中国地质大学(武汉)环境学院
纸质出版:2026
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王蓉, 杨逸君, 田书航, 等. 长江中游故道区地下水中有机质对钙富集的指示[J]. 地质科技通报, 2026,45(2):231-239.
王蓉, 杨逸君, 田书航, et al. 长江中游故道区地下水中有机质对钙富集的指示[J]. Bulletin of Geological Science and Technology, 2026, 45(2): 231-239.
王蓉, 杨逸君, 田书航, 等. 长江中游故道区地下水中有机质对钙富集的指示[J]. 地质科技通报, 2026,45(2):231-239. DOI: 10.19509/j.cnki.dzkq.tb20240491.
王蓉, 杨逸君, 田书航, et al. 长江中游故道区地下水中有机质对钙富集的指示[J]. Bulletin of Geological Science and Technology, 2026, 45(2): 231-239. DOI: 10.19509/j.cnki.dzkq.tb20240491.
地下水作为饮用水的重要来源,水中钙含量异常会危害人体生长发育,引发一系列与人体健康相关的疾病。现有研究多聚焦于大气CO
2
参与的无机碳酸平衡过程对钙循环的调控,忽视了有机碳库的重要作用,且不同组分的有机质与钙相互作用的微观机理仍不清楚。以长江中游故道区为研究区,对采集的地下水样品进行了水化学分析、主成分分析、三维荧光光谱平行因子分析和荧光光谱区域积分,研究发现地下水中钙的浓度为111~213 mg/L,其分布呈空间异质性,集中分布于故道区的河曲和牛轭湖等处。并且,钙浓度较高的地下水中具有较高的有机质含量,两者空间分布具有相似性。研究区地下水中有机质包括类蛋白质(组分C1)、微生物源和陆源类腐殖质(组分C2和C3)3种主要组分。随着地下水中钙浓度升高,类蛋白组分含量逐渐减少,类腐殖质组分增多。长江中游故道区埋藏的丰富有机质所形成的强还原环境,有利于有机质中类蛋白组分的微生物降解,这一过程可促进含钙矿物的溶解,是地下水中钙富集的重要控制过程。研究查明了地下水中钙的空间分布特征和赋存环境,刻画了不同钙含量地下水中有机质组成差异,揭示了有机质对钙迁移富集的作用机理。
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Yijun Yang,Yamin Deng,Yanxin Wang.Major geogenic factors controlling geographical clustering of urolithiasis in China[J].Science of the Total Environment,2016.
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