| 鼎湖山季风常绿阔叶林的水文学过程及其氮素动态 |
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| 引用本文： | 黄忠良,丁明懋.鼎湖山季风常绿阔叶林的水文学过程及其氮素动态[J].植物生态学报,1994,18(2):194-199. |
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| 作者姓名： | 黄忠良 丁明懋 |
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| 作者单位： | 中国科学院华南植物研究所鼎湖山树木园，中国科学院华南植物研究所 |
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| 摘 要： | 本文对鼎湖山南亚热带季风常绿阔叶林—黄果厚壳桂(Cryptocarya coneinna)、鼎湖钓樟(Lindera chunii)群落的水文学过程以及水系统中的氮素动态特征进行了初步研究。结果显示：所研究的群落中雨水输入的氮量较高，达35.57kg·ha-1，但渗入土壤及地表径流输出的氮也多，分别为18.28和9.25kg·ha-1·yr-1，输入输出之差为8.04kg·ha-1·yr-1。雨水对林冠的氮素淋溶量为4.72kg·ha-1·yr-1。通过回归分析，发现各类型水中含氮量与降雨量之间存在较显著的直线相关关系。不同树种的树干茎流中氮浓度存有差别。
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| 关 键 词： | 季风常绿阔叶林 水文学 氮 |
THE HYDROLOGICAL PROCESSES AND NITROGEN DYNAMICS IN A MONSOON EVERGREEN BROAD-LEAFED FOREST OF DINGHU SHAN |
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| Huang Zhong-liang.THE HYDROLOGICAL PROCESSES AND NITROGEN DYNAMICS IN A MONSOON EVERGREEN BROAD-LEAFED FOREST OF DINGHU SHAN[J].Acta Phytoecologica Sinica,1994,18(2):194-199. |
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| Authors: | Huang Zhong-liang |
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| Abstract: | The hydrological processes and nitrogen dynamics of a small watershed were studied in a monsoon evergreen broad-leafed forest of Dinghu Shah Biosphere Reserve. The results showed that the hydrology of this forest had distinct characteristics. The nitrogen input by rainfall was 35.57kg·ha-1 and the output in surface runoff was 9.25kg·ha-1 in a year. 4.72kg·ha-1·yr-1 of nitrogen was leached out from the canopy by rain. The nitrogen concentrations in stemflow of different species were different. The regression equations of nitrogen contents in each component of the hydrological cycle and the monthly rainfall were set up. |
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| Keywords: | Monsoon forest Hydrological processes Nitrogen |
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