[1]史彩宁,常庆瑞,王春梅.基于GIS的延安市土壤侵蚀强度等级评价[J].水土保持研究,2010,17(03):28-31.
　SHI Cai-ning,CHANG Qing-rui,WANG Chun-mei.Evaluation on Soil Erosion Intensity Grade in Yan’an Area Based on GIS[J].Research of Soil and Water Conservation,2010,17(03):28-31.
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基于GIS的延安市土壤侵蚀强度等级评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年03期 页码: 28-31 栏目: 出版日期: 2010-06-20
Title:
Evaluation on Soil Erosion Intensity Grade in Yan’an Area Based on GIS
作者:
史彩宁1, 常庆瑞1, 王春梅2
1. 西北农林科技大学 资源环境学院, 陕西 杨陵 712100;
2. 中国科学院 水利部 水土保持研究所, 陕西 杨陵 712100
Author(s):
SHI Cai-ning1, CHANG Qing-rui1, WANG Chun-mei2
1. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
关键词:
土壤侵蚀; GIS; 坡度变换; 综合侵蚀强度指数; 延安市
Keywords:
soil Erosion; GIS; slope scaling; comprehensive erosion index; Yan’an
分类号:
S157.1;TP79
摘要:
以延安市为例，应用GIS技术依据水利部土壤侵蚀分类分级标准进行土壤侵蚀强度等级评价。分析了延安市2006年土壤侵蚀强度等级及各县市侵蚀差异性，定量研究坡度衰减对土壤侵蚀评价结果的影响并将土壤侵蚀强度评价结果与2002年土壤侵蚀强度进行比对分析。结果表明：2006年延安市各县市中吴起县土壤侵蚀最为强烈，黄龙县最弱；经过坡度变换，延安市约68%的地区侵蚀增强；与2002年相比，2006年延安市轻度侵蚀和剧烈侵蚀面积减小，其它各侵蚀强度等级面积增大。
Abstract:
According to MWR (Minister of Water Resources) standard of soil erosion grading and based on GIS, this article evaluated soil erosion intensity grade, taking Yan’an as an example, and analyzed the differences of soil erosion intensity grades among different counties of Yan’an in 2006. Gradient reduction and its influence on soil erosion evaluation results were studied quantitatively, and the result is compared with soil erosion intensity in 2002. Among all the counties, Wuqi county had the most intensive soil erosion, while Huanglong county is the least. Compared with soil erosion in 2002, there was a rise in soil erosion intensity in nearly 68% area of Yan’an after gradient transform was taken into account. There was a decrease in area in weak and severe magnitude erosion whereas an increase in area in the other soil erosion grades in Yan’an.

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备注/Memo

收稿日期:2010-3-16。
基金项目:国家重点基础研究发展计划“区域水土流失与趋势分析”（2007CB407203）
作者简介:史彩宁（1977- ），女，硕士研究生，研究方向：遥感与GIS技术应用。E-mail：jennyscn79@163.com
通讯作者:常庆瑞（1959- ），男，教授，博士生导师，研究方向：资源环境与3S技术应用。E-mail：chqr@nwsuaf.edu.cn

更新日期/Last Update: 1900-01-01