| 乌鲁木齐市降水酸度及化学特征的初步研究 |
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| 引用本文： | 李德忱.乌鲁木齐市降水酸度及化学特征的初步研究[J].干旱环境监测,1990(3). |
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| 作者姓名： | 李德忱 |
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| 作者单位： | 乌鲁木齐市环境科学研究监测中心站 乌鲁木齐 |
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| 摘 要： | 降水酸度和离子平衡研究结果表明,乌鲁木齐市降水为非酸性雨,但其PH值有较明显的季节变化,降水中的SO_4~(2-)、Ca~(2+)、和NH_4~+是影响酸度的关键离子,与其他地区相比,乌鲁木齐市降水中的Ca~(2+)浓度是酸雨区(贵阳、重庆)平均值的3.50倍,是非酸雨区(北京、天津)平均值的1.86倍。可见,乌鲁木齐市降水酸度的高低,不仅取决于酸性离子浓度,而且更重要的是取决于碱性离子浓度。
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| 关 键 词： | 降水酸度 离子浓度 |
PRELIMINARY STUDIES ON ACIDITY AND CHEMICAL CHARACTERISTICS OF PERCIPITATION IN URUMQI CITY |
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| Li Dechen.PRELIMINARY STUDIES ON ACIDITY AND CHEMICAL CHARACTERISTICS OF PERCIPITATION IN URUMQI CITY[J].Arid Environmental Monitoring,1990(3). |
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| Authors: | Li Dechen |
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| Institution: | Urumqi Environmental Science Research and Moniting Central Station |
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| Abstract: | Precipitation acidity and ion balance study shows that the precipitation of Vrumqi city is not acid cain. There is more obvious season change in the PH Value of the precipitation.SO42-. Ca2+ and NH4+ in the precipitation are key ions to effect acidity .The Ca2+ coneentration of Urumqi is 3.5 times of the average value of the acid rain areas(Guiyang,Caongqing) and 1.86 times of the no acid rain area (Beijng,Tianjin),It is clear that precipitation acidity is not decided on acid ion concentrations only,bui mainly decided on bask ion concentrations. |
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| Keywords: | Prccipitation acidity ion concentration |
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