Control Measures and Ecological Benefits on Sloping Farmland in a Small Watershed

CHEN Yun; HE Bing-hui; LUO Lei

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Control Measures and Ecological Benefits on Sloping Farmland in a Small Watershed

- Control Measures and Ecological Benefits on Sloping Farmland in a Small Watershed
- Bulletin of Soiland Water Conservation Vol. 29, Issue 2, Pages: 41-45(2010)
- 作者机构：
  
  1. 西南大学资源环境学院三峡库区生态环境教育部重点实验室,重庆,400715
  2. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
  3. 中煤国际工程集团重庆设计研究院,重庆,400016
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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CHEN Yun, HE Bing-hui, LUO Lei. Control Measures and Ecological Benefits on Sloping Farmland in a Small Watershed[J]. Bulletin of Soiland Water Conservation, 2010, 29(2): 41-45.
DOI：

CHEN Yun, HE Bing-hui, LUO Lei. Control Measures and Ecological Benefits on Sloping Farmland in a Small Watershed[J]. Bulletin of Soiland Water Conservation, 2010, 29(2): 41-45. DOI：

摘要

三峡库区铁炉沟小流域的坡耕地治理采用了坡改梯、经果林、水保林等措施。为了找出生态效益最佳的措施，在小流域内设置了19个简易径流小区，以顺坡耕作(玉米)为对照，对经果林(柑橘)、经果林(桑树)、水保林(松树)、水保林(白杨)、梯土(桃树+黑麦草)、梯土(玉米)等6种措施治理的坡耕地进行了对比试验。试验结果表明，梯土(桃树+黑麦草)的生态效益最佳，径流系数比对照措施减少了74.45%，产沙量比对照措施减少了90.39%，土壤容重最小(1.25g/m

)，总孔隙度最大(52.01%)，最大稳渗速率达到5.6mm/min，土壤有机质、全N、全P、全K和速效N、速效P、速效K的含量均最高。此外，调查研究也表明梯土(桃树+黑麦草)的经济效益最佳，高达13950元/hm

。所以，梯土(桃树+黑麦草)是可以在三峡库区推广的小流域坡耕地治理措施。

Abstract

In the management of sloping farmland in Tielugou small watershed in the Three Gorges Reservoir Region

measures such as terracing and forest were taken. In order to find out the measures with the best ecological benefits

19 runoff plots adopting 7 kinds of measures were established in the area by taking longitudinal farming (corn) as the contrast measure. Experimental results showed that terracing (peach + perennial ryegrass) gave the best ecological benefits. Other investigations also revealed that terracing (peach + perennial ryegrass) gave the best economic benefits

about 13 950 yuan/hm2. Therefore

terracing (peach + perennial ryegrass) was completely worthy of promotion in sloping land management in the Three Gorges Reservoir Resion.

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