北华大学学报（自然科学版）2024，Vol.25Issue(5)：573-580,8.DOI:10.11713/j.issn.1009-4822.2024.05.003
紫椴红松林群落主要乔木树种种间关系
Interspecific Relationships of Main Tree Species in the Mixed Forest Community of Tilia amurensis and Pinus koraiensis
摘要
Abstract
The interspecific relationships among the main trees in Tilia amurensis and Pinus koraiensis forest in Administration of Songhua River Sanhu National Nature Reserve,Jilin Province were analyzed by using various statistical methods including the overall correlation test(VR),χ2 test,association coefficient(AC),percentage of co-occurrence(PC),and point correlation coefficient(Ф)across five levels(seedling I,sapling Ⅱ,small diameter tree Ⅲ,medium diameter tree Ⅳ and tree classⅤ).The results indicated a significantly positive overall correlation among the main tree species,with VR values ranging from 0.84 to 1.59 across different levels.χ2 test revealed that Tilia amurensis and Pinus koraiensis did not show significant connections at all levels.Positive correlations were observed among levels Ⅰ,Ⅲ and Ⅳ,while negative correlations were found between levels Ⅱ and Ⅴ.Most interspecific relationships among the main tree species were not statistically significant,with the proportion of insignificantly associated species pairs increasing from seedling to class tree levels.However,at levels Ⅱ and Ⅳ,the proportion of negatively associated species pairs was the highest.AC,PC and Ф values indicated a relatively weak association between Tilia amurensis and Pinus koraiensis,while most of the interspe-cific relationships among other main tree species appeared to be loosely connected and independent.Overall,the main tree species in Tilia amurensis and Pinus koraiensis forest community have established a relatively stable interspecific relationship,enabling to utilize woodland resources together effectively.关键词
紫椴红松林/乔木树种/层级/种间关系/联结性Key words
Tilia amurensis and Pinus koraiensis forest/tree species/hierarchy/interspecific relationship/associa-tivity分类
农业科技引用本文复制引用
郭昕,范春楠,程岩,刘付鹏,宋广文,王馨曼,王唯瑾..紫椴红松林群落主要乔木树种种间关系[J].北华大学学报（自然科学版）,2024,25(5):573-580,8.基金项目
国家重点研发计划项目(2023YFF1304003-03) （2023YFF1304003-03）
吉林省科技发展计划项目(20210509016RQ). （20210509016RQ）
