Spatial Pattern Prediction of Soil Erosion in Small Typical Watersheds in Black Earth Region

ZHANG Shao-liang; LIU Wei; ZHANG Xing-yi; LIU Shuang; LI Xu-feng; LI Hao

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Spatial Pattern Prediction of Soil Erosion in Small Typical Watersheds in Black Earth Region

- Spatial Pattern Prediction of Soil Erosion in Small Typical Watersheds in Black Earth Region
- Bulletin of Soiland Water Conservation Vol. 32, Issue 4, Pages: 224-227(2013)
- 作者机构：
  
  1. 东北农业大学资源与环境学院,黑龙江,哈尔滨,150030
  2. 中国科学院东北地理与农业生态研究所,黑龙江,哈尔滨,150081
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
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ZHANG Shao-liang, LIU Wei, ZHANG Xing-yi, et al. Spatial Pattern Prediction of Soil Erosion in Small Typical Watersheds in Black Earth Region[J]. Bulletin of Soiland Water Conservation, 2013, 32(4): 224-227.
DOI：

ZHANG Shao-liang, LIU Wei, ZHANG Xing-yi, et al. Spatial Pattern Prediction of Soil Erosion in Small Typical Watersheds in Black Earth Region[J]. Bulletin of Soiland Water Conservation, 2013, 32(4): 224-227. DOI：

摘要

利用校正后的基于GIS的USLE模型预测了黑土区域土壤侵蚀量的空间分布格局。研究结果表明

研究区小流域年侵蚀量值范围在0~60t/(hm

无侵蚀、轻度侵蚀、中度侵蚀和强度侵蚀面积分别占研究区总面积的28.7%

56.2%

18.6%和0.1%。研究区坡顶土壤侵蚀量较少〔0~5t/(hm

a)〕

坡肩和坡背侵蚀量较大〔3~15t/(hm

a)〕。基于GIS的USLE不能够很好地模拟黑土区坡麓和坡足区域土壤沉积和侵蚀沟的空间分布格局

但可以较好地模拟坡顶、坡肩和坡背处的土壤流失状况。

Abstract

GIS-based USLE(Universal soil loss equation)was used to predict the spatial pattern of soil erosion in the black earth region of China.The primary results indicated that soil loss was 0~60t/(hm2 a)in the study area with the area of zero erosion

slight erosion

moderate erosion

intensity erosion

accounting for 28.7%

56.2%

18.6% and 0.1%respectively.The little soil loss occurred with 0~5t/(hm2 a)at the top of slope

big soil loss of 3~15t/(hm2 a)on the slope shoulder and back slope.GIS-based USLE can efficiently predicted soil loss distribution on top of the slope

slope shoulder and back slope other than the distribution of soil deposit and gullies at the foot of the slope.

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