森林生态系统空心树研究进展

Research progress on the hollow-bearing trees in forest ecosystems

空心树是森林生态系统的一个重要结构,它在生物多样性保育方面发挥着重要作用,对于巢居动物显得更为关键。综合阐述了近年来空心树生态学研究进展,首先解释了空心树的界定和类型划分,分析了森林生态系统中生物因子、非生物因子和树木自生特性对空心树形成的作用,其次概述了空心树和树洞的丰富度与分配格局影响因素,最后分析了空心树对森林生态系统生物多样性保护的作用。

Hollow-bearing trees are key components of forest ecosystems,which play important roles in the biodiversity conservation,especially for hollow-dependent fauna.This paper describes the progress on the research of hollow-bearing trees over recent years.First,the paper explains the definition of hollow-bearing trees and types of tree hollow and the roles of biotic factors,abiotic factors and tree characteristics in the process of tree hollow formation in forests.Second,the paper summarizes the abundance and distribution of hollow-bearing trees and hollows.Finally,the paper presents the roles on biodiversity conservation of forest ecosystems.