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本文利用北京、泰安、西安三个地点,四种树木的始花期记录,构成物候时空序列,并通过相关,回归分析得到一组回归方程。外推检验的结果表明,这一组回归方程定量地描述了研究区域内物侯变化的统计规律,在进行物候测报时,它们不仅适用于建立方程的三个样本点,而且以同一水平的准确性,适用于华北地区其他许多地方。因此,可以称之为树木物候区域预测模式。
In this paper, the first flowering records of four trees in Beijing, Tai’an and Xi’an were used to construct the spatio-temporal series of phenology, and a set of regression equations were obtained through correlation and regression analysis. The result of extrapolation test shows that this set of regression equations quantitatively describes the statistical laws of the changes of Houhou in the study area. When carrying out phenological observations, they not only apply to the establishment of three sample points of the equation but also to the same level of accuracy Sex, apply to many other places in North China. Therefore, it can be called the tree phenological region prediction mode.