摘要
根据新疆维吾尔自治区南疆地区47个气象观测站点1961-2013年逐月的降水量观测资料,运用Mann-Kendall非参数检验法与降水量距平百分率从时间上分析了南疆地区的降水规律,并运用surfer9.0做出了年与季节降水量的等值线图,对南疆地区降水量进行了空间变化分析。结果表明,南疆地区近53年来降水量总体呈增加的趋势,降水量的年际变化较大;降水量集中在春、夏两季,但以夏季为主;降水空间分布非常不均衡,主要集中在北部地区,中部降水稀少。
According to the precipitation data of 47 typical meteorological stations in the southern Xinjiang Uygur autonomous region from 1961 to 2013,this paper analyzed the changing characteristics of precipitation by using Mann-Kendall rank analysis method and precipitation anomaly percentage to finish examination of annual and seasonal precipitation trends in research region. In addition,the isograms of annual and seasonal rainfall were drawn through surfer9.0 to analyze the spatial change of precipitation in research region. The results showed that,the precipitation in research region in recent 53 years showed an increasing trend,the annual variation of precipitation was relatively large. Rainfall concentrated in spring and summer,but mainly in summer. The spatial distribution of precipitation was very uneven,mainly concentrated in the northern region,central precipitation was scarce.
出处
《湖北农业科学》
2016年第21期5496-5499,共4页
Hubei Agricultural Sciences
