Geostatistical analysis on spatial patterns of Didesmococcus koreanus Borchs and Chilocorus rubidus Hope

Chinese Journal of Applied Ecology ›› 2003, Vol. ›› Issue (3): 413-417.

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Geostatistical analysis on spatial patterns of Didesmococcus koreanus Borchs and Chilocorus rubidus Hope

HUANG Baohong¹, ZOU Yunding², BI Shoudong², ZHU Hongwei¹, GAO Zhengliang³

1. Anhui Technical NormalCollege, Fengyang 233100, China;
2. Anhui Agricultural University, Hefei 230036, China;
3. Tobacco Research Institute of Anhui Province, Fengyang 233100, China

Received:2002-08-07 Revised:2002-11-20 Online:2003-03-15

Abstract

Abstract: The spatial pattern and correlation of Didesmococcus koreanus Borchs and Chilocorus rubidus Hope in different periods were investigated with geostatistics. The results showed that the semivariogram of Didesmococcus koreanus Borchs and Chilocorus rubidus Hope could be described by spherical model, indicating that their spatial pattern were in agreement. The spatial variation was arosed by its spatial autocorrelation in small scales, and the spatial pattern had no apparent changes in different periods. The range varied from 9.56～15.70 m and from 18.83～19.74 m, respectively. The amount and spatial distribution of Chilocorus rubidus Hope was closely related to that of Didesmococcus koreanus Borchs, which revealed that Chilocorus rubidus Hope was the dominant natural enemy of Didesmococcus koreanus Borchs.

CLC Number:

S435.122

HUANG Baohong, ZOU Yunding, BI Shoudong, ZHU Hongwei, GAO Zhengliang. Geostatistical analysis on spatial patterns of Didesmococcus koreanus Borchs and Chilocorus rubidus Hope[J]. Chinese Journal of Applied Ecology, 2003, (3): 413-417.

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Geostatistical analysis on spatial patterns of Didesmococcus koreanus Borchs and Chilocorus rubidus Hope

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