摘要
利用济南市1951—2019年月降水资料及1993—2019年地下水位月动态观测资料,通过滑动平均、STL时间序列分解和Mann-Kendall趋势检验等方法,对济南市降雨和地下水动态特征进行研究。结果表明:(1)降雨量自1986年起呈总体持续上升趋势,地下水位自2007年起则呈现持续下降趋势;(2)济南市降雨与地下水水位均呈现明显的周期性,揭示出降雨仍然是地下水含水层的主要补给来源;第四系和岩溶含水层的水位波动趋势基本一致,说明两个含水层水力联系密切;(3)降雨量以年均1.39 mm/a的速率增加,但第四系和岩溶地下水位分别以年均0.1 m/a和0.03 m/a的速率下降,说明济南市地下水短缺形势依然较为严峻;地下水水位在春季和冬季均呈下降趋势,说明要加强春耕时大量抽取地下水用于农业灌溉等活动的监测和控制。
Based on the monthly precipitation(from 1951 to 2019)and groundwater level(from 1993 to 2019)data of Jinan City,this paper analyzed the dynamic characteristics of precipitation and groundwater by applying Moving average,STL and Mann-Kendal methods.Results showed that:(1)precipitation had a continued increasing trend after 1986 while groundwater level had shown a continued decreasing trend after 2007;(2)both precipitation and groundwater level show obvious periodicity,revealing precipitation is still the main recharge source of groundwater aquifers;water level fluctuation trends of Quaternary and Karst aquifers are basically the same,indicating the Quaternary aquifers are closely connected with the Karst aquifers;(3)precipitation increases at an average annual rate of 1.39 mm/a,but the Quaternary and the Karst groundwater levels decrease at an average annual rate of 0.1 m/a and 0.03 m/a respectively,indicating that the situation of groundwater shortage in Jinan City is still severe;groundwater level shows a decreasing trend in both spring and winter,indicating that monitoring and control measures of groundwater exploitation for agricultural irrigation during spring should be strengthened.
作者
赵振华
罗振江
黄林显
邢立亭
孙虹洁
陈焕良
孙斌
ZHAO Zhenhua;LUO Zhenjiang;HUANG Linxian;XING Liting;SUN Hongjie;CHEN Huanliang;SUN Bin(801 Institute of Hydrogeology and Engineering Geology,Shandong Provincial Bureau of Geology&Mineral Resources,Jinan 250014,China;Shandong Engineering Research Center for Environmental Protection and Remediation on Groundwater,Jinan 250014,China;School of Water Conservancy and Environment,University of Jinan,Jinan 250022,China;Engineering Technology Institute for Groundwater Numerical Simulation and Contamination Control,Jinan 250022,China)
出处
《水文》
CSCD
北大核心
2022年第6期73-77,共5页
Journal of China Hydrology
基金
国家自然科学基金资助项目(42272288)
山东省自然科学基金资助项目(ZR2019MD029)
山东省高校院所创新团队项目(2021GXRC070)
院科研基金(801KY202004)。
关键词
济南市
降雨量
地下水动态
时序分析
Jinan City
precipitation
groundwater dynamic characteristics
time series analysis
