Effects of Eco-environmental Construction Projects on Soil and Water Loss in Huangshui River Basin

BAI Xiong-xiong; YAN Chang-zhen

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Effects of Eco-environmental Construction Projects on Soil and Water Loss in Huangshui River Basin

- Effects of Eco-environmental Construction Projects on Soil and Water Loss in Huangshui River Basin
- Bulletin of Soiland Water Conservation Vol. 32, Issue 3, Pages: 217-219(2013)
- 作者机构：
  
  1. 中国科学院寒区旱区环境与工程研究所,甘肃,兰州,730000
  2. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：
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- Published：2013
- 稿件说明：
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BAI Xiong-xiong, YAN Chang-zhen. Effects of Eco-environmental Construction Projects on Soil and Water Loss in Huangshui River Basin[J]. Bulletin of Soiland Water Conservation, 2013, 32(3): 217-219.
DOI：

BAI Xiong-xiong, YAN Chang-zhen. Effects of Eco-environmental Construction Projects on Soil and Water Loss in Huangshui River Basin[J]. Bulletin of Soiland Water Conservation, 2013, 32(3): 217-219. DOI：

摘要

选择湟水河流域为研究区

以2000年与2009年的Landsat TM/ETM数据为信息源提取土地覆盖以及植被覆盖度信息

结合Aster DEM数据

在地理信息系统技术的空间分析功能的支持下

依据水利行业《土壤侵蚀分类分级标准》(SL190—2007)

通过叠加分析研究区近10a生态环境建设工程的水土保持效应。结果表明

10a中湟水河流域坡面侵蚀有所减弱

2009年微度以上侵蚀相比2000年少了309.11km

但沟谷侵蚀强度趋于增强

10a净增加706.87km

。研究表明目前工程措施对于治理面蚀效果明显

对于沟蚀作用不明显。

Abstract

Effects of eco-environmental construction projects on soil and water loss from 2000to 2009were studied by taking the Huangshui River basin as the study area.Landsat TM/ETM data of 2000and 2009 were used to derive the data of land cover and vegetation in combination with the Aster DEM.The study was conducted by the“Standards for Classification and Gradation of Soil Erosion” (SL190-2007)and with the support of GIS techniques.Results showed that soil erosion on slope in the Huangshui River basin was reduced somewhat in the last ten years.The intermediate and above soil erosion in 2009was reduced by 309.11km2 as compared with that in 2000

but gully erosion tended to increase

with a net increase of 706.87km2.This illustrates that the engineering measures are effective to soil erosion on slope

but insignificant to gully erosion.

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