The aral sea desertification

Environmental Impacts Water Levels The primary effect of the Aral Sea desiccation has been the significant loss of water in the sea.

The aral sea desertification

From ancient times it was known as an oasis. Traders, hunters, fishers, and merchants populated this fertile site littered with lagoons and shallow straits that characterised the Aral landscape.

Once the fourth largest inland body of water in the world, in the past few years the Aral Sea has gained global attention as one of the greatest man-made natural disasters in the world. Now it is the eighth largest inland body of water on account of large amounts of water diverted for crop irrigation from the Amudarya and Syrdarya rivers.

Extreme shrinkage of the once abundant Sea has altered the climate and the livelihood of millions of people. In the days of the Cold War, the Aral Sea basin was designated by the former Soviet Union as The aral sea desertification that would provide independence from the West.

Although the region did produce heartily for a time, the devastating effects of desertification were not anticipated by the central planners.

Now the Sea has in places retreated more than km from its original boundaries. Abandoned fishing boats and scattered marine equipment litter the dry, dusty plains previously covered with water. As water quantity diminished, salinity rose to levels toxic for fish and other wildlife.

An estimated 60, people abandoned their fishing livelihoods. Carp, bream, pike-perch, barbel, sturgeon, and many other types of commercial species of fish used to bolster profitable businesses.

Commercial fishing ceased inand soon muskrat farms and other game trades followed suit. Water had been so heavily diverted that by hardly a stream reached the Sea from either the Amudarya in the south or the Syrdarya in the north. Due to a strong NE wind, over million tons of salty dust blows away from the Sea annually.

Aerosols are carried up into the higher layers of the atmosphere and spread all over the globe; Aral region pesticides have even been found in Antarctic penguins.

The dust contains an unhealthy mixture of fertiliser and other agricultural chemicals and household waste.

Salt and pesticide chemicals have seeped into groundwater and caused health disasters and further complications for agriculture.

Polluted water runs down into lowland reservoirs causing secondary salinization and making irrigation less effective.

The latter exacerbates the agricultural difficulties because more water is needed to attain a healthy crop.

General Problem Background

The State Hydrometeorological Committee of Uzbekistan reported data in that the content of 6-valent chromium, copper, phenols, and sulphates reached well above the maximum allowed concentration of contaminants allowed in Russia and the former USSR. Top Disease Perhaps the most significant factor of the Aral Sea crisis is the health of the people.

Hospitalisation rates increased from 20 to 25 per persons between and Mortality rates have increased by 15 times in a ten year period, and diseases such as cardiac, vascular, gallstone, and tuberculosis have risen significantly.

The rise in child mortality has been attributed to environmental deterioration and now ranks highest in the former Soviet Union. The ecological disaster has been directly linked by medical studies to diseases of blood, cancer, asthma, and heart malfunction. Medecins Sans Frontieres MSFa non-governmental organisation, has begun a cooperation with the governments of Turkmenistan and Uzbekistan to implement DOTS, a World Health Organisation strategy used in over countries world-wide to reduce tuberculosis.

MSF began to pilot projects in and vouches to stay committed to the Aral Sea area in order to be certain the disease is effectively combated. Top Efforts An estimated five million people have been devastated by the Aral Sea disaster.

So far the largest effort to address the issues have been conducted by the World Bank and UN with goals to stabilise the Aral Sea level, rehabilitate the region and improve its water management. Although this project spent tens of millions of dollars in ten years, the first goal is no longer thought feasible, the second and third are just getting underway.

In short-term response to this failure, in the United Nations Development Program UNDP sought to provide safe drinking water to communities in the worst areas. The project closed in with reports of success accompanied by various shortcomings.

Many pumps were of poor quality or were installed improperly resulting in over three quarters of them being contaminated after one year.

Further proposals by the UN and World Bank are underway, but their success is doubted. A number of Phase I preparatory initiatives have been carried out, but due to failure of some countries to provide the financial resources committed to in Paris, most projects of the Aral Sea Program lie in wait.

This prompted Nursultan Nazarbaev, President of the Republic of Kazakstan, in to request the participating nations to extend their assistance and to support the Immediate Impact Project. The population in desperate need of assistance could not wait for various nations to make good on their long term promises.

In December of55 Muslim countries adopted the Resolution on Economic and Financial Assistance to the Government of the Republic of Kazakstan and to international organisations to aid the rehabilitation of the Aral Sea region.Desertification is the process by which a habitable place of land becomes a desert due to climatic changes or ill human practices in the env.

Water Levels

of the Aral Sea: desertification, dust and salt winds, changes in regional climate, and health problems of the local population (Roll, et al., ). Because the Aral Sea lies in a. Nevertheless, preservation of the Aral may require implementation of the controversial project to divert water from western Siberia into the Aral Sea basin.

The Aral Sea is a huge, shallow, saline body of water located in the deserts of the south-central Soviet Union (Figs. 1 and 2). Fifty years after its water sources were diverted, the Aral Sea is virtually gone. Some estimates suggest that the lake is just 10 percent of its original size.

iPad users can view more images of the Aral Sea by downloading the free NASA Visualization Explorer app. Those images are also available on the Web. A massive irrigation project has devastated the Aral Sea over the past 50 years. These images show the decline of the Southern Aral Sea in the past decade, as well .

The aral sea desertification

Aral Sea region based on an identification of linkages between socio-economic human dimensions and air-sea-land interaction aspects of the climate system, to prevent or mitigate the effects of ongoing desertification.”.

Aral Sea - Wikipedia