| 云南元谋干热河谷区加勒比松人工林枯落物层的水土保持功能研究 |
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| 引用本文： | 郭玉红,郎南军,郑科,温绍龙,江期川.云南元谋干热河谷区加勒比松人工林枯落物层的水土保持功能研究[J].西部林业科学,2007,36(3):42-45. |
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| 作者姓名： | 郭玉红 郎南军 郑科 温绍龙 江期川 |
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| 作者单位： | 云南省林业科学院,云南,昆明,650204 |
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| 基金项目： | 国家“十五”攻关课题“干热河谷生态恢复技术与示范”第二子专题(2001BA606—07—01)。 |
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| 摘 要： | 对云南元谋干热河谷区加勒比松人工林枯落物层水土保持功能的模拟试验结果表明:该河谷区的加勒比松人工林枯落物层具有截留降雨的作用,其降水截留率可达73.48%,且滞缓林地地表径流的效果显著;厚度为3 cm的枯落物层能抑制林地土壤水分的蒸发率达54.5%;加勒比松人工林的枯落物层能防止林地土壤的击溅侵蚀,当枯落物层厚2.0 cm时,林地土壤的滴溅侵蚀业已停止。
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| 关 键 词： | 云南元谋 干热河谷区 加勒比松人工林 枯落物层 水土保持功能 |
| 文章编号： | 1672-8246（2007）03-0042-04 |
| 修稿时间： | 2007-02-13 |
A Study on Soil and Water Conservation Function of Litter Layer of Pinus caribaea Plantation in Yuanmou Dry and Hot Valley Areas |
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| GUO Yu-hong,LANG Nan-jun,ZHENG Ke,WEN Shao-long,JIANG Qi-chuan.A Study on Soil and Water Conservation Function of Litter Layer of Pinus caribaea Plantation in Yuanmou Dry and Hot Valley Areas[J].Journal of West China Forestry Science,2007,36(3):42-45. |
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| Authors: | GUO Yu-hong LANG Nan-jun ZHENG Ke WEN Shao-long JIANG Qi-chuan |
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| Institution: | Yannan Academy of Forestry., Kunming Yunnan 650204, P. R China |
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| Abstract: | The soil and water conservation function of litter of Pinus caribaea plantation in Yuanmou dry and hot valley was studied by simulation experiment.The experimental results indicate that the litter layer has the function of intercepting rainfall,the reaches 73.48 %,and the function of deterring surface runoff is significant.The 3 cm thick litter can restrain the soil water evaporation to 54.5 %.The litter layer is able to deter soil splashing erosion,when it reaches thick of 2.0 cm,the splashing erosion is stopped. |
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| Keywords: | dry and hot valley Pinus caribaea plantation litter layer soil and water conservation function |
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