摘要
利用内蒙古地区春小麦主产区的15个农业气象观测站1961—2007年的气象数据,以月平均温度、月降水量、月日照时数作为主要因子,重点分析了内蒙古自治区西、中、东部春小麦区的气象要素的空间分布和时间变化特征。结果表明:随着气候变暖,内蒙古地区春小麦主产区在过去47年中生长季(4—8月)平均气温升高了1.2℃,平均每10年升高0.32℃;生长季降水量年代际间波动不大,但本世纪初全区麦区平均降水量偏少;生长季日照时数呈现出减少的趋势。气候变化使春小麦除成熟期外,其它各生育期基本随年代的增加而提早。
Using the meteorological data derived from fifteen agrometeorological observation stations of spring wheat main production areas of Inner Mongolia from 1961 to 2007, among them,monthly mean temperature, monthly precipitation and sunshine hours were regarded as three major meteorological factors. Through analyzing the characteristics of spatial distribution and temporal variation of these three meteorological factors, their results show： in spring wheat main production areas of Inner Mongolia, the mean temperature of growing period （from April to August） has risen by 1.2℃ caused by global warming in the past 47 years, the average temperature increase of 0.32℃ every ten years;The precipitation fluctuation of growing period was unobvious,however,the average precipitation of beginning of this century was on the low side;The tendency of sunshine duration of growing period was falling. The growing period of spring wheat was earlier caused by climate change with age changing except the mature period.
出处
《内蒙古气象》
2009年第4期22-25,共4页
Meteorology Journal of Inner Mongolia
基金
北京区域气象中心科技创新基金项目BRMCCX200609
内蒙古气象局200402项目资助
关键词
气候变化
春小麦
生育期
Meteorological factors
Climate change
Spring wheat
Growing period
