[1]董磊,彭明春,王崇云,等.基于USLE和GIS/RS的滇池流域土壤侵蚀研究[J].水土保持研究,2012,19(02):11-14,18.
 DONG Lei,PENG Ming-chun,WANG Chong-yun,et al.Research on Soil Erosion Based on the USLE Model and RS/GIS in the Dianchi Lake Watershed[J].,2012,19(02):11-14,18.
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基于USLE和GIS/RS的滇池流域土壤侵蚀研究()
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]

卷:
19卷
期数:
2012年02期
页码:
11-14,18
栏目:
出版日期:
2099-01-01

文章信息/Info

Title:
Research on Soil Erosion Based on the USLE Model and RS/GIS in the Dianchi Lake Watershed
作者:
董磊1 彭明春1 王崇云1 杜建海2 陈振亮1 孔维琳1
1. 云南大学, 生态学与地植物学研究所, 昆明 650091;
2. 云南秀川环境工程技术有限公司, 昆明 650021
Author(s):
DONG Lei1 PENG Ming-chun1 WANG Chong-yun1 DU Jian-hai2 CHEN Zhen-liang1 KONG Wei-lin1
1. Institute of Ecology and Geobotany, Yunnan University, Kunming 650091, China;
2. Yunnan Xiuchuan Environmental Engineering Technique Co.Ltd., Kunming 650021, China
关键词:
土壤侵蚀USLESPOT5影像滇池流域
Keywords:
soil erosionUSLESPOT5 imagethe Dianchi Lake watershed
分类号:
S157
摘要:
人类不合理的土地利用方式是水土流失发生的主要原因之一。研究滇池流域的土壤侵蚀现状,对于控制流域内生态环境恶化,建立良好的生态环境具有十分重要的意义。采用USLE模型并结合RS,GIS技术对滇池流域土壤侵蚀进行估算,分析不同坡度和不同植被类型对侵蚀的影响,同时提出了基于植被覆盖度的植被覆盖与作物管理因子计算方法。结果表明:滇池流域土壤侵蚀量为233.96万t,土壤侵蚀以中、轻度侵蚀为主,强烈以上侵蚀较弱。侵蚀主要发生在8°~35°的区域,灌木林地的侵蚀模数最大。在GIS支持下,通过土壤侵蚀模型进行定量评价,可高效、客观地反映土壤侵蚀情况,对减少流域内新增土壤侵蚀风险,控制非点源污染有着重要的参考价值。
Abstract:
Unreasonable land use pattern is the main cause leading to soil erosion.It is important to evaluate soil erosion in the Dianchi Lake watershed for the purpose of preventing soil and water from loss,controlling environmental deterioration,and establishing good ecological environment.We conducted soil erosion research in the Dianchi Lake watershed by using RS/GIS and USLE model.Impacts of different slope and vegetation types on soil erosion were discussed.And the way to calculate C factor based on vegetation coverage was proposed.The results indicated that the total rate of soil erosion was 2.339 6 million tons.Most of soil erosion occurred at mild and moderate degree.And heavy soil erosion area was few.Soil erosion mainly occurred in the region of the slope from 8 °to 35°.Soil erosion modulus was the largest in shrublands.The quantitative assessment by USLE model could indicate the soil erosion efficiently and objectively with the support of GIS.It was an extremely important reference for reducing soil erosion and controlling non-point source pollution.

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备注/Memo

备注/Memo:
收稿日期:2011-9-23;改回日期:2011-10-22。
基金项目:国家水体污染控制与治理科技重大专项研究课题(2008ZX07102-004)
作者简介:董磊(1987- ),男,新疆人,硕士生,主要从事植被、景观生态学方面的研究。E-mail:dl-donald@163.com
通讯作者:王崇云(1971- ),男,云南丽江人,博士,副教授,研究方向植被生态学、生态系统服务功能、生物多样性保护、进化生态学等。E-mail:cywang@ynu.edu.cn
更新日期/Last Update: 1900-01-01