西北干旱半干旱地区湖泊应用生态修复技术的探讨

本文针对西北干旱半干旱地区湖泊水环境现状，如水位下降、面积萎缩、水质成化、生态系统退化、生物多样性减少等，从控制外源污染的技术、消除内源污染的技术、藻类控制技术和水质强化净化技术等方面总结了目前国内外使用较为广泛、理论比较成熟、处理效果较好的生态修复技术，提出在湖泊生态修复过程中应考虑的因素。在西北干旱半干旱地区湖泊的生态修复中，应根据当地湖泊的实际情况，对各种技术进行综合应用。

Discussion on Ecological Rehabilitation Technology in Arid and Semi -arid Region Lake in the Northwestern of China

Aiming at the problems of water lever lowering and shrinking of lakes, water salinization and loss of biological diversity occur in most of lakes in arid and semi - arid region in Northwest China. This text summarizes some ecology rehabilitate techniques from four aspects of the outside source, inside source, algae control technique and water quality purification which is broad, full blown and whose treatment effect is finer. Factor which should be calculated in lake ecosystem restoration are proposed. Theory basis is provided which base on practical situation of the local lake and application of the technologies for lake ecosystem restoration of arid and semi - arid region in Northwest China for the future.