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标题

黑河流域地下水电导率空间分异特征及影响因素研究

作者

阮云峰 赵良菊 姚治君 肖洪浪 程国栋

机构

中国科学院地理科学与资源研究所; 西北大学城市与环境学院; 中国科学院寒区旱区环境与工程研究所, 中国科学院内陆河流域生态水文重点实验室; 中国科学院寒区旱区环境与工程研究所, 中国科学院冻土工程国家重点实验室; 中国科学院大学

摘要

黑河流域是我国西北干旱区的第二大内陆河流域, 地下水电导率γ的研究对保护流域地下水资源, 减少流域生态环境的破坏具有重要的现实意义. 通过对黑河流域地下水γ的空间变化及其与主要离子的关系进行分析, 结果表明: 1)整体上, 上游浅层及深层地下水γ均较低, 明显低于中下游地区, 中游浅层地下水γ明显高于深层地下水, 下游浅层与深层地下水γ差异不大; 2)从区域上来看, 中游干流地区浅层地下水γ沿流程呈增加趋势, 中、下游沿河道附近浅层地下水γ高于距河道较远地区, 上游及中游山前平原地区深层地下水γ较低, 明显低于中游细土平原地区, 下游居延海—中蒙边界地区与狼心山—额济纳旗城河道附近地区的深层地下水γ存在明显差异; 3)地下水γ与各主要离子的关系表明, 上游山区地下水γ主要受到Na+、Cl- 浓度的影响, 中、下游地区地下水γ主要受到 Na+ 、Cl- 和SO2- 浓度的影响. 此外, 中游距河道较远地区的深层地下水γ以及下游沿河道附近的浅层及深层地下水γ均受到了农业灌溉活动的

关键词

黑河流域;地下水电导率;空间分异;主要离子

引用

阮云峰 赵良菊 姚治君 肖洪浪 程国栋. 黑河流域地下水电导率空间分异特征及影响因素研究.[J]. 北京师范大学学报(自然科学版),2016,52(3)289-296.

基金

国家自然科学基金资助项目(41571025 , 91325102 , 91025016 , 91125025); 陕西省自然科学基础研究计划资助项目(2016JM4006)

分类号

P332.7

DOI

10.16360/j.cnki.jbnuns.2016.03.007

Title

Spatial differentiation characteristics and impact factors of ground water conductance in the Heihe River basin

Author

RUAN Yunfeng, ZHAO Liangju, YAO Zhijun, XIAO Honglang, CHENG Guodong

Affiliations

Institute of Geographic Sciences and Natural Resources Research , Chinese Academy of Sciences; College of Urban and Environmental Science, Northwest University; Cold and Arid Regions Environmental and Engineering Research Institute , Key Laboratory of Ecohydrology of Inland River Basin , Chinese Academy of Sciences; Cold and Arid Regions Environmental and Engineering Research Institute , State Key Laboratory of Frozen Soil Engineering , Chinese Academy of Sciences; University of Chinese Academy of Sciences

Abstract

Heihe River is the second largest inland river basin in arid regions of north west China . Study on ground water conductance of the Heihe River basin has important significance in protecting its ground water resource and reducing destruction of ecological environment . Characterization of spatial variation of ground water conductance and its relation with major ions revealed that shallow and deep gr ound water in the upper reaches showed low conductance values , lower than in the middle and lower reaches . Shallow ground water in the middle reaches showed higher conductance than deep ground water , but there was little difference between shallow and deep ground waters in the lower reaches . Regionally , conductance of shallow ground water in main stream of the middle reaches increased along the flow path . In the middle and lower reaches , shallow ground water samples near the river channel had higher conductance than samples far away from the river channel . Conductance of shallow and deep ground waters of the upper reaches and piedmont plain were lower , significantly lower than in the fine soil plain area of the middle reaches . In the lower reaches , deep ground water conduct ance along the river channel from Langxin Mountain to Ejina city was significantly different from areas from Juyan Lake to China-Mongolia border region . Relationship between ground water conductance and major ions revealed that ground water conductance in mountainous area of the upper reaches was mainly due to Na+ and Cl-, but mainly attributed to Na+, Cl- and SO42- in the middle and lower reaches . In addition , samples of deep ground water in the middle reaches far away from the river channel and samples of shallow and deep ground water near river channel in the lower reaches were also affected by agricultural irrigation activities .

Key words

Heihe River basin ; ground water conductive ; spatial differentiation ; major ions

cite

RUAN Yunfeng, ZHAO Liangju, YAO Zhijun, XIAO Honglang, CHENG Guodong. Spatial differentiation characteristics and impact factors of ground water conductance in the Heihe River basin [J]. Journal of Beijing Normal University (Natural Science), 2016,52(3):289-296.

DOI

10.16360/j.cnki.jbnuns.2016.03.007

Copyright © 2014 Journal of Beijing Normal University (Natural Science)
Designed by Mr. Sun Chumin. Email: cmsun@mail.bnu.edu.cn