| 华南人工林凋落物养分及其转移 |
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| 引用本文： | 李志安,林永标,彭少麟.华南人工林凋落物养分及其转移[J].应用生态学报,2000,11(3):321-326. |
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| 作者姓名： | 李志安 林永标 彭少麟 |
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| 作者单位： | 1. 中国科学院华南植物研究所,广州,510650
2. 中国科学院广州分院,广州,510070 |
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| 基金项目： | 国家自然科学基金重大项目!(39899370 )，中国科学院重大项目!(KZ951 B1 1 1 0 )，中国科学院生态网络重大项目，中国科学院鹤山 |
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| 摘 要： | 对华南 5种人工林凋落物量、凋落物养分及绿叶养分含量的测定结果表明 ,各种人工林凋落物量大小依次为 :马占相思 (11.1t·hm-2 ) >湿地松 (7.3t·hm-2 ) >荷木 (6 .5t·hm-2 ) >大叶相思 (4.8t·hm-2 ) >柠檬桉(2 .6t·hm-2 ) .马占相思通过落叶回归土壤的养分量高于其它类型 .5种人工林均通过养分转移机制 ,大量从枯老叶中转移N、P、K养分 ,其中马占相思转移的养分量最大 ,营养转移的季节性差别较大 .各种人工林对其它元素的转移现象不确定 .
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| 关 键 词： | 人工林 凋落物 养分转移 森林生态系统 |
Nutrient content in litterfall and its translocation in plantation forests in south China |
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| LI Zhian,LIN Yongbiao,PENG Shaolin.Nutrient content in litterfall and its translocation in plantation forests in south China[J].Chinese Journal of Applied Ecology,2000,11(3):321-326. |
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| Authors: | LI Zhian LIN Yongbiao PENG Shaolin |
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| Institution: | South China Institute of Botany, Chinese Academy of Sciences, Guangzhou 510650. lizan@scib.ac.cn |
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| Abstract: | The amounts of litterfall, nutrient content in it and leaves of five plantation forests in south China were determined. The order of litterfall biomass was in sequence of Acacia mangium (11.1 t.hm-2) > Pinus elliotii (7.3 t.hm-2) > Schima superba (6.5 t.hm-2) > Acacia auriculaiformis (4.8 t.hm-2) > Eucalyptus citriodora (2.6 t.hm-2). A. mangium returned soil much more nutrient to soil through litterfall than other forests did. N, P and K were largely translocated from senescing leaves for all the five forests, and especially for A. mangium. Nutrient translocated varied greatly with seasons. The translocation of other elements was not definite. |
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| Keywords: | Plantation Litterfall Nutrient Nutrient translocation |
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