ZHONG Xia,XUE Chong-sheng.The Processing of Terrain Factors Based on the Grid Module and Its Applying to Estimating Soil Erosion[J].Research of Soil and Water Conservation,2004,11(01):92-94.
基于栅格模块地形因子提取及其水土流失评价中的应用——以湖北省房县水土流失评价为例
- Title:
- The Processing of Terrain Factors Based on the Grid Module and Its Applying to Estimating Soil Erosion
- Keywords:
- ARC/INFO; grid module; soil eroison; terrain factor
- 分类号:
- TP79;S157
- 摘要:
- 以湖北房县为例，在ARC/INFO的栅格模块支持下，利用1：25万的栅格数字高程模型（DEM）数据，对水土流失中地形因子进行了分析，从中提取了坡度、坡向、坡形等地形因子图，完成了水土流失地形因子的数据库及其制图；在此基础上结合水土流失其它几个因子影响特征，初步估算了房县水土流失量。
- Abstract:
- Taking Fang County in Hubei Province as a test area and by the support of the grid module of ARC/INFO geographic imformation system, the terrain factor in soil erosion was analysed from the 1:25 DEM which was expressed by grid.And then,the map of slope, aspect and terrain can be drawn and the data of terrain can be finished. Last, according to the charcateristic of the terrain factor,the soil erosion amount in Fang County can be predicted.
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备注/Memo
收稿日期:2003-8-5。
作者简介:钟霞（1978- ），女，湖南邵阳人，中国地质大学（武汉）3S集成技术实验室在读研究生，主要研究方向为3S技术综合应用.