烟盲蝽及其天敌蜘蛛空间格局的地统计学分析  

Geostatistical analysis of spatial patterns of Nesidiocoris tenuis(Reuter)(Hemiptera:Miridae) and its natural enemy spiders

作　　者：赵静[1] 赵鑫[1] 王玉军[1] 李光强[2] 刘丽平[1] 孟家华[1] 郑方强[1] 

机构地区：[1]山东农业大学植物保护学院,泰安271018 [2]北京出入境检验检疫局,北京100026

出　　处：《生态学报》2010年第15期4196-4205,共10页Acta Ecologica Sinica

基　　金：山东省烟草专卖局科技计划资助项目(31468)

摘　　要：利用地统计学的方法研究了烟草(品种为中烟100)不同生长期烟盲蝽及天敌蜘蛛的空间格局,结果表明:烟盲蝽的空间格局随时间的变化呈现为随机、聚集、再随机和再聚集;尽管蜘蛛混合种群的空间格局也依次表现为随机、聚集、随机和聚集分布,但只是在后期与烟盲蝽的空间格局一致。利用BlockKriging进行空间插值分析,得到的三维空间插值模拟图能很好地反映烟盲蝽和蜘蛛种群的田间分布状况。同时,对烟盲蝽及天敌蜘蛛的种群动态进行了分析,发现它们的种群数量变化趋势相似。所有结果表明蜘蛛种群在较大程度上与烟盲蝽种群存在跟随关系。Green tobacco capsid,Nesidiocoris tenuis,is one of the important insect pests on tobacco.It pierces and sucks on the leaves,growing points and buds,which can not only result in pale spots and slow growth,but also transmit some virus diseases.As very important biological agent,spiders such as Hylyphantes graminicola,Misumenops tricuspidatus and Coleosoma octomaculatum can have good control efficiency on the insect pest in tobacco field.This research was carried out to reveal the spatial patterns and population dynamics of the insect pest and spiders in different growing stages of tobacco（Zhongyan-100） at the Experimental Station of Shandong Agricultural University,and aim to lay the theoretical foundation for sampling and management of the pest and conservation of spiders.N.tenuis immigrated into tobacco field gradually from the surroundings during transplanting and rosette stages of tobacco,and its population showed random distribution.The semivariograms of N.tenuis were fitted by the exponential,spherical and linear models with the ranges of 6.92-65.56m in vigorous growth stage of tobacco,and the spatial pattern belonged to aggregative distribution.The population of N.tenuis distributed randomly again after the vigorous growth stage.When the habitat was steady gradually after the first harvest,the semivariograms of the pest were fitted by exponential and spherical models with the ranges of 31.11-58.84m,and the spatial pattern obviously displayed aggregative distribution with the aggregative intensities above 65%.Therefore,the spatial patterns of N.tenuis showed random,aggregative,random and aggregative patterns in the temporal sequence,respectively.In comparison with that of N.tenuis,the spatial pattern of spiders was random distribution with the small population of N.tenuis at the early stage and became aggregative with the rising number of N.tenuis.Affected by the spatial patterns of N.tenuis in the late growing period,the spatial pattern of spiders took on random distribution in a short time,and then turn

关 键 词：地统计学 烟盲蝽 蜘蛛 空间格局 半方差函数 种群动态 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]