湖北省粮食生产合理布局的初步研究

湖北省112°E以东的平原、丘陵地区,是粮食的主要产地。南北所跨纬度29°42′—32°34′N。本文分析了影响小麦和双季稻产量的气象因子的南北差异。用回归分析方法确定了它们之间的定量关系,再用聚类分析法进行了小麦和晚稻的种植区域的分类,得到了比较满意的结果。以31°N纬线为界,以北的鄂中丘陵、鄂北岗地为稻麦两熟区;以南的江汉平原和鄂东南为双季稻区。

A PRELIMINARY STUDY ON THE RATIONAL DISTRIBUTION OF FOOD GRAIN PRODUC TION IN HUBEI PROVINCE

The plain and hill to the east of 112°E in Hubei is the main food grain region of This province. It strides across latitude 29°42'~32°34'N from south to north. this paper analyses the difference between south and north of the me-teorological factors which influence the yield of wheat crops and late rice. The quantitative relation between them is determined by the method of regression analysis and the growing regions of wheat crops and late rice are classified by the method of cluster analysis. Satisfactory results have been obtained and appropriate growing region of wheat crops and late rice has been suggested. It suggests the latitude 31 0N being a dividing line. The region to the north of this line (including hill of Middle Hubei and low-hill of North Hubei) is the rice-wheat or rice-rape doubleharvest area, and the region to the south of this line (including Jianghan plain and Southeast Hubei) is the doubleharvest rice region.