摘要
本文报道了细毛神蕊螨在柑桔园内的空间分布型以及在柑桔树冠内的空间格局。结果表明:细毛神蕊螨在柑桔园内的空间分布属聚集分布型;在树冠内各方位也属聚集分布,但其聚集程度不一,其中,内、外层聚集强度基本相同,西方和下层聚集强度大;从10月至12月,随着时间推移,扩散聚集趋势为:扩散─聚集─扩散─聚集。
This paper reported the spatial distribution and the spatial pattern of A.termi-nalis (Quayle) in the citrus orchard. The results indicate that the spatial distribudon patternof A. terminalis (Quayle) is aggregative distribution in the citrus orchard , it also is aggrega-tive distribution in every direction of the tree; but the aggregative extent is not equal, theaggregative extent of the inner and the outer of the tree is subequal, the aggregative intensityof the west and the down levels are higher than other direction; from October to December,the spatial pattern of A. terminalis (Quayle) is dispersal-aggregation-dispersal-aggrega.tion.
出处
《南昌大学学报(理科版)》
CAS
1994年第3期242-248,共7页
Journal of Nanchang University(Natural Science)
基金
江西省自然科学基金
关键词
细毛神蕊螨
空间分布型
空间格局
Agistemus terminalis (Quayle), spalial distribution pattern, spatial pattern