绿竹密竹链蚧空间分布的地理统计学分析

摘要

For Bambusaspis miliaris monitoring and predicating ,the geostatistics method was applied on analyzing the spatial pattern of the pest in D .oldhami forest .The result showed there was aggregated distribution for B . miliari in D .oldhami forest .The aggregated scope was from 6 .0545 m to 16 .0224 m .They attracted among the individual and accumulated in a small plaque .The sample plot was 1 m × 1 m ,2 m × 2 m ,3 m × 3 m ,5 m × 5 m and 6 m × 6 m ,respectively .The Kriging interpolation method was applied and found that the distance from south to north was larger than that from east to west .The direction for the pest to gather and spread was from south to north .%应用地理统计学的方法分析了密竹链蚧[Bambusaspis miliaris（Boisduval）]在绿竹林中的空间格局。结果表明，密竹链蚧在绿竹林中呈聚集分布，空间聚集范围6．0545～16．0224m ；密竹链蚧个体间相互吸引，且集中在较小的斑块内。分别以1 m×1 m、2 m×2 m、3 m×3 m、5 m×5 m、6 m×6 m的样方划分样地，并结合密竹链蚧林间克里格插值估计结果，发现南→北方向上的相关距离均大于东→西方向。说明南→北方向是密竹链蚧种群聚集和扩散的主要方向。