摘要
为探究森林群落种间关联格局与物种生境偏好的关系,采用空间点格局分析方法和点过程模型,分析了浙江天童国家森林公园20 hm^2常绿阔叶林样地109个木本植物的种间关联格局及种-生境关联,结果表明:①天童样地中,种间负关联比例高于种间正关联,具有显著关联的种对比例随尺度增加而增加;②89.9%的物种至少与一类生境显著关联,73.4%的物种与生境显著正关联,65.1%的物种与生境显著负关联;③在较大尺度上(>20 m),种间空间关联结果与种对的生境偏好类型表现出很好的一致性,说明生境的异质性是形成较大尺度种间关联格局的重要原因;而在较小尺度上(<5 m),种间关联格局与种对的生境偏好没有明显关系,可能受到其他生态学过程的影响.研究结果为进一步探究常绿阔叶林物种的共存机制提供了理论依据.
The objective of this study was to clarify the relationship between interspecies associations and species habitat preferences in Tiantong National Forest Park.A total of 109 species of 20 hm^2 evergreen broad-leaved forest plots were selected and tested for interspecies associations and species-habitat associations.The results indicated that:①the ratio of species pairs with significant associations increased with spatial scale and the ratio of negative associations was higher than positive;②89.9%of species were significantly correlated with at least one habitat variable,including 73.4%of species positively and 65.1%of species negatively correlated with habitats;③at scales larger than 20 m,the results of interspecies associations were consistent with those of species pair habitat preferences;but at smaller scales(i.e.,<5 m),most species pairs did not show significant interspecies associations,indicating there are not habitat preferences but rather other ecological processes influencing interspecies association patterns.The results provide a theoretical basis for further understanding the mechanism of species coexistence in evergreen broad-leaved forests.
作者
杨庆松
刘何铭
朱彤彤
张首和
王希华
YANG Qingsong;LIU Heming;ZHU Tongtong;ZHANG Shouhe;WANG Xihua(Zhejiang Tiantong Forest Ecosystem National Observation and Research Station,School of Ecological and Environmental Sciences,East China Normal University,Shanghai 200241,China)
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第2期110-119,共10页
Journal of East China Normal University(Natural Science)
基金
国家自然科学基金重大国际合作项目(31210103920)
国家自然科学基金青年基金(31901103).
关键词
种间关联
生境偏好
点格局
尺度
木本植物
天童国家森林公园
interspecies association
habitat preference
point pattern
scale
wood plants
Tiantong National Forest Park
作者简介
第一作者:杨庆松,男,博士,工程师,研究方向为森林生态学.E-mail:qsyang@des.ecnu.edu.cn;通信作者:王希华,男,教授,博士生导师,研究方向为植被生态学、恢复生态学.E-mail:xhwang@des.ecnu.edu.cn
