沈阳市1951-2014年降水变化特征分析  

Analysis on the Characteristics of Precipitation in Shenyang City from 1951 to 2014

作　　者：张巍 高桐[2] 

机构地区：[1]沈阳市沈北新区气象局,辽宁沈阳110121 [2]沈阳市气象局,辽宁沈阳110168

出　　处：《安徽农学通报》2015年第10期153-155,共3页Anhui Agricultural Science Bulletin

基　　金：辽宁省"十二五"科学技术重大项目"主要农业气象灾害发生规律及预警和评估机制研究"(2011210002)

摘　　要：利用沈阳市1951-2014年降水资料,运用气候统计诊断分析方法,研究了沈阳市近64a降水变化特征。结果表明：沈阳市5~9月是年降水量减少的主要时间段,平均每10a减少约24.471mm,近64a降水线性减少达156.6mm,在1975、1976年出现气候突变,突变后的1976-2014年比突变前的1951-1975年降水量平均减少99.3mm;春季表现为增加趋势,平均每10a增加12.0mm。分析结果对沈阳市水资源可持续开发、中长期降水评估、农业结构调整具有参考意义。Through 1951-2014 annual precipitation data and the analysis method of climatological statistical diagno- sis, the characteristics of precipitation in Shenyang city were studied in 64a. The results showed that ： Shenyang rain- fall from May to September is the main annual precipitation decrease period, the average reduction per 10a approxi- mately 24.471mm, near 64a precipitation decreases linearly reached 156.6mm, in 1975, 1976 appears abrupt cli- mate change, mutated 1976-2014 mutation before 1951 year on year- 1975, an average reduction of rainfall 99.3mm; spring showed an increasing trend, with an average increase of 12.0mm every 10 years. The results for the sustainable development of water resources in Shenyang city, the long-term precipitation assess the adjustment of ag- ricultural structure reference value.

关 键 词：降水 特征 趋势 沈阳市 

分 类 号：P333[天文地球—水文科学]