左江流域水土流失现状与治理措施

左江流域包括扶绥、崇左、宁明、龙州、凭祥、大新六县市,位于南宁地区的西南部。由于长期以来不合理的开发利用,致使水土流失现象十分严重,不但有面蚀、沟蚀,有些地方甚至发展成崩岗。该区域总面积15092.39Km²,水上流失面积525.81Km²,本文在分析水土流失现状及成因的基础上,提出相应的水土保持措施。

THE SITUATION AND CONTROLLING MEASURES OF WATER AND SOIL LOSS IN ZUOJIANG BASIN

Zuojiang basin locates in the Southwest of Nanning region, including six counties and cities, (Fusui,Chongzuo, Ningming, Longzhou, Pinxiang, Daxin). A long time irrational land use has resulted in serious water and soil loss with surface erosion, gully erosion and gravity erosion. The basin has a land area of 15,092. 39 square kilometers and the area of water and soil loss is 525. 81 square kilometers. On the basis of the analysis of present situation and forming rules, this paper suggests the relevant measures for controlling water and soil loss in this area.