山西近45年降水变化对旱涝的影响分析  

Analysis to Affections of Precipitation Variation in Recent 45 Years to Drought and Waterlogging in Shanxi

作　　者：王涛[1] 朱敏嘉 崔爱萍 王计川[4] 

机构地区：[1]山西省大气探测技术保障中心,山西太原030002 [2]山西省气象决策服务中心,山西太原030006 [3]汾西县气象局,山西汾西031500 [4]山西省气候中心,山西太原030006

出　　处：《山西农业科学》2010年第12期61-63,共3页Journal of Shanxi Agricultural Sciences

摘　　要：采用z指数及距平百分率等计算方法,对山西年降水、主要降水期的降水量进行分析,结果表明,1964年是山西年降水量最多年份,1988年是暴雨最多年份,1965,1997年是山西北、中部与中、南部降水量最少年份。近45年,山西年降水量与主要降水期的降水量明显减少,干旱趋势呈增多趋势,且旱年造成的影响大于涝年,这应引起政府部门的高度重视,进一步趋利避害,为农业生产提供防灾减灾合理化建议及对策。With the calculation methods of z index and anomaly percent,annual precipitation and precipitation during the main rainfall periods were analyzed.The results showed that,the year of 1964 was the year for Shanxi had the most precipitation,1988 the most rainstorm,1965 in north and center parts and 1997 in center and south parts the lest precipitation.In addition,in recent 45 years the annual precipitation in Shanxi had decreased considerably and the droughts showed an rising tendancy and brought bigger influence than that from water logging years.To provide reasonable suggestion and measures,close attention from the government is wanted to avoid damage and get benefit for agricultural production.

关 键 词：山西 降水 旱涝 特征 分析 

分 类 号：S161.6[农业科学—农业气象学]