| 基于DEM的USLE土壤侵蚀方程地形因子获取与分析 |
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| 引用本文： | 隋欣,王维芳.基于DEM的USLE土壤侵蚀方程地形因子获取与分析[J].测绘工程,2010,19(5):20-23. |
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| 作者姓名： | 隋欣 王维芳 |
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| 作者单位： | 东北林业大学,黑龙江,哈尔滨,150040;东北林业大学,黑龙江,哈尔滨,150040 |
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| 摘 要： | 坡长和坡度是研究水土流失问题中必须要考虑的重要地形因子,坡长的空间分布特征和规律、地貌发育对坡长的影响,以及坡长与坡度之间的关系,是研究水土流失、侵蚀规律的重要条件之一。利用GIS以及相关软件为平台,在黑龙江省通河地区建立USLE水土流失方程模型,研究LS因子在水土流失中的影响以及作用,并探讨DEM数据分辨率变化对LS值的影响。
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| 关 键 词： | 土壤侵蚀方程 DEM LS因子 水土流失 影响 |
Extraction and analysis of terrain factors in USLE based on DEM |
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| SUI Xin,WANG Wei-fang.Extraction and analysis of terrain factors in USLE based on DEM[J].Engineering of Surveying and Mapping,2010,19(5):20-23. |
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| Authors: | SUI Xin WANG Wei-fang |
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| Institution: | SUI Xin; WANG Wei-fang(Northeast Forestry University; Harbin 150040; China); |
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| Abstract: | The most important terrain factors of soil erosion problems that we must consider are slope length and gradient.The important conditions of studying soil erosion and the discipline of erosion are the characteristics and rule of directional distribution of slope length,the influence of landform evolution on slope length,and the relationship between slope length and gradient.Based on GIS and related software platform,this paper established USLE soil erosion equation model of Tonghe area in Heilongjiang.It stu... |
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| Keywords: | USLE DEM LS soil erosion influence |
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