摘要
本文根据气候演变规律、采用综合距平相关法、统计分辨法和分级多元回归方法建立了甜菜产量的长中短期预测模式.含糖率预测,则直接建立长中短期多元回归预测模式、长中短期预测模式可以互为补充订正,有效地克服了运用单一模式常因气候突变而出现预测失误的不足。其预测精度较高。
According to the climatic changing regularity, this paper has shown that the forecast model of the beet yields on a long, middle, short-range has been established with synthetical departure correlation method and statistical resolving method and assortment multivariant regression method.
The multivariant regression forecast model on a long, middle, short-range has been directly established to forecast the sugar content. This model could complement and correct each other,so it could effectively conquer the forecast fault caused by the single model for climatic sudden change,and the forecast precision was higher.
