Changing regularity of plant and insect community characteristics due to pest outbreaks in Larix principis- rupprechtii plantations  

作　　者：Yanan Zhao Xuemin He Hanxiao Li Qiang Xu Lifeng Wang Ziheng Zhang Guona Zhou Junxia Liu Baojia Gao 

机构地区：[1]College of Forestry,Hebei Agricultural University,071000 Baoding,People’s Republic of China

出　　处：《Journal of Forestry Research》2024年第6期86-94,共9页林业研究（英文版）

基　　金：supported by National Natural Science Foundation of China (grant no.32371882)

摘　　要：Research has indicated that simple forest eco-system composition,structure and diversity have uncompli-cated community relationships and insufficient pest control capabilities.To investigate changing characteristics of plant and insect communities in under pest outbreaks in Larix principis-rupprechtii plantations,the research areas were defined as mature(48–50 years)and young(24–29 years)infested stands along with healthy stands.The results show a reduction in the complexity and diversity of plant communi-ties and herbaceous plant guilds(polycultures of beneficial plants)and the complexity and dominance of insect com-munities,especially natural insect enemies.The results also show the relative simplicity of the main factors of commu-nity change and development that represent the characteris-tics of pest outbreaks in L.principis-rupprechtii plantations.The complexity and diversity of plant communities,particu-larly herbaceous plant guilds play a fundamental role in the regulation and development in forest ecosystems.

关 键 词：Community characteristics Species diversity Ecology regulation Pest outbreaks Larix principis-rupprechtii 

分 类 号：S763.7[农业科学—森林保护学]