摘要
神头泉流量自七十年代初以来不断衰减。本文采用混合回归的随机模型,分别就降水量与松散层地下水开采量对泉流量的影响进行了时间序列分析。结果表明:泉流量变化具有周期性和滞后性;降水量对泉流量衰减影响很小;开采松散层地下水是引起泉流量衰减的主要原因之一。此外,深层岩溶水开采量(包括采煤排水)及泉口取水量的增大也是引起1985年之后泉流量衰减的主要原因。
The discharge of Shentou Spring has been declining day by day since 1970. A multi-regression model is applied to time series analysis for the declining discharge of Shentou Spring in consideration of the effects of precipitation and groundwarer extraction from alluvium respectively. The analysis shows that the discharge changes periodically and continuously. The groundwater extraction from alluvium is one of the most important factors which cause the discharge declining of Shentou Spring,but the effect of precipitation may be neglected. In addition, the increasing extractions from karst aquifer and spring mouth also may be important factors which cause the serious declining of discharge after 1985.
出处
《中国岩溶》
CAS
CSCD
北大核心
1993年第2期123-132,共10页
Carsologica Sinica
基金
"七五"国家攻关57项(华北及山西能源基地水资源研究>有关<平朔煤电基地水资源供需分析>专题
关键词
神头泉
流量
岩溶水
时间序列分析
Shentou Spring, decling discharge, pore water, karst water, time series analysis, multi-regression model.
