| 黄土高原人工油松林水文生态效应 |
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| 引用本文： | 赵鸿雁,吴钦孝,刘国彬.黄土高原人工油松林水文生态效应[J].生态学报,2003,23(2):376-379. |
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| 作者姓名： | 赵鸿雁 吴钦孝 刘国彬 |
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| 作者单位： | 中国科学院水土保持研究所,陕西杨凌,712100 |
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| 基金项目： | 国家自然科学基金资助项目 ( 40 1 71 0 93)，中国科学研究院重大知识创新资助项目 ( KZCXI-0 6-0 1 -0 3)~~ |
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| 摘 要： | 在陕北黄龙山区利用对降水和设置在林分中的径流小区进行长期定位观测的方法，研究了黄土高原主要造林树种油松林的水文生态效应，据1995-2000年观测结果，中龄人工油松林林冠平均截留率为25.1％，树干茎流量占大气降水量的3.3％，枯枝落叶层的截留率为11.6％。在森林的作用下，林地土壤的理化性质得到了明显的改善。与农地相比，林地容重低8.6％，有机质含量、全氮含量和阳离子代换量分别高130.1％、84.2％和53.2％，细土颗粒组分比例增加。与此同时，林地地表径流量和土壤侵蚀量则分别减少84.5％和99.9％，表明了人工油松林巨大的水文生态作用。
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| 关 键 词： | 黄土高原 人工油松林 水文生态效应 水文效益 |
| 文章编号： | 1000-0933(2003)02-0376-04 |
| 收稿时间： | 2001/7/29 0:00:00 |
| 修稿时间： | 2002/4/28 0:00:00 |
Studies on hydro-ecological effects of artificial Chinese pine stand in Loess Plateau |
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| ZHAO Hongyan,WU Qinxiao and LIU Guobin.Studies on hydro-ecological effects of artificial Chinese pine stand in Loess Plateau[J].Acta Ecologica Sinica,2003,23(2):376-379. |
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| Authors: | ZHAO Hongyan WU Qinxiao and LIU Guobin |
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| Institution: | Institute of Soil and Water Conservation; Chinese Academy of Sciences and Ministry of Water Resources; Shaanxi; Yangling; 712100 |
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| Abstract: | Chinese pine (Pinus tabulaeformis Carr.) is widely distributed in the Loess Plateau and is one of the main species for afforestation in the region. In order to expound the role of its stand in controlling serious soil and water losses and the mechanism of the role a study on the hydro-ecological effects of the stand, including its canopy, litter and root system is carried out in the period from 1995 to 2000, using the long term observation on rainfall and runoff plots set up in its stand and the method of... |
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| Keywords: | Loess Plateau artificial Chinese pine hydro-ecological effect |
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