Geostatistical analysis on spatial patterns of Aphis gossypii and Propylaca japonica
Bi, S.; Zou, Y.; Geng, J.; Wang, G.; Chen, G.; Meng, Q.
Ying Yong Sheng Tai Xue Bao 11(3): 421-424
2000
ISSN/ISBN: 1001-9332 PMID: 11767646 Document Number: 523605
The spatial construction and distribution of Aphis gossypii and Propylaca japonica at different period were investigated with geostatistics. The results showed that the semivariogram of Aphis gossypii was described by spherical model, indicating an aggregated spatial arrangement, the range was 8.21-10.81 m. The semivariograms of Propylaca japonica was fitted by spherical model too, also indicating an aggregated spatial arrangement, its range was 8.01-14.25 m. The amount and spatial distribution of Propylaca japonica was closely related to that of Aphis gossypii. It reveals that Propylaca japonica is dominant natural enemies of influencing population of Ahphis gossypii.