江西省降水集中期及其期间降水量的变化特征及趋势分析  

The Characteristic and the Trend of the Concentrative Period of Precipitation and the Precipitation

作　　者：杨爱萍[1] 杜筱玲[1] 

机构地区：[1]江西省气象台,江西南昌330046

出　　处：《安徽农业科学》2011年第4期2048-2050,共3页Journal of Anhui Agricultural Sciences

基　　金：江西省科技攻关计划项目

摘　　要：根据江西省地方标准中有关降水集中期的定义,统计1971~2008年4~9月的降水集中期,并用季节性Kendall检验方法做趋势分析。结果表明,1971~2008年4~9月期间,6~8月是降水集中期及其期间雨量较多的月份,4、5、9月是降水集中期及其期间雨量较少的月份。随时间变化,全省6~8月降水集中期及其雨量呈可能增多趋势,4、5、9月呈可能下降趋势。According to the definition of precipitation concentration period（PCP） defined by regional standard in Jiangxi Province,the characteristics and the trend of the Concentrative Period of Precipitation and the precipitation were analyzed in this paper based on the data of the daily precipitation fromApril to September in 1971-2008 and the trend analysis with seasonal Kendall testmethod.The results indicated that： the periods from April to September and June to August from 1971 to 2008 were the concentrative precipitation period with largest precipitation.April,May,and September also were the concentrative precipitation period butwith less precipitation.With the changes of time,the amounts of the concentrative period of precipitation and the precipitation from June to August showed a trend of increase,while in April,May,and September it was decreasing.

关 键 词：降水集中期 降水量 季节性Kendall趋势分析 

分 类 号：S422[农业科学—植物保护]