摘要
Abstract
Based on the dynamic monitoring of soil and water loss in Haihe River Basin in 2020,the soil erosion severity index of county-level administrative regions and distribution characteristics of soil and water erosion in the scale of basin were calculated,the comprehensive prevention and control measures of soil and water erosion for this area were proposed in the paper.It showed that the area of soil and water erosion accounted for 20.84%of the total land area,and 34.21%of the mountainous area.In Haihe River Basin,five county-level administrative districts are assessed as having serious soil erosion,and 63 were more serious.The distribution of soil and water loss is mainly concentrated in the loess hilly area in the upper reaches of Yongding River,the earth-rock mountainous area of Taihang Mountain,the rocky mountainous area of Yanshan Mountain in northern Hebei Province and the Bashang sandstorm area in northern Yanshan Mountain,etc.Cultivated land without irrigation conditions,forestland,other grassland,shrub land and natural pasture land are the key soil and water loss areas.The soil and water erosion area is small,but relatively concentrated and more harmful.Soil and water loss is still one of the main ecological problems in the Haihe River basin.Currently,soil erosion remains one of the main ecological problems in the Haihe River Basin.The prevention and control of soil erosion should be combined with the characteristics of regional soil erosion,scientifically planned,and systematically configured with various measures to promote high-quality development of soil erosion control in the basin.关键词
海河流域/水土流失/空间分布/防治对策Key words
Haihe River Basin/soil and water erosion/spatial distribution/prevention and control measures分类
农业科技
