水文地质工程地质2016，Vol.43Issue(3)：22-28,7.DOI:10.16030/j.cnki.issn.1000-3665.2016.03.05
北京市玉泉山泉恢复条件研究
A study on recovery condition of Yuquanshan spring in Beijing
摘要
Abstract
Xishan karst system is one of the most important wellfields in Beijing which supply an average of 1.5 × 108m3/a.This over-extraction of groundwater has resulted in regional decline of water levels and the cease of Yuquanshan spring for about 42 years.The South-to-North Water Diversion Project may partly mitigate the issue of water shortage of the study area.We analyze the recovery condition of spring based on the hydrologic analysis and the development of a ground-water flow model.The results demonstrate the major recharge sources for the karst aquifer system are areal recharge of rainfall and infiltration of Yongding River bed which contributed around 74.7％ and 25.3％ of total recharge.In addition,the short-term scenario that provides a recovery for the spring is founded to be by reduce current abstraction of karst system from 11290 × 104 to 4282 × 104 m3/a,closing the no-public well of quaternary aquifers and implementing the high artificial recharge rates of 2 × 108m3/a.The recovery of Yuquanshan spring is much more sensitive to variations in recharge than pumpage,which indicates that the management of Xishan karst aquifer system should consider increase artificial recharge to save the spring.关键词
玉泉山泉/南水北调/数值分析/恢复条件/补给Key words
Yuquanshan spring/South-to-North Water Diversion Project/ground-water flow model/recovery condition/recharge分类
地质学引用本文复制引用
王莉蛟,张有全,宫辉力,杨国庆,刘久荣,孙颖..北京市玉泉山泉恢复条件研究[J].水文地质工程地质,2016,43(3):22-28,7.基金项目
国家自然基金项目(41201376) （41201376）
北京岩溶水资源勘查评价工程(BJYRS-ZT-01-03) （BJYRS-ZT-01-03）
