贵州省水土流失现状及防治对策

Present Situation and Its Preventive Strategies of Soil and Water Loss in Guizhou Province

该大分析了贵州省人口、经济与生态环境之间的动态关系，根据水土流失面积大。发展速度快，区域性强，以坡耕地侵蚀为主的特点。提出人口增长，粮食不足造成坡地农业扩大是水土流失的根本原因。水土流失使区域生态系统严重退化，旱、涝等自然灾害加剧，已成为贵州山区经济发展的重要障碍和农村贫困的根源。从持续发展战略角度提出了贵州省水土流失的防治对策．

An analysis has been made on dynamic relationship among the population economy and ecology in Guizhou province。Up to the end of 1988,soil erosion area covers 43.5%of theprovince it is 2.1 times more than that of 1952.The Wu river the South-pan and North-pan river watershed are the most serious areas with soil and water loss in Guizhou province Soil ero-sion on hillslope land is the first to be affected on erosion area and quqntity It has been indicated that the basic reason of soil and water loss is enlarged by population growing and grain inadequate in the province Soil and water loss lead the degradation of regional economics system and natu-ral disasters sush as drought and waterlogging to be more and more frequent and serious Now soil erosion bas become an important obstacle for further economic development and impover-ished an origin in rural district In accordance with sustainable develo;ment the countermeasures to prevent and control the soil erosion in Guizhou province are proposed