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Lake Manantali, 477 km 2, displaced 12,000 people. Resettlement Dams and the creation of reservoirs also require relocation of potentially large human populations if they are constructed close to residential areas. The record for the largest population relocated belongs to the Three Gorges dam built in China. Its reservoir submerged a large ...
Desertification is a gradual process of increased soil aridity.Desertification has been defined in the text of the United Nations Convention to Combat Desertification (UNCCD) as "land degradation in arid, semi-arid and dry sub-humid regions resulting from various factors, including climatic variations and human activities."
An irrigation scheme draws water from groundwater, rivers, lakes, or overland flow, and distributes it over a certain area. Hydrological , or direct, effects of doing this [ 1 ] include reduction in downstream river flow, increased evaporation in the irrigated area, increased level in the water table as groundwater recharge in the area is ...
In the Coachella Valley, water continues flowing to lakes and golf courses, even as the Colorado River reaches new lows. Critics say it's time to limit heavy water use.
Climate change 's hotter temperatures and society's diversion of water have been shrinking the world's lakes by trillions of gallons of water a year since the early 1990s, a new study finds. A ...
The two main ways that endorheic lakes accumulate water are through river flow into the lake (discharge) and precipitation falling into the lake. [2] The collected water of the lake, instead of discharging, can only be lost due to either evapotranspiration or percolation (water sinking underground, e.g., to become groundwater in an aquifer).
Boatzon looked at the economic and environmental importance of the 10 largest lakes in the U.S. Lake sizes and locations are based on Census data.
People in Thar desert. People have struggled to live in deserts and the surrounding semi-arid lands for millennia. Nomads have moved their flocks and herds to wherever grazing is available, and oases have provided opportunities for a more settled way of life. The cultivation of semi-arid regions encourages erosion of soil and is one of the ...