鼎湖山锥栗种子扩散过程中死亡因素分析 |
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| 出 版 社：生态环境 |
| 发表时间：2006 |
| 台 站：
鼎湖山森林生态系统定位研究站
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| 作 者：杜彦君，彭闪江，徐国良，黄忠良 |
| 点 击 率：3499 |
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| 关 键 字：锥栗；种子取食；病原体：种子命运 |
| 摘 要：
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| 关 键 字(英文)：Castanopsis chinensis；seed predation；pathogen；seed fate |
| 摘 要(英文)：Majorfactors caused seeddeathofCastanopsis chinensisinthedispersal processwere studied．111eexperimentsincluded Open treatmen t group，Predation by birds experiments，Exclusion birds group，Exclusion small mammals experiments，and seed bag methods．The results showed that seeds were mainly predated by Curculio davidi and infected by pathogens，and the ratio of pred ation among three forest types had an obvious diference．The exclusion experiments suggested that seeds endured great pressure after dispersal by animal predation and pathogen infection．In Op en treatment group(oP)experiment，ratio of seed predation was up to 93．3％，while it was 92．4％ in the Exclusion birds group(EB)，but the seed predation rate by birds was only 80％．There was a diference betwen seed pred ation by non-mammals of thre forest types，but it was not significant．So great seed death rate is the major reason caused Castanopsis chinensis recruitment limitation． |
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 鼎湖山锥栗种子扩散过程中死亡因素分析_2006 生态环境 杜彦君.pdf |
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