| 浅论区域水土流失模型设计及参数采集方法 |
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| 引用本文： | 崔琰,李锐,杨勤科. 浅论区域水土流失模型设计及参数采集方法[J]. 节水灌溉, 2008, 0(3): 31-33 |
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| 作者姓名： | 崔琰 李锐 杨勤科 |
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| 作者单位： | 1. 中国科学院水利部水土保持研究所,陕西,杨凌,712100;西安文理学院,陕西,西安,710065;中国科学院研究生院,北京,100039
2. 中国科学院水利部水土保持研究所,陕西,杨凌,712100 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 在已有区域试验研究和观测数据、水土流失因子研究成果基础上,基于坡面土壤侵蚀机理对区域水土流失过程进行分析,基于结合GIS空间分析功能,进行了区域尺度上水土流失模型设计的初步尝试,并提出了模型所需参数的提取方法及精度要求,本模型在延河流域试运算结果反映了接近现实的土壤侵蚀时空分布趋势和分异。
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| 关 键 词： | 区域水土流失 算法设计 参数提取 GIS分布式 |
| 文章编号： | 1007-4929(2008)03-0031-03 |
| 修稿时间： | 2007-07-11 |
Preliminary Study on Regional Soil Erosion Model Design and Parameter Extraction Method |
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| CUI Yan,LI Rui,YANG Qin-ke. Preliminary Study on Regional Soil Erosion Model Design and Parameter Extraction Method[J]. Water Saving Irrigation, 2008, 0(3): 31-33 |
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| Authors: | CUI Yan LI Rui YANG Qin-ke |
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| Abstract: | Based on the existing regional experi mental research result,observation data and research achievement on the cause of soil erosion,according to the soil erosion mechanismon the slope,the regional soil erosion process was analyzed in this paper.Combining with the space analysis function of the GIS,the regional soil erosion model design was conducted preliminarily.Moreover,the extraction method for the parameters of the model and its precision requirement were also put forward.Application result of the model in Yanhe drainage basin reflected the time and spatial distribution tendency and difference of soil erosion,which was accordant with the reality. |
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| Keywords: | regional soil erosion algorithmdesign parameter extraction distributed GIS |
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