[1]李婷,张世熔,廖明辉,等.基于3S和USLE的沱江流域中游土壤侵蚀定量评价[J].水土保持研究,2011,18(01):24-27.
　LI Ting,ZHANG Shi-rong,LIAO Ming-hui,et al.Quantitative Assessment of Soil Erosion in the Middle Reach of Tuojiang River Basin Based on 3S and USLE[J].Research of Soil and Water Conservation,2011,18(01):24-27.
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基于3S和USLE的沱江流域中游土壤侵蚀定量评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 18 期数: 2011年01期 页码: 24-27 栏目: 出版日期: 2011-02-20
Title:
Quantitative Assessment of Soil Erosion in the Middle Reach of Tuojiang River Basin Based on 3S and USLE
作者:
李婷1, 张世熔1, 廖明辉2, 唐丽梅1
1. 四川农业大学 资源环境学院, 四川 雅安 625014;
2. 四川省地震局测绘工程院, 四川 雅安 625000
Author(s):
LI Ting1, ZHANG Shi-rong1, LIAO Ming-hui2, TANG Li-mei1
1. College of Resources and Environment of Sichuan Agricultural University, Ya’an, Sichuan 625014, China;
2. Survey Engineering Institute of Earthquake Administration of Sichuan Province, Ya’an, Sichuan 625000, China
关键词:
土壤侵蚀; 定量评价; 沱江流域
Keywords:
soil erosion; quantitative assessment; Tuojiang River Basin
分类号:
S157.1
摘要:
以川中丘陵区沱江流域中游为研究区域，在3S的技术支持下，以美国通用土壤流失方程（USLE模型）为评价模型，利用ArcGIS 9.2的栅格数据空间分析功能，对该区域土壤侵蚀强度进行了预测和估算。结果表明：流域的年均土壤侵蚀模数为1 543 t/（km2·a），侵蚀强度为轻度。其中土壤侵蚀中度以下占到流域面积的91.5%，强度侵蚀、极强度侵蚀和剧烈侵蚀分别为3.5%，2.8%和2.2%，极强度和剧烈侵蚀区分布于区域中西部的低山地带，流域土壤侵蚀与地形、土地利用方式相关性很大。
Abstract:
Quantitative research on the soil erosion intensity in the middle reach of Tuojiang River was estimated via utilizing USLE model supported by GIS and RS technology. The results showed that the mean soil erosion rate is 1 543 t/(km2·a) in the study area. The soil erosion intensity below moderately accounted for 91.5% of the area, the highly erosion area account for 3.5%, the very high erosion area account for 2.8%, the severe erosion area account for 2.2%. The very high erosion and severe erosion area was mainly distributed in the middle and western part. The soil erosion was great relatives with terrain and land use type.

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备注/Memo

收稿日期:2010-6-13;改回日期:2010-9-8。
基金项目:科技部科技支撑计划（2006BAD10A01，2006BAD10A06和2008BAK51B02）；四川公益性科技攻关专项（2007NGY006）
作者简介:李婷（1982- ），女，四川广元人，硕士，讲师，主要从事3S技术在资源环境中的应用。E-mail：lt_sicau@yahoo.cn

更新日期/Last Update: 1900-01-01