摘要
利用菏泽市1981～2010年各县区月、年降水资料,对厄尔尼诺年及其次年降水的特征与旱涝灾情进行分析,结果表明,菏泽市年降水量,El Nino年普遍偏少,El Nino次年普遍偏多;不同年份的El Nino事件对菏泽市降水影响不同,1997、2002年强El Nino事件造成年降水量异常偏少;在El Nino次年中1984、1993、2003年年降水量异常偏多;由于受1987年跨年度El Nino事件影响,1988年年降水量异常偏少;四季降水中,El Nino年的春季无异常;夏、秋、冬季降水普遍偏少,3个季节的30年极小值均出现在El Nino年;El Nino次年四季降水均偏多,春、夏、秋季较明显。El Nino年多旱灾,其次年多涝灾。
The characteristics of precipitation and drought-flood disasters during El Nino events year and the following year were analyzed based on the precipitation measurements in Heze between 1981 to 2010, including monthly and annual data obtained from different counties. The results indicated that the annual precipitation in Heze generally decreased in El Nino year and increased in the following year; the influence of El Nino events on Heze precipitation was different in different years, the annual precipitation obviously decreased in 1997 and 2002 when strong El Nino events happened, and yet the annual precipitation obviously increased in the years of 1984, 1993, and 2003 following El Nino events; the precipitation in spring during El Nino events year and in the following years was as usual, however, the minimal precipitation of summer, autumn, and winter appeared in El Nino years; drought disasters usually happened in El Nino years and more flood disasters in the following years.
出处
《安徽农业科学》
CAS
2012年第28期13891-13893,共3页
Journal of Anhui Agricultural Sciences
