ZHAO Guo-ji.Research on the Laws of Soil and Water Loss in Sand Rock Region, Inner Mongolia[J].Research of Soil and Water Conservation,2001,8(04):158-160.
内蒙古砒砂岩地区水土流失规律研究
- Title:
- Research on the Laws of Soil and Water Loss in Sand Rock Region, Inner Mongolia
- Keywords:
- sand rock; interaction; erosion
- 分类号:
- S157
- 摘要:
- 内蒙古砒砂岩地区是黄河重要的粗沙来源区,该地区具有水蚀、风蚀及重力侵蚀交互的特点。利用三个试验流域1983～1997年的天然观测资料,分析得到了砒砂岩侵蚀交互作用的时空分布规律;通过对砒砂岩的理化及侵蚀产沙特性的分析表明,砒砂岩的产流和产沙能力均高于当地的黄土和风沙土。本研究建立了砒砂岩地区的水蚀模型,并对水力侵蚀过程进行了模拟。
- Abstract:
- Coarse sand in the Yellow River mainly comes from sand rock area,Inner Mongolia,water erosion,wind erosion and gravitational erosion occur interactively in this area.Based on observed data from three experimental basins in 1983~1997,the temporal and spatial distribution law of erosive interaction is analyzed.Through the analysis of characteristics of physic-chemistry and sediment yield produced by erosion in the area,the result show that the capacity of runoff and sediment yield of sand rock area is higher than that of local loess and wind-sandy soil.Finally.A model of water erosion in the area is established,and the process of hydraulic erosion is simulated also.
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备注/Memo
收稿日期:2001-8-25。
作者简介:赵国际,男,(1954- ),伊克昭盟水保局局长,从事水土保持管理工作.