| 红三叶人工草地群落营养元素积累量的分配与动态特征 |
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| 引用本文： | 杜占池,钟华平. 红三叶人工草地群落营养元素积累量的分配与动态特征[J]. 草业科学, 2002, 19(6): 24-26 |
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| 作者姓名： | 杜占池 钟华平 |
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| 作者单位： | 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 中国科学院南方山区草地生态系统研究站课题 |
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| 摘 要： | 红三叶群落5种营养元素积累量的分配，均为地上部＞地下部：叶＞茎＞花序。各界量动态曲线类型。各元素地上部均为单峰型；地下部：除Mg为单峰型外，其余均为双峰型。高峰出现的时期因元素种类而异。动态曲线的变动幅度，各元素均为地上部显著高于地下部。
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| 关 键 词： | 红三叶 人工草地群落 营养元素 积累量 动态特征 |
| 文章编号： | 1001-0629(2002)06-0024-03 |
The characteristics of allocation and dynamic on accumulated amount of nutrient elements in community of Trifolium pratense sown grassland |
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| DU Zhan chi,ZHONGHua ping. The characteristics of allocation and dynamic on accumulated amount of nutrient elements in community of Trifolium pratense sown grassland[J]. Pratacultural Science, 2002, 19(6): 24-26 |
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| Authors: | DU Zhan chi ZHONGHua ping |
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| Abstract: | The accumulatedamount to 5 nutrient elements in communityof Trifolium pratense sown grassland in aerial portion were higher than that in underground portion, and in leaf higher than in stem higher than in inflorescence. The types of dynamical curve of elements accumulated in aerial portion were all mono peak type, and those in underground portion were double peak type except Mg was mono peak type. The periods of occurring high peak were varied with different elements. Varying range of dynamical curve of aerial part was significantly wider than that of underground portion. |
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| Keywords: | Trifolium pratense community nutrient elements accumulated amount allocation dynamic |
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