Geostatistical analysis on spatial patterns of Erythroneura sudra and Erigonidium graminicola

Abstract

Abstract: The spatial construction and distribution of Erythroneura sudra and Erigonidum gramimicola at different periods were investigated with geostatisics. The results showed that the semivariogram of Erythroneura sudra was described by spherical model,indicating an aggregated spatial arrangement. The range was 25.71～37.14 m. The semivariograms of Erigonidum graminicola was fitted by spherical model too,also indicating an aggregated spatial arrangement,and its range was 25.12～44.06 m. The amount and spatial distribution of Erigonidium graminicola was closely related to that of Erythroneura sudra. It reveals that Erigonidium graminicola is the dominant natural enemies influening the population of Erythroneura sudra.

Key words: Erythroneura sudra, Erigonidium graminicola, Spatial distribution, Geostatistics

CLC Number:

Q435.122

ZOU Yunding, BI Shoudong, ZHOU Xiazhi, LI Lei, GAO Caiqiu, DING Chengcheng . Geostatistical analysis on spatial patterns of Erythroneura sudra and Erigonidium graminicola[J]. Chinese Journal of Applied Ecology, 2002, (12): 1645-1648.

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Geostatistical analysis on spatial patterns of Erythroneura sudra and Erigonidium graminicola

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