| 松嫩平原两种碱蓬群落土壤种子库通量及幼苗死亡的分析 |
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| 引用本文： | 杨允菲,祝玲,张宏一.松嫩平原两种碱蓬群落土壤种子库通量及幼苗死亡的分析[J].生态学报,1995,15(1):66-71. |
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| 作者姓名： | 杨允菲 祝玲 张宏一 |
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| 作者单位： | 东北师范大学草地生态工程实验室 |
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| 摘 要： | 角碱蓬和翅碱蓬都是１ａ生耐碱性较强的藜科植物。在松嫩平原碱化草甸２个固定的单优碱蓬群落土壤中有活力种子的数量动态和种群动态的研究结果表明：土壤种子库存量在尚未萌发输出以前为最大，角碱蓬群落为２２２６０粒／ｍ＾２，翅碱蓬群落为３７２３０粒／ｍ＾２。整个生长季均有种子输出，２群落的种子库存率随着时间呈渐近形式规律地下降。现存植株数量角碱蓬种群以５月上旬最大，为１９４８０株／ｍ＾２，翅碱蓬则在４月上旬最
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| 关 键 词： | 种子库 种群动态 角碱蓬 翅碱蓬 松嫩平原 |
| 收稿时间： | 1993/3/29 0:00:00 |
| 修稿时间： | 8/6/1994 12:00:00 AM |
ANALYSIS ON THE FLUX OF SOIL SEED BANK AND THE SEEDLING MORTALITY IN THE COMMUNITIES OF TWO SPECIES OF SU AEDA IN THE SONGNEN PLAIN IN CHINA |
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| YANG Yunfei,ZHU Ling and ZHANG Hongyi.ANALYSIS ON THE FLUX OF SOIL SEED BANK AND THE SEEDLING MORTALITY IN THE COMMUNITIES OF TWO SPECIES OF SU AEDA IN THE SONGNEN PLAIN IN CHINA[J].Acta Ecologica Sinica,1995,15(1):66-71. |
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| Authors: | YANG Yunfei ZHU Ling and ZHANG Hongyi |
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| Institution: | Laboratory of Grassland Ecological Engineering .Northeast Normal University; Changchun; 130024 |
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| Abstract: | uaeda corniculata and S. heteroptera which are two more alkali-resisting and annotinousspecies of herb in Chenopodieceae growing in the alkalized meadow of the Songnen Plain inNortheast China were examined by random sampling on a periodical basis from their twofixed mono-dominant communities to investigate the changes in the storages of their viableseeds in soils and the dynamics of their populations . The results show that the viable seeds insolis have the greatest standing storage immediately before in... |
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| Keywords: | Soil seed bank population dynamics Suaeda corniculata Suaeda heteroptera the Songnen Plain |
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