Study on Benef its of Soil and Water Conservation about Returning Cropland to Forest in Loessy Hilly Region of North Shaanxi

YANG Guang; DING Guo-dong; ZHAO Ting-ning; SUN Bao-ping

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Study on Benef its of Soil and Water Conservation about Returning Cropland to Forest in Loessy Hilly Region of North Shaanxi

- Study on Benef its of Soil and Water Conservation about Returning Cropland to Forest in Loessy Hilly Region of North Shaanxi
- Bulletin of Soiland Water Conservation Vol. 25, Issue 2, Pages: 88-90(2006)
- 作者机构：
  
  北京林业大学水土保持学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
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- Published：2006
- 稿件说明：
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YANG Guang, DING Guo-dong, ZHAO Ting-ning, et al. Study on Benef its of Soil and Water Conservation about Returning Cropland to Forest in Loessy Hilly Region of North Shaanxi[J]. Bulletin of Soiland Water Conservation, 2006, 25(2): 88-90.
DOI：

YANG Guang, DING Guo-dong, ZHAO Ting-ning, et al. Study on Benef its of Soil and Water Conservation about Returning Cropland to Forest in Loessy Hilly Region of North Shaanxi[J]. Bulletin of Soiland Water Conservation, 2006, 25(2): 88-90. DOI：

摘要

在野外调查和试验小区观测的基础上

对吴旗县退耕还林所取得的水土保持效益进行了定量分析和研究

结果表明

通过退耕还林、封山禁牧

吴旗县植被覆盖率得到了明显提高

极大地改善了土壤的理化性质

植被群落趋于稳定

水土流失现象得到有效遏制.由此可见退耕还林、封山禁牧是治理黄土丘陵沟壑区水土流失的有效途径.

Abstract

On the basis of investigation in the field and observation in experimental stations

the benefits of soil andwater conservation about returning cropland to forest in Wuqi County are analyzed and studied quantitatively.Results show that vegetation coverage is obviously increased by returning cropland to forest and grazing prohibition inmountains

physical and chemical characters of soils are greatly improved

vegetation communities are becomingstable gradually

and the amount of soil and water loss is kept within limits.Thus it can be seen that measures ofreturning cropland to forest and grazing prohibition in mountains are the effective approach to control soil and waterloss in loessy hilly region.

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