| 海南岛尖峰岭热带林生态系统的水化学特征 |
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| 引用本文： | 卢俊培.海南岛尖峰岭热带林生态系统的水化学特征[J].林业科学研究,1991(3). |
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| 作者姓名： | 卢俊培 |
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| 作者单位： | 中国林业科学研究院热带林业研究所 |
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| 摘 要： | 本文根据对降水、穿透水及林区溪水水质的动态观测分析,探讨了海南岛尖峰岭半落叶季雨林-砖红壤-花岗闪长岩、黑云母花岗岩及山地雨林-砖黄壤-似斑状(钾长石)花岗岩两个植被-土壤-基岩体系的水化学性状、季节变化及水化学平衡特点。文章指出,降水和穿透水是热带林生态系统主要的元素输入源,森林生态系统具有较强的水化学过滤、吸贮功能,元素的输出率可以大大降低,保持物质循环的封闭式平衡状态。山地雨林生态系统的水化学调节功能优于半落叶季雨林生态系统。
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| 关 键 词： | 热带林生态系统 降水 穿透水 溪水 水化学特征 |
Hydrochemical Characteristics on Tropical Forest Ecosystems in Jianfengling, Hainan Island, China |
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| Lu Junpei.Hydrochemical Characteristics on Tropical Forest Ecosystems in Jianfengling, Hainan Island, China[J].Forest Research,1991(3). |
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| Authors: | Lu Junpei |
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| Affiliation: | The Research Institute of Tropical Forestry CAF |
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| Abstract: | The hydrochemical properties, seasonal changes and their balance of both semi-deciduous monsoon forest-latosol-granodiorite, granitite and mountain rain forest-lateritic yellow soil-potassium feldspar granite systems were studied at Jianfengling, Hainan Island, China based on the observations and chemical analyses on the major elements of precipitation, throughfall and stream. Elements content of the throughfall increased by 0.3 ~2.8 times more than that of the precipitation. More leaching quantity was found in the semideciduous monsoon forest than that of the mountain rain forest particularly K and N the most, and the leaching loss of Ca was less than the surface uptake of the plants in the mountain rain forest. The elements content of the stream were also less than that of the throughfall. The output content is more than input both in the Si, Ca, Mg and dried residue for the semi-deciduous monsoon forest and the Si, total acidity and total alkainity for the mountain rain forest. There are obviously seasonal changes in various hydro-elements content with seasonal changes of rainfall and forest plants and solubility of elements. It is pointed out that the precipitation and throughfall are an input source of the important elements of the tropical forest ecosystem, which has stronger function on the filtration, uptake and store. It is clear that hydrochemical regulating function of the mountain rain forest ecosystem is superior to that of the semi-deciduous monsoon forest ecosystem. |
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| Keywords: | tropical forest ecosystem precipitation throughfall stream hydrochemical characteristics |
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