大气降水化学的统计学分析——以浙江省金华市为例
CHEMOMETRIC ANALYSIS OF ATMOSPHERIC PRECIPITATION-A CASE STUDY OF JINHUA CITY OF ZHEJIANG PROVINCE
查看参考文献20篇
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文摘
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运用相关分析、因子分析和聚类分析等统计学方法,对2004-2005年间浙江省金华市的大气降水化学组成和分布特征进行了分析.结果表明,SO~(2-)_4,NH~+_4,Ca~(2+),NO~-_3和H~+是降水的主要离子,降水的pH值、电导率及离子组分均呈明显的正偏态分布,降水样品以低离子含量的样本为主.降水中水溶性离子主要分为4类,SO~(2-)_4,NH~+_4,NO~-_3,Ca~(2+)和F~-主要来自人为活动的贡献,K+和Mg2+主要来自土壤、沙尘等地壳来源,Na+和Cl-属于典型的海盐性成分,H+则反映了各种离子中和作用对降水酸度的综合影响. |
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其他语种文摘
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This present paper applies statistical methods such as regression analysis, factor analysis and cluster analysis to investigate the characteristics and distribution of precipitation chemistry of Jinhua in the central region of Zhejiang province during 2004—2005. Results indicate that SO~(2-)_4,NH~+_4,Ca~(2+),NO~-_3,H+ are the major ions in the precipitation. Skewness calculations for pH, EC and all the ions have given a positive value that indicates a right asymmetric shape of the data distribution. On the other hand, it represents that the majority of rainwater samples have low ionic concentrations. Four categories of water-soluble ions in rainwater have been identified with different potential sources:SO~(2-)_4,NH~+_4,F~-,Ca~(2+),NO~-_3(anthropogenic pollutants),K~+ and Mg~(2+)(soil and dust sources),Na~+ and Cl~- (seasalt components),H+(acidity). |
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来源
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环境化学
,2007,26(5):699-703 【核心库】
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关键词
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大气降水
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统计学
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因子分析
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聚类分析
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地址
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1.
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002
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金华市环境监测中心站, 金华, 321000
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0254-6108 |
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学科
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环境科学基础理论 |
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基金
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浙江省科技计划项目
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浙江省金华市科技基金资助项目
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文献收藏号
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CSCD:2922990
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