摘要
利用枣庄市1971要2010年的秋季（9要11月）逐日降水资料，采用线性趋势估计、5年滑动平均以及降水距平百分率等方法，分析近40年枣庄市秋季降水变化特征。结果表明：近40年枣庄市秋季降水减少趋势明显，通过显著性检验；枣庄市秋季降水年代际变化较明显，其中1971要1987年为多雨期，1988要2010年为少雨期；枣庄市秋季平均降水量距平百分率为偏旱、偏涝的年份占65%，季平均降水量一般在73~110 mm，大旱年份大于大涝年份10%。枣庄市秋季平均降水量近10年比前30年减少了35%，秋季各旬仅9月中旬较常年偏多108%，其他各旬减少12%~68%，秋季阶段性干旱和连年秋季干旱明显。
Using autumn（September to November）daily precipitation data of 1971-2010 in Zaozhuang City to analyze precipitation variation characteristics.The results showed thatin the past 40 years,autumn precipitation of Zaozhuang City decreased obviously through the significant test;autumn precipitation decadal changed obviously,in which 1971-1987 was wet,1988-2010 was less rain;autumn precipitation anomaly percentage for the drought and flood year was 65%,season average rainfall was generally from 73 mm to 110 mm,big drought year was greater than the big flood year by 10%;autumn precipitation in recent 10 years reduced by 35% comparing with in the previous 30 years,each year in autumn only mid September was 108%more than perennial,other each year to reduced 12%~68%,autumn drought and drought in autumn stage were obviously.
出处
《现代农业科技》
2014年第7期268-269,共2页
Modern Agricultural Science and Technology
关键词
秋季
降水
特征分析
山东枣庄
autumn
precipitation
characteristic analysis
Zaozhuang Shandong
