Poyang Lake dries save the planet
In China, there is drying up of two large lakes Poyang and Dongting, which affects more than 40 million people in five provinces. Poyang Lake, located in Jiangxi Province, is the largest freshwater lake in China. Recently, surface water decreased by 200 square kilometers due to the lack of water in the upper reaches of the Yangtze River. Undergoing many geological changes, Poyang narrowed in the north and increased in the south.
Occupying a total area of 4,000 square kilometers, Poyang was subject to strong industrial pollution due to the relatively slow economic development of the province. The lake is fed by five rivers and connected to the lower reaches of the Yangtze. In the dry season lake water goes into the river, and in the rainy season Poyang spreads. Dynamic ecosystem of the lake provides a place of residence of more than 120 species of fish and 300 species of river birds, many of which are on the verge of extinction. 98% Siberian herons arrive in the region in the winter
Sandy works have become a major source of economic development of the region in recent years. At the same time, they were the cause of the extinction of entire populations of animals. Sandy works polluting lake water, and a huge number of ships passing through the lake, for example, prevent the guinea pigs look for food.
Local authorities plan to build a dam with gates flood gates at the narrowest part of the channel connecting the Yangtze River and Poyang. The reason for this is the significant reduction in the level of water in the winter for the past 10 years. To all, a seasonal decrease in water begins much earlier and lasts longer. Because of the severe drought in the summer of 2011, some parts of the lake turned into a meadow area. However, by the general causes permanent reduction in water level are climate change, building the world's largest hydroelectric power station "Three Gorges" and water consumption by the local population.