西藏自治区土壤侵蚀特点及现状  

Characteristics and Status of the Soil Erosion in Tibet

作　　者：张建国[1,2] 文安邦[1] 柴宗新[1] 刘淑珍[1] 李辉霞[1,2] 

机构地区：[1]中科院,水利部成都山地灾害与环境研究所,四川成都610041 [2]中国科学院研究生院

出　　处：《山地学报》2003年第B12期148-152,共5页Mountain Research

基　　金：中国科学院知识创新工程重要方向项目(KZCX-SW-330)资助。~~

摘　　要：西藏自治区地域辽阔,土壤侵蚀复杂多样。本文在野外调查的基础上,对西藏自治区土壤侵蚀特点作了全面论述,并对西藏自治区不同类型土壤侵蚀区的土壤侵蚀现状做了较全面的分区评价。同时取雅江中游地区19个县作为典型区域,利用1999年1:20万TM遥感图像土壤侵蚀解译结果,对该典型区域的土壤侵蚀现状作了定量评价。最后根据评价结果,对西藏自治区土壤侵蚀的发展趋势做了预测。Different kind of erosion distributed on broad territory of Tibet Autonmous Region. Based on the investigation of fields, the characteristics of the soil erosion in Tibet Autonmous Region is discussed, the status of different region in Tibet is also evulated. At same time, middle section of Yaluzangbu River (include 19 counties) is selected as typical region, based on the result of interpretation of TM image, which was photoed in 1999, a quantitative evaluation was made to this typical region. At last, the development trend of the soil erosion and is also forecasted based on the evaluation result.

关 键 词：西藏 土壤侵蚀 评价 

分 类 号：S157[农业科学—土壤学]