山东农业大学学报（自然科学版）2025，Vol.56Issue(3)：525-535,11.DOI:10.3969/j.issn.1000-2324.2025.03.017
崂山针阔混交林林分结构与林木生长特征
Stand Structure and Tree Growth Characteristics of Needle and Broadleaved Mixed Forests in Laoshan Mountain
摘要
Abstract
Temperate needle and broadleaved mixed forests are typical vegetation in temperate areas in China,which plays an essential and irreplaceable role in the protection of the regional ecological environment.In order to explore the tree interaction and its impact on tree growth,this study investigated a 1 hm2 fixed forest plot and selected three species configuration combinations respectively in Beijiushui of Laoshan Mountain:Ⅰ with 100%evergreen conifer species,Ⅱwith 60%deciduous broadleaves+40%evergreen conifer species,and Ⅲ with 40%deciduous broadleaves+60%evergreen conifer species.The characteristics of the stand spatial structure,growth and the influence of the stand structure on stand growth are analyzed.The results are as follows:(1)The diameter distribution of the dominant tree species in this forest stand showed an obvious inverted"J"type curve or skewed normal distribution,revealing that the stand develops steadily.(2)The angular scales of different tree species configurations were mainly randomly distributed,and the mixing degree was weak.In the mixed configuration of needle-broadleaved tree species,the size ratio of 0 was relatively high.(3)There were significant differences in stand basal area and above-ground biomass in different tree species configurations(P<0.001),and the stand growth of mixed needle-broadleaved tree species configuration type was larger.(4)The smaller the size ratio or the higher the mixing degree,the larger was forest basal area and tree biomass of the stand.In conclusion,the mixed configuration of needle-broadleaved tree species can alleviate the competition among trees to a certain extent,enrich the size ratio of adjacent trees and the ratio of different species,and promote the forest succession and productivity.These findings should be paid attention to in forest management.关键词
林分空间结构参数/相邻木/生物量/断面积/树种配置Key words
Forest stand spatial structure parameters/adjacent trees/biomass/basal area/tree species configuration分类
林学引用本文复制引用
杨金明,王舶鉴,姜小蕾,卢慧翠..崂山针阔混交林林分结构与林木生长特征[J].山东农业大学学报（自然科学版）,2025,56(3):525-535,11.基金项目
国家自然科学基金(31800374) （31800374）
山东省自然科学基金(ZR2019BC083) （ZR2019BC083）
青岛科技惠民计划项目(23-2-8-cspz-10-nsh) （23-2-8-cspz-10-nsh）
