,500ppm of cadmium, without any signs of being poisoned, whereas an ordinary plant may be poisoned with a zinc level of only 1,000ppm or cadmium between 20 and 50ppm. What would it have meant for living beings which are nourished by plants, if all plants had been created with as high a storage capability for heavy metals as that of thlaspi?

It has been noted, while researching the zinc-storage mechanism of thlaspi, that certain parts of the plant have been stimulated for the purpose of transferring zinc. While in ordinary plants gene-decoding of proteins which are charged with zinc transfer is regulated according to their zinc contents, in thlaspi synthesizing of the carrier proteins continues until the zinc contents of its tissues reaches very high levels.

How radioactive cesium is cleaned

It has been found, as a result of research into soils polluted with radioactive cesium-134 and cesium-137, that the area polluted by cesium-137 is under the threat of radioactive pollution, even if the effects of pollution that it caused over the soil surface would be lessened. One of the most important reasons for this is that cesium-137 is a long-lasting radioactive isotope with a half-life of 32.2 years.

Phytoremediation is preferable to alternative cleaning methods, which cost much more due to high energy inputs. However, cesium, in the form it is found in soil, is not absorbed by most plants, and ammonium ions cause the dissolution of cesium-137 in soil.

However, amaranthus retroflexus, which is a member of the goose-foot plant family, has been found to be forty times more efficient than other plants tested in cleaning the soil of radioactive cesium. Thus, polluted lands are expected to be cleaned within fifteen years if this plant is grown and harvested two or three times annually.

A plant fed by arsenic

Arsenic is utilized in the production of agro-chemicals that are used to kill weeds and insects in the sub-soil. The fern named pteris vittata has been found to be created with the capacity to store arsenic. When this plant fern was discovered to contain two hundred times more arsenic than the surrounding soil, it was understood that it is fed by arsenic. This discovery is expected to open new horizons in cleaning the agricultural land, especially in industrial and mining areas.

How damage caused by aluminum can be decreased

Aluminum, which is one of the most abundantly available elements (among oxygen, silicon, iron, magnesium, sodium, potassium, aluminum and calcium) in the earth, is among the main components of clay in sub-soil. It does not pose a threat to plants when it has a basic or neuter pH value. However, Al+3 which is a kind of aluminum dissolvable in acidic soils, is poisonous to the extent that it threatens plant roots.

How some plant species, among which are wheat, corn and barley, can be cultivated in acidic soils in spite of high metal rates is being researched. Studies in this context are being conducted on arabidopsis thaliana (the mustard family) whose gene map is prepared and which constitutes a model. A mutated arabidopsis, for instance, has been discovered to have been equipped with the capacity to render aluminum harmless. If the genes which play their role in this process can be determined, then gene transplantation will be possible to increase the resistance of plants which are sensitive to aluminum, such as barley, and barley production will accordingly be increased.

All these facts clearly indicate that the earth is like a great and continuously working factory or a guest house continuously becoming full and empty. The pollution which is an inevitable result of the activities of living creatures is kept under control by micro organisms, plants and animals which are the mirror-bearers of Almighty God’s attribute, al-Quddus, “the All-Pure.” The relations between these living creatures and the universe have been so perfectly programmed that all of them beautifully perform their duties.

References

• Brady, N.C. The Nature and Properties of Soils, 1990, 10th Edition.
• http://www.agclassroom.org/teen/ars_pdf/9earth/2000/06phytoremedation.pdf
• Altunay, Bedirhan. “Biotechnology of the Environment,” 2006, Sizinti, No: 335, p.526–528.