论文部分内容阅读
应用地学统计学方法分析了柑橘园主要害螨柑橘全爪螨Panonychus citri(McGregor)种群的空间格局及其动态。结果表明,柑橘全爪螨种群具有空间相关性,变程介于1.10 ～21.0 m,其半变异函数主要符合高斯模型,表现为聚集分布,其中3月、8月和9月的聚集强度较大;种群空间格局动态显示,4月、10月为该种群的两个发生高峰期,柑橘全爪螨种群数量快速上升扩散。地学统计学方法能够应用于柑橘全爪螨种群的空间格局分析,并有助于对该害螨进行发生预测与控制处理。
Geostatistical methods were used to analyze the spatial pattern and dynamics of Panonychus citri (McGregor) population, a major citrus orchard mite. The results showed that there was a spatial correlation between the populations of M. pampony and the mites, ranging from 1.10 to 21.0 m. The semivariogram fitted the Gaussian model and showed aggregated distribution. The aggregation intensity was higher in March, August and September The dynamics of population spatial pattern showed that in April and October, the two peak occurrence periods of this population, the population of P. citri increased rapidly and rapidly. Geostatistical methods can be applied to the spatial pattern analysis of M. citri population, and it is helpful to predict and control the pest mites.