| 江西省不同林型下枯枝落叶分解和养分释放的动态 |
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| 引用本文： | 吴蔚东,刘仁林.江西省不同林型下枯枝落叶分解和养分释放的动态[J].江西农业大学学报,1996,18(1):61-66. |
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| 作者姓名： | 吴蔚东 刘仁林 |
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| 作者单位： | 江西农业大学农学院，江西省井岗山自然保护区 |
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| 摘 要： | 研究表明：（１）江西省不同林型的枯枝落叶分解损失率表现为常绿阔叶林〉杉阔混交〉纯杉木林，其可用数学模型进行描述。（２）在枯枝落叶的分解过程中，其Ｋ的含量不断下降，其它养分的含量则不断上升；随着分解的进行，所有营养元素的损失率都不断增加，损失率最大的为Ｋ，Ｃａ，Ｎ，Ｍｇ等元素。（３）分解过程中，不同林 型的枯枝落叶中营养元素的含量和损失率有明显的差异，始终表现为常绿阔叶林〉杉阔混交林〉纯杉木林。
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| 关 键 词： | 森林类型 枯枝落叶 分解 营养元素 |
A STUDY ON LITTER DECOMPOSITION AND THE DYNAMIC STATE OF NUTRIENT RELEASE OF DIFFERENT TYPES OF FOREST IN JIANGXI PROVINCE |
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| Wu Weidong,Huan Chunchang,Liu Renling,XuQingzhu,Wang Jingining,Chen Shuzhen.A STUDY ON LITTER DECOMPOSITION AND THE DYNAMIC STATE OF NUTRIENT RELEASE OF DIFFERENT TYPES OF FOREST IN JIANGXI PROVINCE[J].Acta Agriculturae Universitis Jiangxiensis,1996,18(1):61-66. |
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| Authors: | Wu Weidong Huan Chunchang Liu Renling XuQingzhu Wang Jingining Chen Shuzhen |
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| Abstract: | The results of this study show that:(1)the litter lose rates of different forest types appearas ever-green broad-leavedbrest > ever-green broad-leaved and Chinese Fir mixed forest>Chinese Fir forest in their decomposition processes,which can be described in the model,(2)with the proceeding of the litter decompositinn,the K contents in litter decrease but those of allthe other 10 nutrients increase,meanwhile,the loss rates of alI nutrients increase continuouslywithin which K,Ca,N,and Mg loss most in quantity,(3)in the process of litter decomposi-tion,the contents and foss rates of various nutrients in different forest litter difler remarkably,they always appear as:ever-green broad-leaved forest>ever-green broad-leaved and Chi-nese Fir mixed forest>Cmnese Fir forest. |
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| Keywords: | forest type litter decomposition nutrient |
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