Diversity-Stability Relationships in Forest Communities Across Different Temporal Scales
Forest community stability is an important indicator of a forest's ability to resist disturbance.It is known that the stability of forest biomass would be influenced by diversity,species asynchrony,and domi-nant species stability.However,there are few studies on the relative importance of these factors at different temporal scales.This study aims to explore the factors affecting the stability of forest community at differ-ent temporal scales.Based on the data from 110 fixed plots in the Jingouling Forest Farm in Jilin Province,this study investigated whether the correlations between diversity,dominance stability,species asynchrony,and forest community biomass stability remain consistent at different temporal scales using correlation analysis.Then,structural equation models were employed to analyze the direct and total effects.The results showed that species richness,diameter at breast height coefficient of variation,and species asynchrony were consistently and positively correlated with stability.As the temporal scale increased,the direct effect of species asynchrony increased from 0.44 to 0.63,and the total relative effect increased from 36.87%to 45.57%,species asynchrony has consistently been the most important factor affecting the temporal stabili-ty of forest biomass.This study explored the most important factor affecting community stability,which helps to better understand the mechanisms of the diversity-stability relationship in forest ecosystems.However,the diversity-stability relationship and its mechanisms are complex,and it is necessary to further investigate using different diversity indicators in the future.
diversity-stability relationshiptemporal scalesspeices asynchronystructural equation model
万方数据
维普
