Analysis of Spatial Pattern of Chactocnema ingeuua and Its Dominant Natural Enemy Erigonidium graminicola with Geostatistics
Investigations on the spatial structure and correlation between Chactocnema ingeuua and its natural enemy Erigonidium graminicola were conducted with geostatistics. The results indicated that the semivariogram of Chactocnema ingeuua displayed as a spherical model, showing an aggregated spatial distribution with the distance of spatial dependence of 18.82m. The degrees of its spatial dependence were 49.39﹪. As for Erigonidium graminicola,the corresponding models were also spherical ones, showing an aggregated distribution with the distance ranges of spatial dependence of 22.45m. The degrees of spatial dependence were 33.8﹪. The consistence of Chactocnema ingeuua with Erigonidium graminicola in the range, the spatial distribution and the degrees of spatial dependence supported the spatial following relationship of Erigonidium graminicola to Chactocnema ingeuua. All of the results gave the strong evidence that Erigonidium graminicola was the dominant natural enemy in the lawn.
lawn Chactocnema ingeuu Erigonidium graminicola spatial pattern geostatistics
Shoudong Bi Maolian Gong Fen Li Houzhang Wu Yunding Zou
Anhui Agricultural University, Hefei 230036, China
国际会议
The 1st International ELID-Grinding Conference(第一届镜面磨削技术国际会议)
长沙
英文
497-501
2008-06-12（万方平台首次上网日期，不代表论文的发表时间）