棉蚜及龟纹瓢虫空间格局的地学统计学研究- 应用生态学报.PDF

应 用 生 态 学 报 　2000 年 6 月 　第 11 卷 　第 3 期 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 CHIN ESE J OU RNAL OF A PPL IED ECOL O GY ,J un . 2000 ,11 (3) ∶42 1～424 棉蚜及龟纹瓢虫空间格局的地学统计学研究 (安徽农业大学 ,合肥 230036) 毕守东 　邹运鼎 　耿继光 　王公明　陈高潮 　孟庆雷 　 【摘要】　应用地学统计学的原理和方法研究了不同时期棉蚜及龟纹瓢虫种群的空间结构和空间相关性. 结果 表明 ,不同时期棉蚜种群的半变异函数曲线皆为球型 ,其空间格局为聚集型 ,变程在 82 1～10 81m 之间;龟纹 瓢虫种群的拟合半变异函数曲线也表现为球型 ,呈聚集空间格局 ,空间变程在 80 1～14 25m 之间 ,并与棉蚜种 群在数量和空间上有较强的追随关系 ,说明龟纹瓢虫种群是棉蚜种群的优势种天敌. 关键词 　棉蚜 　龟纹瓢虫 　空间格局 　地学统计学 Geostatistical analysis on spatial patterns of Aphis gossypii and Propyl aca j aponica . B I Shoudong ,ZOU Yunding , GEN G J iguang , WAN G Gongming , CHEN Gaochao and M EN G Qinglei ( A nhui A g ricult u ral University , Hef ei ) ( ) 230036 . Chin . J . A pp l . Ecol . , 2000 ,11 3 :42 1～424 . The sp atial construction and distribution of A p his gossyp ii and Propy laca j ap onica at different p eriod were investigated wit h geostatistics. The result s showed t hat t he semivariogram of A p his gossyp ii was described by sp herical model ,indi cating an aggregated sp atial arrangement ,t he range was 82 1～10 81m . The semivariograms of Propy laca j ap onica was fitted by sp herical model too ,also indicating an aggregated sp atial arrangement ,it s range was 80 1～14 25m . The amount and sp atial distribution of Propy laca j ap onica was closely related to t hat of A p his gossyp ii . It reveals t hat Propy laca j ap onica is dominant natural enemies of influening population of A hp his gossyp ii . Key words 　A p his gossyp ii , Propy laca j ap oinica , Sp atial distribution , Geostatistics.