切沟侵蚀研究初探——以云南省文山县新开田村为例  

Primary Research on Erosion of Gully——Taking Wenshan County in Yunnan Province as an Example

作　　者：秦高远[1] 周跃[1] 杨黎[1] 

机构地区：[1]昆明理工大学环境科学与工程学院

出　　处：《水土保持研究》2007年第5期79-81,共3页Research of Soil and Water Conservation

基　　金：国家“973”计划“纵向岭谷区土地利用的侵蚀环境效应及其生态安全意义”(2003CB415105-6)

摘　　要：选取了文山县新开田村的典型切沟作为对象,通过测定土壤性质、侵蚀钉及全站仪测量的方法进行研究。结果表明,该地区土壤水保功能较差;在雨季期间,切沟侵蚀程度较大,特别是沟头的溯源侵蚀,在一个雨季内估计能推进1m左右;全站仪测量生成的三维图能有效的表征侵蚀沟的变化。Typical gullies in Xinkaitian village of Wenshan county were chosen as objects to study their erosion variations through determinations of soil characteristics and erosion nail, and three dimension graph generated by total station. Following results were found out. Firstly, the local soil was in a state with weaken erosion-proof functions secondly, there was a more severe soil erosion in monsoon, especially for the headcut erosion at the inlet of the gullies with a capacity to expend by approximate one meter in a monsoon; further more, the three dimension graphs generated by Total station can effectively indicate the erosion variation of these gullies.

关 键 词：切沟 侵蚀钉 全站仪 

分 类 号：S157.1[农业科学—土壤学]