| 基于 GIS和USLE/RUSLE的小流域土壤侵蚀量研究 |
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| 引用本文： | 杨磊,丁树文.基于 GIS和USLE/RUSLE的小流域土壤侵蚀量研究[J].干旱环境监测,2011,25(1):24-28. |
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| 作者姓名： | 杨磊 丁树文 |
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| 作者单位： | 杨磊,YANG Lei(新疆电力设计院,新疆,乌鲁木齐,830002);丁树文,DING Shu-wen(华中农业大学,资源与环境学院,湖北,武汉,430070) |
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| 摘 要： | 依据实地调查资料,建立了典型小流域地理数据库;应用采样分析数据结果及坡面单元法,确定了定量计算通用土壤流失方程RUSLE因子指标的方法.在地理信息系统ArcGIS支持下,根据USLE/RUSLE土壤侵蚀预测模型对数据库实施运算操作,预测了小流域土壤侵蚀量.结果表明:①流域总体土壤侵蚀为中度,治理难度仍很大;②坡耕地是流...
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| 关 键 词： | USLE/RUSLE土壤侵蚀模型 ArcGIS地理信息系统 小流域 土壤侵蚀预测 |
Study on Soil Erosion of Small Watershed Based on GIS and USLE/RUSLE |
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| YANG Lei,DING Shu-wen.Study on Soil Erosion of Small Watershed Based on GIS and USLE/RUSLE[J].Arid Environmental Monitoring,2011,25(1):24-28. |
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| Authors: | YANG Lei DING Shu-wen |
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| Institution: | YANG Lei1,DING Shu-wen2(1.Xinjiang Electric Power Design Institute,Urumqi Xinjiang 830002,China,2.Huazhong Agricultural University,College of Resource and Environment,Wuhan Hubei 430070,China) |
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| Abstract: | Through investigation data,geographic database in small watershed was established.The method of USLE equation factor index was confirmed by sampling analysis data and slope cell approach.The predicted results about soil erosion of small watershed showed total soil erosion was moderate and management was highly difficult.Sloping land was the source of watershed soil erosion,because soil erosion of sloping land with 44.45 percent sloping land of watershed area was 78.89 percent of total soil erosion.Cultivati... |
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| Keywords: | USLE/RUSLE soil erosion model GIS small watershed soil erosion predicting |
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