艾比湖水位变化对湖滨湿地盐渍化的影响研究

Research on the water level change effect on the salinity of everglade around Ebinur Lake

通过比较2000～2005年艾比湖水域及湖滨盐渍化土地的变化特点,分析了艾比湖水位变化对湖滨湿地盐渍化的影响机制和影响方式。发现个别年份艾比湖水位上升所形成的大水面虽然可以在短时间内覆盖原有的盐渍化土地而使盐渍化总面积减少,但水位急剧上升同时也是导致湖滨土地盐渍化面积扩大、程度加剧的根本原因。要想减轻艾比湖湿地盐渍化程度加重所带来的危害,保证艾比湖拥有一个稳定的水位是根本的出路。

The change characteristics of the water and salinization land area were compared and the relationship between the them in Ebinur Lake from 2000 to 2005 was analyzed. The conclusions were that if the area of lake expanded,the original area of the dried lake-bed would be inundated. Furtherly,the desertification area would be reduced and the ecological environment be improved to some extent. However,the expansion of water would cause the salinity increasing. Once the water level dropped,the saline soil would be bared and begin to be eroded. The only way we could prevent the expansion of salinity was to keep a reasonable Change scope of water level.