| 天然更新檫木林竞争规律研究 |
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| 引用本文： | 柳江,洪伟,吴承祯,何东进,毕晓丽,闫淑君.天然更新檫木林竞争规律研究[J].江西农业大学学报,2001,23(2):240-243. |
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| 作者姓名： | 柳江 洪伟 吴承祯 何东进 毕晓丽 闫淑君 |
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| 作者单位： | 福建林学院资源与环境系, |
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| 摘 要： | 通过对4种竞争指标的比较筛选，以Hegyi单木竞争指标地天然更新的檫木林种内和种间竞争强度进行了定量分析，结果表明，檫木种内竞争强度随胸径增大而逐渐减小，种间竞争强度大于种内竞争强度，竞争强度与檫木胸径之间存在显的双曲线非线性回归关系，天然更新檫木林竞争规律的研究不仅具有生态学价值，同时还可以为檫木母树林营造以及阔叶林天然更新技术完善提供有益的指导。
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| 关 键 词： | 檫木 种内竞争 种间竞争 竞争强度 竞争指标 天然更新林 |
| 文章编号： | 1000－2286(2001)02－0240-04 |
| 修稿时间： | 2000年10月8日 |
A Study on the Law of Competition in Naturally Regenerated Sassafras tzumu Forest |
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| LIU Jiang,HONG Wei,WU Cheng-Zhen,HE Dong-Jin,BI Xiao-li,YAN Shu-jun.A Study on the Law of Competition in Naturally Regenerated Sassafras tzumu Forest[J].Acta Agriculturae Universitis Jiangxiensis,2001,23(2):240-243. |
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| Authors: | LIU Jiang HONG Wei WU Cheng-Zhen HE Dong-Jin BI Xiao-li YAN Shu-jun |
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| Abstract: | A selected competition index was used to describe the law of competition in naturally regenerated Sassafras tzumu forest. The results showed that the intraspecific competition intensity of the trees reduced with the increase in diameter class and the interspecific competition was more intensive than intraspecific competition. A remarkable regression relationship between competition index and diameter class of the trees were established and used to predict the competition intensity. |
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| Keywords: | Sassafras tzumu intraspecific competition interspecific competition competition intensity competition index |
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