摘要
为了解陕西省蒲城县大气降水中水溶性化学组分及其来源,对2014年2—5月采集的降水样品,用原子吸收分光光度法,测定样品中K^+,Ca^(2+),Na^+,Mg^(2+)的浓度,并对其来源进行初步探讨.结果表明,蒲城县春季降水中阳离子整体浓度偏高,平均浓度由大到小为Ca^(2+),K^+,Na^+,Mg^(2+),总浓度的最高值为20.41μg/L,最低值为13.82μg/L,浓度变化幅度较大.Ca^(2+),K^+主要来自陆源输入,Mg^(2+)的海盐源和陆源贡献相当.降水中离子组分的输入来源可分为区域性的云团输送和云下气团及近地面水汽团.
The article is to understand the water solubility chemical constituent concentration characteristics and its resource of meteoric waters in Pucheng of Shaanxi Province.It measured the concentration of K~＋,Ca^（2＋）,Na~＋,Mg^（2＋） which is collected from rainfall in Pucheng during February to May in 2014 with atomic absorption spectrometry（AAS）,and preliminarily discussed its source.The result shows that,the concentration of positive ion as a whole is high in spring in Pucheng that the average density is Ca^（2＋）,K~＋,Na~＋,Mg^（2＋） in descending order,the maximum value of overall concentration reaches 20.41 mg/L,the minimum value,13.82 mg/L,and the concentration varies in large amount.Ca^（2＋）,K~＋ are mainly from terrestrial source,and Mg^（2＋） has similar sea salt source and terrestrial source.The origin of ion component in the falling rain can be divided into the contribution from territorial cloud cluster and ground surface vapor mass.
作者
刘晖
卢爱刚
Liu Hui;Lu Aigang(College of Resource and Environmental Science,Ningxia University,Yinchuan 750021,China;Key Laboratory for Ecology and Environment of River Wetlands in Shaanxi Province,Weinan 714000,China;College of Agricultural Business,Weinan Normal University,Weinan 714000,China)
出处
《宁夏大学学报（自然科学版）》
CAS
2018年第2期165-169,176,共6页
Journal of Ningxia University(Natural Science Edition)
基金
国家自然科学基金资助项目(41171061
41121001)
陕西省自然科学基金资助项目(2015JZ008)
国家级大学生创新创业训练基金资助项目(201310723004)
关键词
降水化学
相关性
源解析
后向气流轨迹
precipitation chemistry
correlation
source apportionment
backward trajectory
