水资源保护2017,Vol.33Issue(1):9-14,16,7.DOI:10.3880/j.issn.1004-6933.2017.01.002
基于同位素水化学分析的松嫩平原大布苏湖流域地下水补给源研究
Study of recharge source of Dabusu Lake in Songnen Plain based on isotopic and hydrochemical analysis
摘要
Abstract
The recharge source of Dabusu Lake was investigated through isotopic and hydrochemical analysis. The results show that Dabusu Lake was mainly recharged by groundwater. δ2 H-δ18 O curves for the lake water, groundwater, and river water in the middle reaches of the Songhua River occurred in the same zone, and the water evaporated to a certain extent. Analysis of the relationship between fluorine and arsenic in the spring water shows that the subsurface runoff that recharged the lake mainly occurred in the fine sand layer 20 m to 30 m under the surface. The volcanic weathering fine particle deposited layer composed the main percolation layer. Arsenic in the volcanic fine particles was dissolved in the groundwater through oxidation-reduction reaction, and an aquifer with a high concentration of arsenic was formed. On these bases, it can be inferred that the lake water comes from the seepage of the Songhua River and surrounding rivers, and the seepage water flows through the fine sand layer with a high concentration of arsenic and then discharges into Dabusu Lake. The travertine in the lake center indicates that there is also leakage recharge of deep confined water.关键词
地下水/同位素分析/水化学分析/氟/砷/补给源/大布苏湖Key words
groundwater/isotope analysis/hydrochemical analysis/fluorine/arsenic/recharge source/Dabusu Lake分类
天文与地球科学引用本文复制引用
张文卿,陈建生,姜淑坤,徐燚..基于同位素水化学分析的松嫩平原大布苏湖流域地下水补给源研究[J].水资源保护,2017,33(1):9-14,16,7.基金项目
国家自然科学基金(51578212) (51578212)
吉林省水利厅原始创新项目(吉林省西北部深循环地下水补给径流排泄量调查研究) (吉林省西北部深循环地下水补给径流排泄量调查研究)