云南省切梢小蠹种群结构及其演替规律  

Population Structure and Succession Law of Tomicus Species in Yunnan

作　　者：王晓渭 陈鹏[1] 王艺璇[1] 袁瑞玲[1] 冯丹[1] 李丽莎[1] 叶辉 潘悦 吕军 周益锋 杜春花[1] WANG Xiao-wei1,CHEN Peng1,WANG Yi-xuan1,YUAN Rui-ling1,FENG Dan1,Li Li-sha1,YE Hui2,PAN Yue2,LV Jun2,ZHOU Yi-feng3,DU Chun-hua1(1. Yunnan Academy of Foreshty, Kumning 650201, Yunnan, China; 2. School of Agriculture, Yunnan University, Kumning 650091, Yunnan, China;3. Foreshty Bureau of Ninger County, Ninger 66500, Yunnan, Chin)

机构地区：[1]云南省林业科学院,云南昆明650201 [2]云南大学农学院,云南昆明650091 [3]宁洱县林业局,云南宁洱665000

出　　处：《林业科学研究》2018年第3期167-172,共6页Forest Research

基　　金：云南省应用基础重点项目(2013FA055);国家自然科学基金(31160095)

摘　　要：[目的]为明确云南省切梢小蠹种群结构及变化规律,指导切梢小蠹的防控。[方法]在云南蠹害林区调查采样并鉴定切梢小蠹种类,比较20世纪90年代和2010年代石林、安宁、丘北3地切梢小蠹种群结构及变化情况。[结果]共有4种切梢小蠹在云南发生危害,其中,横坑切梢小蠹占发生总量的38.1%,云南切梢小蠹占36.6%,松芽小蠹占19.7%,华山松切梢小蠹占5.6%。小蠹种群结构90年代与目前比较发生了显著变化,主要体现在横坑切梢小蠹和云南切梢小蠹,云南切梢小蠹所占种群数量由20世纪90年代的92.1%减少到目前的42.7%,而横坑切梢小蠹由20世纪90年代的7.9%,迅速增长到目前的57.3%。[结论]在云南,经过20年种群演替,之前云南切梢小蠹一支独大危害松林的局面,已转变为云南切梢小蠹和横坑切梢小蠹角力共同危害松林,预示当地松林尤其是云南松林正处于亚健康或不健康的状况,结果为云南省切梢小蠹的监测和防控提供了新的科学数据支持。[Objective]To clarify the population structure of Tomicus species in Yunnan,and to elucidate its succession law so that to provide theoretical guidance for the management of Tomicus spp. [Method]Surveying,sampling and identifying Tomicus in occurrence areas of Yunnan,and comparing the population structures of Tomicus spp. between 1990 s and 2010 s at 3 spots（Shilin,Anning,and Qiubei）. [Result]There are four Tomicus species in Yunnan Province,T. yunnanensis occupied 36. 6% of the sampling population,T. minor occupied 38. 1%,T.brevipilosus occupied 19. 7%,and T. armandii occupied 5. 6%. Recently,the population structure of T. yunnanensis and T. minor changed significantly compared with that in 1990 s. The percentage of T. yunnanensis in population declined from 92. 1% in 1990 s to 42. 7% in 2010 s,correspondingly,the percentage of T. minor in population increased from 7. 9% in 1990 s to 57. 3% in 2010 s. [Conclusion]In Yunnan Pvrovince,after 20 years＇ population succession,T. yunnanensis is no longer the only Tomicus species damaging pine forests,the dominant Tomicus species are both T. yunnanensis and T. minor,indicating that pine forests in Yunnan,especially Pinus yun-nanensis forest,are in sub-healthy even unhealthy situations. The results provide a new scientific data for Tomicus monitoring and control in Yunnan province.

关 键 词：云南 切梢小蠹 种群结构 

分 类 号：S763.3[农业科学—森林保护学]