摘要
在调查不同海拔资源空间的杉木天然混交林 1 70块样地的基础上 ,采用生态位空间分割法与Lotka-Volterra竞争模型 ,分析杉木与主要的 1 9个伴生树种的生态位和竞争关系。结果表明 :在杉木天然混交林中 ,杉木和伴生树种的生态位宽度与生态位重叠既有较大的也有较小的。不同伴生树种与杉木的竞争结局是不一样的 ,从现阶段杉木与伴生树种的最终竞争结局来看 ,可认为该群落中杉木与伴生树种的种间关系离稳定阶段尚有一定距离。
Base on 170 plots of Chinese fir nature mixed stand which were in different altitude resource spaces,the niche and competition relationship between Chinese fir and its 19 main associated species in Chinese fir nature mixed stand were analyzed by using the method of niche space compartmentalization and Lotka-Volterra competition model,the results showed that:the niche breadth values and the niche overlap values of Chinese fir and its associated species in Chinese fir natural mixed stand varied in a certain range, the resuts of the competition between Chinese fir and its associated species differed with associated species. Seen from the final results of the competition between Chinese fir and its associated species in the current stage,it could be concluded that there was a distance from a steady state of the interspecies relationship between Chinese fir and its associated species in the communities.
出处
《江西农业大学学报》
CAS
CSCD
2003年第3期369-373,共5页
Acta Agriculturae Universitatis Jiangxiensis
基金
福建省科学技术委员会科学基金资助项目 ( 97-Z -2 1 9)
福建省自然科学基金资助项目 (C880 2 1 )
关键词
海拔
杉木
伴生树种
生态位
种间竞争
Chinese fir
associated species
niche
altitude
interspecies competition
