黄土高原典型地区土壤侵蚀研究

本文对黄土高原典型地区土壤侵蚀以往的研究结论进行了综合分析 ,结果表明 :(1)影响土壤侵蚀的主要因素为降雨、地形及土地利用 ;(2 )土壤侵蚀主要类型为水蚀及重力侵蚀 ;(3)土壤侵蚀主要集中在汛期 ;(4 )土壤侵蚀具有垂直分带性 ;(5)在研究的四个典型地区中 :绥德地区侵蚀严重 ,天水地区侵蚀相对较轻微 ,安塞地区侵蚀典型 ,西峰地区侵蚀特殊。

The soil erosion in Typical Regions of Loess Plateau are studied in this paper:(1)the main factors affecting soil erosion are precipitation,topography and land use;(2)the main erosion types are water erosion and gravity erosion;(3)the soil erosion is mainly produced in flood season;(4)the soil erosion vertically distributes regularly;(5)soil erosion is heavy in Suide,light relatively in Tianshui,typicial in Ansai,and exceptional in Xifeng among four studied typical regions of Loess Plateau.