作　　者： ; ; ; ;

机构地区： 华南农业大学

出　　处： 《应用生态学报》 2011年第8期2126-2132,共7页

摘　　要： 应用地统计学的原理和方法研究了水稻与白瓜、番茄及玉米等邻作生境内稻纵卷叶螟幼虫和食虫沟瘤蛛的空间格局与变异.结果表明:整个水稻生长过程中稻纵卷叶螟幼虫和食虫沟瘤蛛的空间分布基本为聚集分布,且两者的空间相关变程范围分别为1.91～182.57m和3.70～9.70m;种群密度的等值线图表明,两者在空间及时间上的吻合程度高,说明食虫沟瘤蛛对稻纵卷叶螟幼虫有较强的追随效应和控制作用;不同邻作模式下以白瓜邻作水稻田的控制效果最佳. Geostatistical methods were adopted to characterize the spatial pattern and its variation of Cnaphalocrocis medinalis larvae（Lepidoptera：Crambidae） and Ummeliata insecticeps（Araneida：Linyphiidae） in the habitats of paddy rice neighboring with white melon,tomato,or corn.In the rice growth period,C.medinalis larvae and U.insecticeps presented aggregative distribution,with the spatial range varied from 1.91 to 182.57 m and from 3.70 to 9.70 m,respectively.Isoline map showed that the density of U.insecticeps was spatially and temporally identical with that of C.medinalis larvae,suggesting that U.insecticeps had strong pursuing and control effects on C.medinalis larvae.Among the test neighboring patterns,paddy rice neighboring with white melon had the best performance of U.insecticeps.

关 键 词： 稻纵卷叶螟幼虫 食虫沟瘤蛛 空间格局 空间变异 地统计学

领　　域： [生物学]