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| 喀斯特山区退耕还林（草）保持水土生态效益研究 | |
| 引用本文： | 罗海波,钱晓刚,刘方,何腾兵,宋光煜.喀斯特山区退耕还林（草）保持水土生态效益研究[J].水土保持学报,2003,17(4):31-34,41. |
| 作者姓名： | 罗海波 钱晓刚 刘方 何腾兵 宋光煜 |
| 作者单位： | 1. 西南农业大学,资源环境学院,重庆,北碚,400700;贵州大学,生物与环境学院,贵州,贵阳,550025 2. 贵州大学,生物与环境学院,贵州,贵阳,550025 3. 西南农业大学,资源环境学院,重庆,北碚,400700 |
| 基金项目： | 国家重点科技攻关计划(2000-K01-04-06)，贵州大学人才基金资助 |
| 摘 要： | 通过3年定位、半定位观测,对贵州山区退耕还林(草)地进行采样并采用无界径流小区法收集地表径流样品,探讨贵州山区退耕还林(草)措施对贵州山区土壤养分流失以及水土保持效益的影响。试验结果表明:退耕还林(草)后旱坡地地表径流中泥沙含量降低,土壤养分流失减少,土壤容重降低,土壤理化性质改善。尤其是旱坡陡耕地,可以明显降低土壤侵蚀。 |
| 关 键 词： | 旱坡耕地 退耕还林(草) 水土保持 生态效益 |
| 文章编号： | 1009-2242(2003)04-0031-04 |
Ecological Benefit of Soil and Water Conservation in Hilly Areas by De farming and Reafforestation |
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| LUO Hai-bo.Ecological Benefit of Soil and Water Conservation in Hilly Areas by De farming and Reafforestation[J].Journal of Soil and Water Conservation,2003,17(4):31-34,41. | |
| Authors: | LUO Hai-bo~ |
| Institution: | LUO Hai-bo~ |
| Abstract: | Based on 3 years locating and semi-locating observation, the amount of soil loss in runoff from yellow soil of hilly areas by de farming and reafforestation in Guizhou province. The results showed: reduce the soil nutrient to runoff, improve soil physical properties, increase the soil hole capacities, reduce soil bulk density and reduce soil and water losses, can obviously lower the soil erosion. |
| Keywords: | dry sloping land de farming and reafforestation soil and water conservation ecological benefit |
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