摘要
利用第三次水土流失普查数据,分析了目前我国水土流失总体状况,水蚀、风蚀和冻融侵蚀等不同类型水土流失状况,以及东部、东北、中部和西部地区4大经济区域水土流失状况。结合水利部开展的第一次和第二次全国水土流失普查数据,分析了15年来水土流失的动态变化情况,并对我国主要江河流域多年来土壤流失量变化状况做了分析。
Based on the data of third soil erosion census, analysis is made on the general condition of water and soil erosion at present, including water erosion, wind erosion and freeze-thaw erosion, as well as soil and water losses situation in four economic regions of east, northeast, middle and west China. Dynamic changes of soil erosion in the past 15 years are examined with the data of censuses collected by the Ministry of Water Resources. Evaluation of soil losses changes over years in major fiver basins of China is also conducted.
出处
《中国水利》
北大核心
2009年第7期8-11,共4页
China Water Resources
关键词
水土流失
水蚀
风蚀
侵蚀模数
soil and water losses
water erosion
wind erosion
erosion module
