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石羊河流域降水化学特征时空变化及来源浅析
引用本文:李宗杰,宋玲玲,田青,罗振宇,李永格. 石羊河流域降水化学特征时空变化及来源浅析[J]. 地球与环境, 2016, 44(6): 637-646
作者姓名:李宗杰  宋玲玲  田青  罗振宇  李永格
作者单位:;1.甘肃农业大学林学院;2.冻土工程国家重点实验室中国科学院西北生态环境资源研究院
基金项目:甘肃省杰出青年基金项目(1506RJDA282);中国科学院"西部之光"西部博士项目;中国博士后管委会博士后国际交流计划项目(20140043);中国科学院青年创新促进会项目(2013274)
摘    要:运用相关分析、因子分析、富集因子和HYSPLIT模型对石羊河流域从2013年7月到2014年7月连续收集降水样品的主要离子浓度特征及来源进行了探讨分析,结果表明,Ca~(2+)和Na~+是主要的阳离子,SO_4~(2-)和NO_3~-是主要的阴离子,石羊河流域的主要降水类型为SO_4~(2-)-NO_3~--Ca~(2+);石羊河流域的总离子浓度的季节大小变化顺序为冬季春季秋季夏季,石羊河流域的降水水化学主要受地壳源和人为源的影响;石羊河流域的降水类型分为季风降水、西风降水和混合降水,而混合降水是石羊河流域的主要降水类型,其次为西风降水,最后为季风降水。

关 键 词:降水化学  离子组成  时空变化  石羊河流域
收稿时间:2016-04-06
修稿时间:2016-05-04

Spatial and Temporal Variation of Chemical Characteristics and Source Analysis of Precipitation of Shiyang River Basin
LI Zongjie,SONG Lingling,TIAN Qing,LUO Zhengyu,LI Yongge. Spatial and Temporal Variation of Chemical Characteristics and Source Analysis of Precipitation of Shiyang River Basin[J]. Earth and Environment, 2016, 44(6): 637-646
Authors:LI Zongjie  SONG Lingling  TIAN Qing  LUO Zhengyu  LI Yongge
Affiliation:1. College of Forestry, Gansu Agricultural University, Lanzhou 730070, China;2. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environmental and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
Abstract:This paper discussed the chemical characteristics and possible source of major ions in precipitation of Shiyang River Basin from July 2013 to July 2014 by using correlation analysis, factor analysis, enrichment factor and HYSPLIT model. Results show that Ca2+ and Na+ are main cations, and SO42- and NO3- are main anions. The main precipitation types in Shiyang River Basin is SO42--NO3--Ca2+. The order of seasonal total ions concentration of Shiyang River Basin is winter > autumn > spring > summer. Precipitation chemistry of Shiyang River Basin is mainly affected by crustal and anthropogenic sources; Type of precipitation of Shiyang River basin can be divided into monsoon precipitation, western precipitation and mixed precipitation. The mixed precipitation is the main type of precipitation in Shiyang River Basin, and then western precipitation.
Keywords:chemical precipitation  ion composition  temporal change  spatial change  Shiyang River Basin
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