| 连栽杉木林地土壤肥力退化的症结 |
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| 引用本文： | 何光训.连栽杉木林地土壤肥力退化的症结[J].浙江林学院学报,2002,19(1):100-103. |
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| 作者姓名： | 何光训 |
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| 作者单位： | 浙江林学院,资源与环境系,浙江,临安,311300 |
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| 摘 要： | 杉木连栽引起林地土壤肥力退化的机理。尚未定论。腐殖质含量是衡量土壤肥力的重要指标。根据腐殖质生物化学形成理论、酶学以及林地的研究现状，认为林地土壤中氨基酸的缺乏是导致连栽杉木林地土壤肥力退化的症结。阔叶树种在杉阔混交林中具有增氮和调节碳氮化作用，退化点和作用点彼此互为佐证。参25
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| 关 键 词： | 杉木 连栽 土壤肥力退化 氨基酸 阔叶树 杉阔混交林 土壤培肥 |
| 文章编号： | 1000-5692(2002)01-0100-04 |
Degeneration of soil fertility in pure Chinese fir succession |
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| HE Guang,xun.Degeneration of soil fertility in pure Chinese fir succession[J].Journal of Zhejiang Forestry College,2002,19(1):100-103. |
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| Authors: | HE Guang xun |
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| Abstract: | Pure Chinese fir succession can result in the degeneration of soil fertility.Because the mechanism of degeneration of soil fertility in pure fir Chinese succession is unknown,there is not a conclusion about it yet.According to the theory that humus content is the important index to measure the soil fertility,the formation theory of humus biochemistry,and the present research on the situation of the forest land.The lack of amino acid is crucial point of degeneration of soil fertility in pure Chinese fir succession.The broad leaved tree in mixed forest can add nitrogen and adjust the ration of carbon to nitrogen.The broad leaved tree in mixed forest of Chinese fir and broad leaved tree can help to increase amino acid and make up for the degeneration of soil fertility. |
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| Keywords: | Chinese fir succession degeneration of soil fertility amino acid broad leaved trees mixed forest of Chinese fir and broad leaved trees |
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