摘要
利用浙江省1949～1990年的粮食产量和相应的气象资料,分析了影响该省粮食生产的气象灾害的特征.结果表明:气象灾年持续期的年际变化具有准周期性;气象重灾年在时间分布上具有连续性;粮食歉收年的气象灾害有“显灾”和“隐灾”之分,且不同时段各有主次.歉收或严重歉收年的气象灾害是多粮季和多种类的.
This paper is a study based on the food crop yield data (1949-1990) and corresponding meteorological
data in Zhejiang Province. Some features of meteorological disasters which influence the food crop production
of this province are as follows:
1. The annual change of the duration of meteorological disaster years has a quasi-cycle ; 2. The distribu-
tion of the period of meteorological disaster years is possessed of a continuity; 3. Meteorological disasters
which cause the poor harvest or grievous poor harvest years are possessed of many harvest seasons and many
types; 4. Meteorological disasters which influence the food crop yield of this province may be classified as ap-
parent disasters and not apparent disasters, and have the primary and secondary extent in various years.
出处
《科技通报》
1992年第6期340-341,共2页
Bulletin of Science and Technology
基金
浙江省自然科学基金
关键词
气象灾害
粮食作物
作物
food crop production
meteorological disaster
meteorological serious disaster year
