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Analysis on the Evolution Trend of the Aqueous Environment of Bosten Lake in Xinjiang

Bosten Lake is the largest inland freshwater lake in China and the largest existing lake in Xinjiang. While the water level of the lake is 1,048.0 m a.s.l., the length from east to west is 55 km and the width from south to northis 20~25 km , its water area and storage capacity are 1,160 km 2 and 8.41×10 9 m 3 respectively, and its water depth varies in a range of 8~15 m and is 8.1 m in average. Bosten Lake has the multiple functions, such as flood control, irrigation, providing the rich aquatic animal and plant resources, improving the ecosystems and the environment in Yanqi Basin and the lower reaches of Tarim River, developing the tourism and promoting the sustainable development of the regional economy. The aqueous environment of Bosten Lake since the Holocene Epoch, especially since recent 50 years, has been paid a great attention by many experts and scholars . After the field investigation, sampling analysis and systematical research, it is considered that some measures must be taken for reducing and maintaining the salt content of Bosten Lake below 1.0g/L.