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黄土丘陵沟壑区退耕还林的水土保持效益研究--以陕西省吴旗县为例
引用本文:杨光,丁国栋,赵廷宁,孙保平,赫登耀.黄土丘陵沟壑区退耕还林的水土保持效益研究--以陕西省吴旗县为例[J].内蒙古农业大学学报(自然科学版),2005,26(2):20-23.
作者姓名:杨光  丁国栋  赵廷宁  孙保平  赫登耀
作者单位:1. 北京林业大学水土保持学院,北京,100083
2. 陕西省吴旗县林业局,陕西,吴旗,717600
基金项目:教育部科学技术研宠重大项目(10407);长江上游、黄河上中游退耕还林(草)国家林业局领导科技示范点工程.
摘    要:本文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钯性质,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。

关 键 词:黄土丘陵沟壑区  退耕还林  水土保持效益
文章编号:1009-3575(2005)02-0020-04
收稿时间:2004-12-08
修稿时间:2004年12月8日

STUDY ON THE EFFECTS OF RETURNING CROPLAND TO FOREST IN LOESSY HILLY REGION ON SOIL AND WATER CONSERVATION--Taking Wuqi County in Shaanxi Province as an Example
YANG Guang,DING Guo-dong,ZHAO Ting-ning,SUN Bao-ping,HE Deng-yao.STUDY ON THE EFFECTS OF RETURNING CROPLAND TO FOREST IN LOESSY HILLY REGION ON SOIL AND WATER CONSERVATION--Taking Wuqi County in Shaanxi Province as an Example[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),2005,26(2):20-23.
Authors:YANG Guang  DING Guo-dong  ZHAO Ting-ning  SUN Bao-ping  HE Deng-yao
Abstract:On the basis of investigation in the field and observation in experimental plots, the effects of returning cropland to forest in Wuqi Countyon soil and water conservation were analyzed and studied quantitatively. The resuits showed that the vegetation coverage was obviously increased by returning cropland to forest and grazing prohibition in mountains, the physical and chemical character of the soil were greatly improved, vegetation communities were becoming stable gradually, and the phenomenon of water and soil loss was kept within limits. Thus it can be seen that measures of returning cropland to forest and grazing prohibition in mountains are the effective approach to control soil and water loss in loess hilly region.
Keywords:loess hilly areas  returning cropland to forest  effect of water and soil conservation
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