| 西双版纳热带季节雨林林冠下及林窗中土壤养分对比研究 |
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| 引用本文： | 沙丽清,曹敏.西双版纳热带季节雨林林冠下及林窗中土壤养分对比研究[J].东北林业大学学报,1999,27(6):78-80. |
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| 作者姓名： | 沙丽清 曹敏 |
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| 作者单位： | 中国科学院西双版纳热带植物园,昆明,650223 |
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| 基金项目： | 中国科学院重点支持项目!KZ952-S1-101，云南省自然科学基金!97C017R |
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| 摘 要： | 研究了西双版纳热带季节雨林林窗形成对土壤养分的影响。结果表明，季节要林冠下土壤的有机质，全氮，全有效磷和硝化速度（以ＮＯ３－Ｎ计，分别为２．７１％，０．１４０％〈０．０７７％，１４．５６ｍｇ．ｋｇ＾－１和１６．２８ｍｇ．ｋｇ＾－１．月＾－１）都显著地高于林窗下的土壤（分别为１．３２％，０．０９３％，０．０４７％，３．８４ｍｇ．ｋｇ＾－１ｔ －２．７８ｍｇ．ｋｇ＾－１．月＾－１）。但对于氮净矿化速度
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| 关 键 词： | 热带季节雨林 林窗 氮矿化 硝化 磷 |
Nutrients in Treefall Gap of Tropical Seasonal Rainforest in Xishuangbanna |
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| Sha Liqing,Cao Min.Nutrients in Treefall Gap of Tropical Seasonal Rainforest in Xishuangbanna[J].Journal of Northeast Forestry University,1999,27(6):78-80. |
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| Authors: | Sha Liqing Cao Min |
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| Abstract: | The influence of gap formation on soil nutrients in tropical seasonal rainforest in Xishuangbanna,southwest China was studied. The results showed that organic matter, total nitrogen, total phosphorus.available phosphorus and nitrification rate in the intact forest were all significantly higher (P<0. 001)than those in the gap. But net N mineralization, ammonification rates- NO3-N and NH4-N concentra-tion had no significant difference between the two sites. |
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| Keywords: | Tropical seasonal rainforest Forest gap N mineralization Nitrification Phosphorus |
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