Study on Function and Value of Water Conservation in Different Age Classes of Acacia mangium Plantations

HE Bin; QIN Wu-ming; DAI Jun; LIU Feng; HUANG Yong

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Study on Function and Value of Water Conservation in Different Age Classes of Acacia mangium Plantations

更新时间：2024-11-07

- Study on Function and Value of Water Conservation in Different Age Classes of Acacia mangium Plantations
- Vol. 20, Issue 5, Pages: 5-8(2006)
- 作者机构：
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  CLC： S714S715.7
- Published：2006
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HE Bin, QIN Wu-ming, DAI Jun, et al. Study on Function and Value of Water Conservation in Different Age Classes of Acacia mangium Plantations[J]. 2006, 20(5): 5-8.
DOI：

HE Bin, QIN Wu-ming, DAI Jun, et al. Study on Function and Value of Water Conservation in Different Age Classes of Acacia mangium Plantations[J]. 2006, 20(5): 5-8. DOI：

摘要

对马占相思人工林3个不同年龄阶段（4，7a和11a）的林冠层、林下植被层、枯枝落叶层、林地土壤持水量和渗透性能以及它们随林分年龄的变化规律进行了比较分析。研究结果表明，林分地上部分持水量的大小顺序为11a生（52．86t／hm^2）〉7a生（41．90t／hm^2）〉4a生（25．78t／hm^2），其趋势是随林龄的增大而增加，林地土壤（0～40cm）持水量和渗透性能也有相同的变化趋势；4，7a和11a林分的总持水量即地上部分与林地土壤的持水总量分别为2048．8，2200．3，2313．3t／hm^2，林分水源涵养总价值分别为1372．70，1474．42元／hm^2和1549．91元／hm^2。因此，马占相思人工林对改善土壤结构、提高水源涵养功能都有良好的作用。

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