Spatial Analysis of Soil Erosion in Buhahe Watershed Based on RS and GIS

SHA Zhan-jiang; ZHANG Juan; SONG Chang-bin; TAO Bing-de; GUO Li-xia

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Spatial Analysis of Soil Erosion in Buhahe Watershed Based on RS and GIS

- Spatial Analysis of Soil Erosion in Buhahe Watershed Based on RS and GIS
- Bulletin of Soiland Water Conservation Vol. 31, Issue 6, Pages: 253-255(2012)
- 作者机构：
  
  1. 青海师范大学生命与地理科学学院青藏高原环境与资源教育部重点实验室
  2. 中国科学院青海盐湖研究所
  3. 青海盐湖工业股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
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SHA Zhan-jiang, ZHANG Juan, SONG Chang-bin, et al. Spatial Analysis of Soil Erosion in Buhahe Watershed Based on RS and GIS[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 253-255.
DOI：

SHA Zhan-jiang, ZHANG Juan, SONG Chang-bin, et al. Spatial Analysis of Soil Erosion in Buhahe Watershed Based on RS and GIS[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 253-255. DOI：

摘要

利用遥感和GIS的方法获得了流域内年降水量、年均气温、地形、土壤类型和土地覆被类型等5种评价因子数据

在GIS中通过建模及空间分析

获得了布哈河流域土壤侵蚀强度等级类型及空间分布信息。结果表明

研究区土壤侵蚀总面积是14 337km

其中轻度侵蚀和中度侵蚀面积居多

分别占土壤侵蚀总面积的54.88%和20.51%;剧烈侵蚀面积占土壤侵蚀总面积的0.63%。

Abstract

The technologies of RS and GIS were applied to obtain the five evaluation factors including annual precipitation

annual temperature

slope

elevation

and land cover within the Buhahe basin.With spatial modeling and analysis

we obtained spatial distribution of soil erosion within the basin and classified soil erosion into different classes.The results showed that in the study area

the total area of soil erosion was 14 337 km2

of which mild and moderate erosion were dominant

accounting for 54.88% and 20.51% of the total eroded area

respectively.A small portion of the basin has experienced severe erosion

accounts for 0.63% of the total eroded area.

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