摘要
基于1971~2015年邯郸市统计资料与气象数据,采用一元回归分析、Maan-kendall突变分析、小波方差和Pearson相关性分析方法,阐释了近55年来区域水资源变化趋势,探究了邯郸市水资源变化趋势及其与气候环境因素的关系。结果表明;近50年来邯郸市水资源呈弱的减少趋势(y=-0.0242x+65.024,F,2.32,R2=0.1904),但并不显著(P>0.05);水资源年际特征在1973年发生突变,但未通过5%水平检验;其主要时间变化周期为3,10a,并且与降水、蒸发等因素存在复杂嵌套关系。区域水资源总量与降水量呈高度相关,与温度、蒸发未表现出线性相关性。
Based on the statistical data and meteorological data of handan city from 1971 to 2015,this paper explores the changing trend of water resources in handan city and its relationship with climatic and environmental factors by using one-dimensional regression analysis,maan-kendall mutation analysis,wavelet variance and Pearson correlation analysis.The results show that;In the past 50 years,the water resources in Handan City have shown a weak reduction trend(y=-0.0242x+65.024,F,2.32,R2=0.1904),but it is not significant(P>0.05);The annual characteristics of water resources mutated in 1973 but failed to pass the 5%level test;Its main time change period is 3,10a,and there is a complex nested relationship with factors such as precipitation and evaporation.The total water resources in the region were highly correlated with precipitation,but not with temperature and evaporation.
作者
赵国丽
ZHAO Guo-li(Hebei Handan Hydrographic Resources Survey Bureau,Handan 056001,China)
出处
《水科学与工程技术》
2019年第4期51-53,共3页
Water Sciences and Engineering Technology
关键词
水资源
气候因子
关系
时序变化
water resources
climate factors
relationship
time series changes