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应用生物地理统计学方法分析了长鞘卷叶甲成虫种群的空间分布格局,在3 m×3 m样方下建立东南→西北方向的半方差函数理论模型,并应用克立格插值方法对其种群密度和空间结构进行估计和模拟。结果表明:球状模型对长鞘卷叶甲成虫种群在该方向上的理论半方差函数有较好拟合效果,其空间分布格局为弱聚集型;成虫在山坡竹林与河岸竹林的变程分别为21.2157和38.8266 m,空间聚集分布的连续性强度分别只有0.3633和0.1758,说明种群在研究区内由空间自相关而产生的结构性变异在总变异中所占比例较小,即变异主要由种群结构的随机性成分引起。
The spatial distribution of adults of C. choriophylla was analyzed using biogeographical statistical methods. A semivariogram function model was constructed from southeast to northwest in a 3 m × 3 m quadrat and Kriging interpolation Population density and spatial structure were estimated and simulated. The results showed that the spherical model had a good fitting effect on the theoretical semivariance function in this direction for the adults of C. choriophylla, and its spatial distribution pattern was weakly aggregated. The variation ranges of adults on hillside bamboo forest and riparian bamboo forest were 21.2157 and 38.8266 m, respectively, indicating that the structural variations of spatial variability in the study area due to spatial autocorrelation accounted for a small proportion of the total variation, that is, the variation was mainly caused by the population structure Caused by random components.