纳曼干脊虎天牛空间分布型及其应用研究  

Study on Spatial Distribution Model and Its Application on Controling Xylotrechus namanganensis

作　　者：王爱静 刘宏光 邓克蓉 赵瑛瑛 

机构地区：[1]新疆林业科学研究院,新疆乌鲁木齐830052 [2]新疆克拉玛依市园林科学研究所,新疆克拉玛依834000

出　　处：《林业科学研究》2000年第6期684-687,共4页Forest Research

基　　金：新疆克拉玛依市科委"纳曼干脊虎天牛综合治理"(1996~ 1998年 )课题! (CK96 0 4)内容之一

摘　　要：Xylotrechus namanganensis is a kind of devastating borer to many broad leaved tree species in Xinjiang.Its spatial distribution model has been studied since 1996.The result showed that the number of adult eclosion cavity on the trunk of elm trees with the height of 0～0.5 m,and 0～2.5 m above the ground belonged to assembly distribution model by testing the indexes such as C,I,M *,M */,K and CA .Checking tests by method of Iwao and Taylor also consistently draw out the same conclusion. The sampling numbers of elm trees can be determined by the formulae N=143.26/ +15.78 and N=345.63/ +13.04 respectively if the number of eclosion cavity on the trunk with the height of 0～0.5 m,or 0～2.5 m above ground is to be investigated by Iwao method. On the basis of recognizing that eclosion cavity spatial distribution of Xylotrechus namanganensis on the trunk of elm trees belonged to assembly distribution model,and the economic injury level (EIL) was 2 eclosion cavities on the trunk,the upper and lower limits of sampling number can be calculated by formula T 0(n)=2N±8.179 7N .Xylotrechus namanganensis is a kind of devastating borer to many broad leaved tree species in Xinjiang.Its spatial distribution model has been studied since 1996.The result showed that the number of adult eclosion cavity on the trunk of elm trees with the height of 0～0.5 m,and 0～2.5 m above the ground belonged to assembly distribution model by testing the indexes such as C,I,M *,M */,K and CA .Checking tests by method of Iwao and Taylor also consistently draw out the same conclusion. The sampling numbers of elm trees can be determined by the formulae N=143.26/ +15.78 and N=345.63/ +13.04 respectively if the number of eclosion cavity on the trunk with the height of 0～0.5 m,or 0～2.5 m above ground is to be investigated by Iwao method. On the basis of recognizing that eclosion cavity spatial distribution of Xylotrechus namanganensis on the trunk of elm trees belonged to assembly distribution model,and the economic injury level (EIL) was 2 eclosion cavities on the trunk,the upper and lower limits of sampling number can be calculated by formula T 0(n)=2N±8.179 7N .

关 键 词：纳曼干脊虎天牛 空间分布型 序贯抽样 

分 类 号：S763.38[农业科学—森林保护学]