| 基于GIS的三江源地区土壤侵蚀综合分析 |
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| 引用本文： | 陈琼,吴万贞,周强,杨玉含. 基于GIS的三江源地区土壤侵蚀综合分析[J]. 农业科学与技术, 2010, 0(5) |
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| 作者姓名： | 陈琼 吴万贞 周强 杨玉含 |
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| 作者单位： | 青海师范大学生命与地理科学学院,青海西宁,810008 |
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| 摘 要： | 以通用土壤侵蚀模型为基本思路,选择三江源地区作为研究对象,采用GIS方法对该地区不同土壤侵蚀类型的程度进行了半定量评价.评价结果表明,三江源地区水力侵蚀主要集中在东南和南部的玉树、囊谦、班玛、久治等地区的高山和极高山地区,其侵蚀程度和地形、降水、河流和人类活动等因素分布相关;冻融侵蚀主要分布在三江源区的西北大部分地区,全区中等侵蚀程度以上的地区约占全区面积的1/2以上.Abstract：In this paper,based on the common soil erosion model,the Three-River Headwaters region was select for study object.GIS methods are applied to conduct Semi-quantitative assessment for different types of soil erosion,and some results are concluded.The water erosion occurs in High Mountain and extra-high mountain of Yushu,Nangqian,Banma and Jiuzhi County in the southeast and south of the Three-River Headwaters region.The degree of erosion is prone to topography,precipitation,river and human activity.The freeze-thaw erosion mainly distributes in the northwest of the Three-River Headwaters region.The area of middle and above middle erosion degree accounts for roughly 50%.
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| 关 键 词： | GIS方法 三江源地区 土壤侵蚀模型 综合分析 Based Region Soil Erosion Analysis soil erosion model region 侵蚀程度 water erosion 土壤侵蚀类型 degree different 研究对象 水力侵蚀 三江源区 人类活动 评价结果 |
Synthesis Analysis of Soil Erosion for Three-River Headwater Region Based on GIS |
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| Abstract: | Three-River Headwaters region Soil erosion Comprehensive analysis |
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| Keywords: | Three-River Headwaters region Soil erosion Comprehensive analysis |
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