生态学杂志2024，Vol.43Issue(11)：3233-3239,7.DOI:10.13292/j.1000-4890.202411.014
北热带沟谷季雨林群落种间关联动态分析
Dynamic analysis of interspecific association in a valley monsoonal rainforest community in northern tropi-cal region
摘要
Abstract
The study of changes in inter-species relationships would help reveal plant community succession and provide a basis for the mechanistic understanding of the ecological stability of communities and biodiversity mainte-nance.In 2015,a 1-hm2 forest monitoring plot was established in the core distribution area of Hopea chinensis,a key species in the northern tropical valley monsoon rainforest of Shiwandashan,Guangxi.We assessed the changes of interspecific relationships of 22 major species in the community by comparing the data in 2015 and a reassess-ment in 2020,using the variance ratio(VR),Pearson correlation coefficient and Spearman rank correlation analy-sis.Results showed that:(1)The VR value of this community was 1.09 in 2015 and 0.98 in 2020.There was a significant VR deviation from 1(with ω=108.75 and 97.78 in 2015 and 2020,respectively),both falling within the interval of[77.93,124.34].The overall interspecific associations were not significant.(2)Pearson correlation coefficient analysis showed that there were 28 species pairs with significant positive associations and 14 species pairs with significant negative associations in 2015.There were 35 species pairs with significant positive associations and 18 species pairs with significant negative associations in 2020.Spearman rank correlation analysis showed that there were 26 species pairs with significant positive associations and 19 species pairs with significant negative associations in 2015.The species pairs with significant positive associations in 2020 increased to 31 while those with negative associations remained similar(18 species pairs).(3)The correlation between Hopea chinensis and other species became stronger,with no change in significant positive association species pairs,and decreases in significant nega-tive association species pairs.The ecological dominance of Hopea chinensis increased.In conclusion,the significant positive associations among species were enhanced with time.The associations among major species were complicat-ed,but the changes within the 5-year period showed stability in the positive associations among major species,indi-cating that the community was in a positive stage of dynamic succession.关键词
种间关联/联结性变化/方差比率/Pearson相关性/Spearman秩相关Key words
interspecific association/associative change/variance ratio/Pearson correlation/Spearman rank cor-relation引用本文复制引用
何巧萍,罗应华,姜冬冬,零雅茗..北热带沟谷季雨林群落种间关联动态分析[J].生态学杂志,2024,43(11):3233-3239,7.基金项目
国家自然科学基金(31200330)、广西林草种质资源普查与收集(桂林科字[2021]第34号)和广西科技厅重大专项(桂科AB16380254)资助. （31200330）
