喀什平原区地下水氢氧稳定同位素分布特征及意义
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摘要
为系统研究喀什平原区第四系孔隙水补、径、排条件,搞清地下水资源量和供水潜力,在充分了解水文地质条件基础上,采用对比分析方法,分析喀什平原区地下水稳定同位素(D、~(18)O)特征。研究表明,区内地下水补给主要来自大气降水,部分较低的D、~(18)O同位素组成来自山区贫重同位素冰雪融水及基岩裂隙水的补给。山前冲洪积平原潜水和冲积细土平原承压水分属不同地下水流系统。南部盖孜河地下水多来源于西昆仑高山区,细土平原区部分地下水来源于南部中低山丘陵区。研究区北部克孜勒河地下水来源于西南天山。
In order to study the recharge, diameter and discharge conditions of Quaternary pore water in Kashi plain area, and in order to identify the amount of groundwater resources and the potential of water supply. On the basis of fully understanding hydrogeological conditions, the characteristics of stable isotopes(D,~(18)O) of groundwater in Kashi plain were analyzed by means of comparative analysis. Research shows that the groundwater recharge sources mainly come from precipitation; D and ~(18)O isotopes lower from mountain snow melt and depleted in heavy isotopes of bedrock fissure water recharge; piedmont alluvial plain and alluvial diving fine soil plain bearing water respectively belong to different groundwater flow systems; groundwater in Gaizi River groundwater flow system comes mostly from the West Kunlun mountains, but there are some groundwater from the hilly area of Southern in fine soil plain; groundwater flow system in northern Kezile groundwater in the study area are from the Southwest Tianshan mountains.
In order to study the recharge, diameter and discharge conditions of Quaternary pore water in Kashi plain area, and in order to identify the amount of groundwater resources and the potential of water supply. On the basis of fully understanding hydrogeological conditions, the characteristics of stable isotopes(D,~(18)O) of groundwater in Kashi plain were analyzed by means of comparative analysis. Research shows that the groundwater recharge sources mainly come from precipitation; D and ~(18)O isotopes lower from mountain snow melt and depleted in heavy isotopes of bedrock fissure water recharge; piedmont alluvial plain and alluvial diving fine soil plain bearing water respectively belong to different groundwater flow systems; groundwater in Gaizi River groundwater flow system comes mostly from the West Kunlun mountains, but there are some groundwater from the hilly area of Southern in fine soil plain; groundwater flow system in northern Kezile groundwater in the study area are from the Southwest Tianshan mountains.
引文
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(1)新疆地矿局第二水文工程地质大队.新疆喀什经济开发区水文地质环境地质调查评价报告,2015
[2]朱宏,周宏飞,陈小兵,等.新疆喀什地区的地下水资源特征分析[J].干旱区研究,2005,22(2):152-156.
[3]热汗古丽·吾买尔,满苏尔·沙比提,陆吐布拉·依明.喀什地区近10年地下水资源时空动态变化分析[J].干旱区资源与环境,2011,25(7):63-68.
[4]高晶,郝爱兵,魏亚杰,等.河套平原中东部地下水的环境同位素特征分析[J].水文地质工程地质,2009,36(3):55-58.
[5]李云,姜月华,周迅,等.扬泰靖地区地下水硫同位素组成特征及其意义[J].水文地质工程地质,2010,37(4):12-17.
[6]徐慧珍,李文鹏,殷秀兰,等.济南泉域浅层地下水水化学同位素研究[J].水文地质工程地质,2008,35(3):65-69.
[7]陈宗宇,万力,聂振龙,等.利用稳定同位素识别黑河流域地下水的补给来源[J].水文地质工程地质,2006,33(6):9-14.
[8]陆徐荣,泉锦旗,王彩会,等.同位素技术释解苏锡常地区浅层地下水水循环机制[J].水文地质工程地质,2006,33(4):52-55.
[9]Matthew Currell,韩冬梅,Ian Cartwright,等.运城盆地地下水同位素年龄特征及其演化过程和可持续利用[J].水文地质工程地质,2012,39(6):1-5.
[10]王恒纯.同位素水文地质概论[M].北京:地质出版社,1991.
[11]陈宗宇,齐继祥,张兆吉,等.北方典型盆地同位素水文地质学方法应用[M].北京:科学出版社,2010.
(1)新疆地矿局第二水文工程地质大队.新疆喀什经济开发区水文地质环境地质调查评价报告,2015