广西松褐天牛成虫种群动态规律及其与林分和气象因子相关性  

Population Dynamics of Monochamus alternatus Adults in Guangxi and Its Correlation with Pine Stand and Meteorological Factors

作　　者：郑光楠 杨秀好 韦曼丽 郑霞林[1] Zheng Guangnan;Yang Xiuhao;Wei Manli;Zheng Xialin(Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety College of Agriculture,Guangxi University,Nanning 530004;Guangxi Forestry Science Research Institute,Nanning 530002;Forest Pest Management Station of Guangxi,Nanning 530028)

机构地区：[1]广西农业环境与农产品安全重点实验室、广西大学农学院,南宁530004 [2]广西壮族自治区林业科学研究院,南宁530002 [3]广西壮族自治区林业有害生物防治检疫站,南宁530028

出　　处：《林业科学》2023年第1期128-142,共15页Scientia Silvae Sinicae

基　　金：广西林业科技项目(桂林科研[2016]第39号)。

摘　　要：【目的】明确广西松褐天牛成虫种群动态规律及其与林分和气象因子的相关性,为其预测预报及防治提供技术支撑。【方法】2019—2020年基于松褐天牛APF-I诱芯和ZM-80B型诱捕器,采用动态监测法研究了广西桂东、桂北、桂西、桂南和桂中地区松褐天牛成虫种群动态,并分析其与纬度、林内/林缘、海拔、郁闭度、树龄、坡度和是/非松材线虫病疫区等林分因子及月均气温、月均最高气温、月均最低气温、月均湿度、月均最小相对湿度、月均降雨量和月均日照时数等气象因子的相关性。【结果】松褐天牛成虫在桂东、桂西、桂南和桂中地区一年中有1~3个发生高峰期,1—2月可诱捕到成虫,而桂北地区一年仅有1个发生高峰期,1—2月份未诱捕到成虫。桂东、桂北、桂西、桂南、桂中成虫的始见期分别为1月上旬、4月上旬、2月上旬、1月上旬和2月下旬,年发生盛期分别为3月中旬至9月中下旬、4月中旬至7月下旬、3月下旬至8月上旬、3月下旬至8月中下旬和4月上旬至8月中下旬,终见期分别为12月下旬、11月上旬、12月下旬、12月下旬和11月下旬。桂中地区诱捕到的雌虫数量显著高于其他4个地区,桂东、桂西和桂中地区诱捕到的雄虫数量显著高于桂南和桂北。除桂西地区外,其他4个不同地理区域诱捕到的松褐天牛雌虫数量均显著多于雄虫。位于林内的诱捕器诱捕到的雌虫和雄虫数量均显著高于林缘地带。纬度、海拔、树龄和是否为松材线虫病疫区与诱捕量间无显著相关性;郁闭度与雄虫及坡度与雌虫年诱捕量呈显著负相关性。广西松褐天牛成虫种群动态规律与月均气温、月均最高气温、月均最低气温呈显著正相关。【结论】广西松褐天牛成虫一年中有1~3个发生高峰期,其中桂东地区一年中有2个成虫发生高峰期,桂北、桂南和桂中地区一年中有1个成虫发生高峰期,�【Objective】This study aims to determine the population dynamics of Monochamus alternatus adults in Guangxi and its correlation with pine stand and meteorological factors, which could provide information for its forecast and prevention. 【Method】Based on the data collected with APF-I lure cores and ZM-80B traps, the population dynamics of M. alternatus adults occurred in eastern, northern, western, southern and central regions of Guangxi were studied through dynamic monitoring method from 2019 to 2020. Subsequently, the correlations of population dynamics in M. alternatus with stand factors, including latitude, inner/edge, altitude, canopy density, tree age, slope and epidemic area and non-epidemic area of pine wood nematode(Bursaphelenchus xylophilus), and meteorological factors, including monthly average temperature, monthly average maximum temperature, monthly average minimum temperature, monthly average humidity, monthly average minimum relative humidity, monthly average rainfall and monthly average sunshine hours were analyzed.【Result】One to three peak periods of M. alternatus adults appeared in eastern, western, southern and central regions of Guangxi in one year, adults were able to be trapped from January to February that usually are the coldest months. However, only one peak period of M. alternatus adult appeared in northern Guangxi in one year, and no adult was trapped from January to February. The inception period of M. alternatus adults occurred in eastern, northern, western, southern and central Guangxi was early January, early April, early February, early January and late February, respectively. The annual occurrence peak period was from mid March to mid-late September, from mid April to late July, from late March to early August, from late March to mid-late August, and from early April to mid-late August, respectively. The end of peak period was mid-late September, late July, early August, mid-late August and mid-late August, respectively. The end period was late December, early November,

关 键 词：松褐天牛 种群动态 林分条件 气象因素 

分 类 号：S763.3[农业科学—森林保护学]