Study on Water-salt Change and Control Mechanism of Inland Lakes in Arid Areas, China
- 作者：Li junfengSheng dongHe xinlin
- 会议时间：2009-11-01
- 关键词：lake water balance ; water-salt balance ; stability salinity ; quantitative and qualitative model
- 作者单位：Li junfeng(College Of Water Conservancy & Architectural Engineering Shihezi University, Shihezi, Xinjiang, P. R. China, 832003 ;Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Bingtuan, Shihezi, Xinjiang, P. R. China, 832000)Sheng dong(College Of Hydrology and Water Resources, Hohai University, Nanjing, Jiangsu, P. R. China, 210098)He xinlin(College Of Water Conservancy & Architectural Engineering Shihezi University, Shihezi, Xinjiang, P. R. China, 832003 ;Key Laboratory of Modern)
- 母体文献：第十三届世界湖泊大会论文集
- 会议名称：第十三届世界湖泊大会
- 会议地点：武汉
- 主办单位：中国环境科学学会
- 语种：chi
摘要
It is common understanding lake shrinkage and laky salinization,which bring the degeneration of ecosystem in arid region valley.The inland lakes is shrinking rapidly mainly because of the diversion of the upstream of influent rivers for irrigation purposes.To research the evolution law and development trend prediction of the inland lakes,it is very important that how to obtain the lake salinization duration or water-salt approximate balance duration.In this article,we proposed a new lake classification method which merely including 4 type's lake in the arid region based on the water changing characteristics and water bal.ance principle of the inland lakes.With this method,we supposed rectangular tank lake model,analyzed the conception of drying time and drying index,the salinization time and the water-salt approximate equilibrium time could be gained by introducing some concepts,including the relatively stable salinity ratio and the evaporation-precipitation-inflow ratio and the evaporation-precipitation-outflow ratio.Through some cases were studied,some advice could provide vigorous support to the water-salt control mechanism of ecological restoration on arid inland lakes in China.