不同自然区温度的不等效性对农业的危害

本文分析了三种不同自然区引起气温不等效性的原因、特征及其对农业的危害，推算出等效积温的表示方法，并提出农业增产增收所应采取的措施。

THE UNEQUIVALENCY OF TEMPERATURE AND ITS EFFECTS ON AGRICULTURE

hina has a vast territory and a varied topography, The phenomenum of the unequivalency of temperature appears on a large scale, in many places and with high frequency. As agroclimatological indexes, the accumulated temperature and the starting and ending dates of the period at/above a certain temperature do not reflect such phenomenum. The unequivalency of temperature is caused by the altitude, the bad match of light and temperature and the humility. In this paper, an index of equivalent accumulated temperature is put forward, which can serve as the climatological basis for distribution of agricultural production.