Influences of Post-fires on Subsequent Population of Japanese Pine Sawyer Beetles, Monochamus alternatus Hope (Coleoptera: Cerambycidae) in Masson Pine Forests  

作　　者：PAN Youliang CHANG Xiangqi LI Qiang LI Hongzheng CHEN Yuansheng LIU Xingping 

机构地区：[1]Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration in Poyang Lake Watershed,School of Forestry,Jiangxi Agricultural University,Nanchang 330045,China [2]Forestry Bureau of Xinjian District,Nanchang,330100,China [3]Forestry Bureau of Wuning Country,Jiujiang 332300,China [4]Jiangxi Forestry Harmful Organism Control and Quarantine Bureau,Nanchang 330077,China [5]Jiangxi Environmental Engineering Vocational College,Ganzhou,Jiangxi 341000,China

出　　处：《生物灾害科学》2021年第2期183-189,共7页Biological Disaster Science

基　　金：supported by Research Project of Jiangxi Forestry Bureau(No.201910);National Natural Science Foundation of China(No.31760106)。

摘　　要：[Objective]Both fire and insect outbreaks are considered as important natural disturbance factors in many forest ecosystems,yet few studies have addressed the effects of fires on subsequent insect outbreaks.[Method]In this paper,tree mortality,larval density and vertical distribution were measured through field investigation and sampling method to evaluate the short-term response of Japanese pine sawyer beetle,Monochamus alternatus Hope to Masson pine,Pinus massoniana Lamb.in the second year after the fire in Jiangxi Province,China.[Results]compared with unburned Masson pine forest,burned Masson pine forest suffered from higher tree mortality and more pine trees were attacked by M.alternatus.Burned Masson pine tended to harbor much higher larval density further up along the trunk than unburned pine trees,and most individuals distributed in the middle section and middle-lower section of the trunk.[Significance]The results confirmed that Masson pine forest after being damaged by non-lethal fires were more susceptible to attacks by Japanese pine sawyer beetles,displaying higher population density and higher vertical distribution position.The study will provide an important guideline for the managers of Masson pine forests suffering from fires and pest invaded areas.

关 键 词：population density vertical distribution Monochamus alternatus Hope Pinus massoniana forest fire 

分 类 号：S763.38[农业科学—森林保护学]