›› 2011, Vol. 23 ›› Issue (4): 0-762.

• 植物保护 •    

甘蓝生长关键期小菜蛾蛹的空间变异特征

张娟1,黄俊2 ,施祖华1,*   

  1. 1浙江大学 昆虫科学研究所,浙江 杭州310029;2浙江省农业科学院 花卉研究开发中心,浙江 杭州 311202
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-07-25 发布日期:2011-07-25

Spatial variability of Plutella xylostella pupae in the critical growing stage of Brassica oleracea

ZHANG Juan;HUANG Jun;SHI Zu-hua*   

  1. 1Institute of Insect Sciences, Zhejiang University, Hangzhou 310029, China; 2Research and Development Centre of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou 311202, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-07-25 Published:2011-07-25

摘要: 应用地统计学方法分析了甘蓝生长关键期小菜蛾蛹的空间格局,并建立了南北方向上的半变异函数曲线模型。结果表明, 3个调查时间点(2010年10月9日,10月17日和10月31日)小菜蛾蛹的半变异函数曲线皆为球形,其空间格局为聚集型,且空间相关变程分别为7.91,9.10和1.74 m,空间不连续性强度分别为0.5858,0.3987和0.9970。

关键词: 小菜蛾蛹, 空间格局, 地统计学

Abstract: The spatial patterns of Plutella xylostella pupae in the critical growing stage of Brassica oleracea were analyzed by geostatistical methods, and the semivariogram curve models in the south\|north orientation were established. The results showed that the semivariogram curves of P. xylostella pupae were fitted with the spherical models at all three sampling dates(October 9, 17 and 31, 2010), and their spatial distribution showed aggregative pattern; the spatial ranges of pupae were 7.91m, 9.10m and 1.74m, respectively, and the spatial discontinuities were 0.5858, 0.3987 and 0.9970, respectively for the three sampling dates.

Key words: Plutella xylostella pupae, spatial pattern, geostatistics