With population growth,industrialization and expansion of irrigated agriculture,in some areas over-exploitation of lake resources,and disruption of the balance of lake ecosystems,have caused problems within lakes such as drying, shrinkage and serious water pollution. This can lead to degradation of the ecological environment around the lake,land desertification,and salinity intensification. Therefore,it is critical to maintain the balance of lake ecosystems. In this paper taking East Juyanhai as the study a...