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我国北方典型岩溶地下水位对降水及气象指数的响应特征——以鲁中地区为例
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引用本文:李传生,祁晓凡,王雨山,安永会,邢立亭.我国北方典型岩溶地下水位对降水及气象指数的响应特征——以鲁中地区为例[J].中国岩溶,2019,(5):643-652. LI Chuansheng,QI Xiaofan,WANG Yushan,AN Yonghui,XING Liting.Response characteristics of typical karst groundwater levels of central Shandong Province to precipitation and climatic index[J].Carsologica Sinica,2019,(5):643-652.
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作者单位
李传生 山东省地质测绘院济南 250002 
祁晓凡 中国地质调查局水文地质环境地质调查中心河北 保定 071051 
王雨山 中国地质调查局水文地质环境地质调查中心河北 保定 071051 
安永会 中国地质调查局水文地质环境地质调查中心河北 保定 071051 
邢立亭 济南大学水利与环境学院济南 250022/山东省地下水数值模拟与污染控制工程技术研究中心济南 250022 
基金项目:国家自然科学基金项目(41772257);中国地质调查局地质大调查项目(DD20190300)
中文摘要:我国北方岩溶水资源是其经济社会发展的重要资源基础,表征水资源赋存特征的岩溶地下水位动态及其影响因素分析能够为岩溶水资源管理及合理开发利用提供重要支撑。本文选取鲁中地区3个典型水文地质单元,基于2010-2017年月值降水、地下水位及NPI气象指数数据,采用小波分析方法对上述指标的周期性、响应特征及遥相关特征进行了分析。结果表明:(1)各岩溶地下水位动态、降水与NPI的主波动周期均为1 a,其显著周期与分布时段等的异同是受自然条件和人类活动共同作用的结果。(2)各水文地质单元岩溶水位对降水的响应时滞为95.81~146.64 d,其差异主要源于观测站所处的地下水流系统的位置的不同。(3)NPI与降水存在一定的遥相关,与受降水影响的岩溶水位动态也存在遥相关。各岩溶水位对NPI的遥相关时滞为111.75~169.77 d,相比水位对降水时滞有所增加。鲁中岩溶地区地下水位对降水与NPI存在规律性的响应时滞,此种特征可为我国北方岩溶地下水位的预警预报提供帮助。
中文关键词:地下水位  降水  气象指数  周期性  小波分析
 
Response characteristics of typical karst groundwater levels of central Shandong Province to precipitation and climatic index
Abstract:Karst water resources in northern China is an important resource basis for economic and social development of its distribution area. The analysis of the dynamics of karst groundwater levels and its influencing factors can provide important supports for the management and rational development and utilization of the karst water resources, which is of practical significance. In this paper, 3 typical hydrogeological units in central Shandong Province are selected as the study area, and based on monthly data of precipitation, groundwater levels and NPI climatic index from 2010 to 2017, the periodicities, response characteristics and teleconnections of the above indices are analyzed by wavelet analysis methods. The results show that: ①The main fluctuation periods of the karst groundwater level dynamics, precipitation and NPI are all 1a, and the similarities and differences of the significant periods and the distribution time are the results of the combination of natural conditions and human activities. ②The response time lags of karst water levels to precipitation in the hydrogeological units are 95.81~146.64 d, and the differences mainly originate from the different monitoring positions of the groundwater flow systems. ③There are teleconnections between NPI and Zibo precipitation, and there are also teleconnections between NPI and the karst groundwater dynamics, which are mainly affected by precipitation. The time delays of karst groundwater levels to NPI are 111.75~169.77d, which are a bit longer than the time delays of precipitation and the groundwater levels. Recognizing the regular response characteristics of the karst groundwater levels to precipitation and NPI can provide assistance for the early warning and prediction of karst groundwater levels in northern China.
keywords:groundwater level, precipitation, climatic index, periodicity, wavelet analysis
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