干旱区生态环境知识资源中心(Arid): 宁夏清水河上游浅层地下水咸化作用研究

Arid

	宁夏清水河上游浅层地下水咸化作用研究
其他题名	Study on the Salinization Mechanism of Shallow Groundwater along the Upstream Qingshui River in Ningxia
	王雨山 1; 李戍 1; 孟莹 2; 程旭学 1
来源期刊	现代地质
ISSN	1000-8527
出版年	2017
卷号	31 期号:1 页码:191-199
中文摘要	认识干旱区地下咸水的形成机制对水资源管理和规划具有重要意义。在宁夏清水河平原上游采集52组浅层地下水化学样品和8组易溶盐样品,分析了地下水咸化的水文地球化学作用,利用元素质量平衡法计算了各作用对地下水盐分的贡献比率。结果表明: 沿径流方向,地下水咸化程度呈增加趋势。咸化作用主要为岩石风化,并具空间分异,在补给区以碳酸盐风化为主,在强径流区硫酸盐风化占优,在弱径流区硫酸盐和岩盐风化共同提供了68% ~ 93% 的盐量。随着地下水TDS 增加,蒸发岩贡献比率上升,碳酸盐和硅酸盐贡献比率下降。蒸发岩风化是导致浅层地下水咸化的首要因素。
英文摘要	Research on salinization mechanism of groundwater in arid areas is of great significance for water resources management. Fifty-two groundwater samples and eight rock samples were taken from the upstream Qingshui river plain in Ningxia. Hydrogeochemical processes controlling groundwater salinization were studied and their contribution ratios to salinity were calculated using element mass balance method. The results show that the salinization extent increased along groundwater flow path. The salinization processes mainly depended on rock weathering and had a spatial variation. Carbonate weathering played a dominant role in recharge area and sulfate weathering in strong runoff area. In slow runoff area,68-93 percents of total salt were supplied by sulfate and halite weathering. The contribution ratios of evaporite increased with groundwater TDS,while carbonate and silicate had an opposite trend,which indicated that evaporite weathering controlled groundwater salinization.
中文关键词	地下水咸化 ; 岩石风化 ; 蒸发岩 ; 质量平衡 ; 宁夏清水河
英文关键词	groundwater salinization rock weathering evaporite mass balance Qingshui river in Ningxia
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MINERALOGY
WOS研究方向	Mineralogy
CSCD记录号	CSCD:5928825
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236842
作者单位	1.中国地质调查局水文地质环境地质调查中心, 保定, 河北 071051, 中国; 2.吉林大学环境与资源学院, 长春, 吉林 130021, 中国
推荐引用方式 GB/T 7714	王雨山,李戍,孟莹,等. 宁夏清水河上游浅层地下水咸化作用研究[J],2017,31(1):191-199.
APA	王雨山,李戍,孟莹,&程旭学.(2017).宁夏清水河上游浅层地下水咸化作用研究.现代地质,31(1),191-199.
MLA	王雨山,et al."宁夏清水河上游浅层地下水咸化作用研究".现代地质 31.1(2017):191-199.