生态学报2024，Vol.44Issue(11)：4733-4743,11.DOI:10.20103/j.stxb.202307251589
亚热带次生常绿阔叶林植物功能性状及多样性对人工抚育的响应
Response of functional traits and functional diversity of woody plants to tending in a secondary subtropical evergreen broad-leaved forest
摘要
Abstract
Due to long-term human interference,the vast majority of subtropical evergreen broad-leaved forests in China have degenerated into the secondary forests,which are with shortcomings such as low production rate,low ability of storage carbon,and low economic value,etc.Making profound studies on plant functional traits and functional diversity can identify the underlying mechanisms of plant coexistence and stable community development,providing a foundation for enhancing the forest ecosystem functions in practice.In order to investigate the impact of tending measures on the community of subtropical secondary evergreen broad-leaved forests,different intensities of tending measures were implemented on the secondary forest sample plots in Wuchao Mountain in Hangzhou,and a review of community vegetation was conducted two years later to compare and analyze the differences in plant functional traits and functional diversity of woody plants after conducting different intensities of tending measures.The results showed that after tending,the maximum potential height and the leaf nitrogen content,the leaf phosphorus content,and the leaf potassium content significantly increased at the community level compared to the control group,while the leaf chlorophyll content,the twig density and the leaf dry matter content at the community level significantly decreased,and there was a decreasing trend in the specific leaf area.There was no significant difference between the two intensities of tending measures.The correlation between the leaf dry matter content,the leaf chlorophyll content,and the leaf nitrogen content changed from insignificant to significantly negative,while the correlation between the leaf dry matter content and the leaf chlorophyll content,the leaf phosphorus content,the leaf potassium content and the leaf nitrogen content,as well as the leaf phosphorus content and the leaf potassium content changed from insignificant to significantly positive.After 20%intensity tending,the mean functional richness significantly decreased from 0.52 in the control group to 0.16,while the mean functional evenness and functional divergence increased to 0.61 and 0.67,which were significantly higher than 0.51 and 0.56 in the control group;Under 10%intensity tending,the functional richness decreased,while the functional evenness and the functional divergence increased,but the difference was not significant.The results indicated that tending measures could change plant functional traits and functional diversity at the community level to a certain extent,and could significantly improve the efficiency and ability of utilization of resources in a secondary subtropical evergreen broad-leaved forest.Compared with 10%intensity,there was a stronger ability in 20%intensity tending to liberate resource utilization space,thus a moderate intensity of tending can make an more significant impact on the community.The result provided a basis and reference for the operation and management of subtropical secondary evergreen broad-leaved forests.关键词
人工抚育/植物功能性状/功能多样性/森林恢复Key words
artificial tending/plant functional traits/functional diversity/forest recovery引用本文复制引用
刘子琪,姚良锦,焦洁洁,陆超,王志高,李婷婷,袁位高,江波,吴初平..亚热带次生常绿阔叶林植物功能性状及多样性对人工抚育的响应[J].生态学报,2024,44(11):4733-4743,11.基金项目
浙江省"尖兵""领雁"项目(2024C03227) （2024C03227）
