摘要
利用山西省39个气象站1960-2005年春季平均气温和降水量资料,采用M-K方法,分析了山西省春季气候变化的区域特征。结果表明:春季平均气温全省呈现一致升高的趋势,但存在纵向差异,升温明显区域集中在中部断陷盆地一带;各气候区春季降水变化趋势不明显,主要以年际间的波动为主,西北部春季降水呈现微弱增多的迹象。春季气候的这种变化对农业生产有利也有弊。
In this paper, the spring climate change and its effect on agricultural production in Shanxi Province are analyzed based on the data of average spring temperature and precipitation at 39 representative meteorological stations during the period from 1960 to 2005 using M-K method. The results show that the change of average spring temperature can be divided into two periods： before the 1990s, the average spring temperature was decreased in north Shanxi Province and fluctuated in a small range in central and south Shanxi Province; since the 1990s, the average spring temperature has been significantly increased in all the climatic regions, however, there is a longitudinal difference in spring temperature. The significant spring temperature increase occurs mainly in the fault basins in central Shanxi Province. The average spring temperature in Shanxi Province was increased by 0.3 - 3.7 ℃ during the period of 1991 -2005 than that during the period of 1961 - 1990. The change of spring precipitation in all the climatic regions is not so significant and fluctuates in a small range. The spring precipitation was decreased by 5 - 10 mm during the period of 1991 -2005 than that during the period of 1961 - 1990 in east Datong, 10 - 15 mm in the south Xinding Basin and Yuncheng Basin, and more than 15 mm in the Taiyuan Basin. It is notable that the spring precipitation has been increased in northwest Shanxi Province, such situation is advantageous for agricultural production in this region, it, however, is opposite in other two climatic regions.
出处
《干旱区研究》
CSCD
北大核心
2008年第1期64-69,共6页
Arid Zone Research
基金
山西省气象局研究项目(SXKYBQH20082010)
(0622)共同资助
关键词
春季
气候变化
农业生产
山西
spring
climate change
local characteristic
Shanxi Province
