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1 前言 襄樊市位于鄂北,东连桐柏山,西邻武当山,属北亚热带季风气候,具有南北气候过渡带特点,四季分明,光热充足。本区具有种植小麦得天独厚的气候优势,光热资源丰富,春季连阴雨少,小麦种植面积、总产或单产历来为湖北省各地之首。据1995年湖北省统计年报,襄樊市小麦种植面积和总产分别占全省的21％和35％。平均单产比全省高71％。因此,研制襄樊市小麦产量气象预报模式,对全省农业气象预报业务,尤其是全省小麦产量预报意义重大。
1 Introduction Xiangfan City is located in northern Hubei, east of Tongbai Mountain, Wudang Mountains in the west, is a north subtropical monsoon climate, with the characteristics of the North-South climate transitional zone, four seasons, adequate light and heat. The region has the unique climate of wheat cultivation, light and heat resources, less rainy spring, wheat acreage, total output or yield has always been the first in Hubei Province. According to the Statistical Yearbook of Hubei Province in 1995, the acreage and total output of wheat in Xiangfan City accounted for 21% and 35% of the province’s total respectively. The average yield is 71% higher than the province. Therefore, the development of meteorological forecast model of wheat yield in Xiangfan City, the province’s agricultural weather forecasting business, especially the forecast of wheat production in the province of great significance.