| 杉木-观光木人工混交林竞争及邻体干扰指数研究 |
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| 引用本文： | 封磊,洪伟,吴承祯,宋萍. 杉木-观光木人工混交林竞争及邻体干扰指数研究[J]. 应用与环境生物学报, 2007, 13(2): 196-199 |
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| 作者姓名： | 封磊 洪伟 吴承祯 宋萍 |
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| 作者单位： | 1. 福建农林大学,资源与环境学院,福州,350002
2. 福建农林大学,林学院,福州,350002 |
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| 基金项目： | 国家自然科学基金;福建省自然科学基金 |
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| 摘 要： | 将杉木和观光木人工混交林中林木竞争影响空间划分为内、外两圈,在此基础上将竞争指数分解为不同的邻体干扰指数,对象木生长量与3种干扰指数的回归分析表明,以杉木为对象木时,利用张大勇提出的干扰指数模型(Izdy)效果最好;以观光木为对象木时,利用Weiner提出的干扰指数模型(Iwg)效果最好.同时,竞争强度研究表明,杉木种内竞争>杉木观光种间竞争>观光木种内竞争.通过对几种竞争影响的划分比较,说明将竞争空间分为内、外两圈能较好地反应林木的竞争规律.表3参17
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| 关 键 词： | 杉木 观光木 竞争 邻体干扰 |
| 收稿时间： | 2005-10-31 |
| 修稿时间： | 2006-01-23 |
Competition and Neighborhood Interference Index of Cunninghamia lanceolata Plantation Mixed with Tsoongiodendron odrum |
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| FENG Lei,HONG Wei,WU Chengzhen,SONG Ping. Competition and Neighborhood Interference Index of Cunninghamia lanceolata Plantation Mixed with Tsoongiodendron odrum[J]. Chinese Journal of Applied and Environmental Biology, 2007, 13(2): 196-199 |
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| Authors: | FENG Lei HONG Wei WU Chengzhen SONG Ping |
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| Affiliation: | 1.Resouree and Environment College, 2.Forestry College, Fujian Agrieulture and Forestry University, Fuzhou 350002, China |
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| Abstract: | The competition influence zone of Cunninghamia lanceolata(Lamb.)Hook plantation mixed with Tsoongiodendron odrum Chun was divided into two parts:one was defined as inside radius,and the other as outside radius.Base on this,the competition index could be decomposed into different neighborhood interference indexes.The regression analysis of objective tree's growth and three kinds of interference indexes was studied.The results showed that if the objective tree was C.lanceolata,Zhang Dayong's interference index model could obtain the best result,while if the objective tree was T.odrum,Weiner's model was better comparing with the other competition models.The study still showed that the intraspecific competition of C.lanceolata > the interspecific competition of C lanceolata and T.odrum > the intraspecific competition of T.odrum.The comparison of different kinds of competition influence division indicated the model that divided the competition zone into two parts could show the competition rules accurately.Tab 3,Ref 17 |
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| Keywords: | Cunninghamia lanceolata (Lamb.)Hook Tsoongiodendron odrum Chun competition neighborhood interference |
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