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地理科学  2011 

玉龙雪山周边典型河流雨季水化学特征分析

, PP. 734-740

Keywords: 玉龙雪山,河流,水化学特征,来源分析

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Abstract:

2009年5~10月在玉龙雪山周边典型小流域白水河、三束河、哥吉河采集河水样品,水化学分析结果表明,三条河流河水均呈现弱碱性,主要离子组成表现为富集Ca2++Mg2+和HCO3-+SO42-,且以Ca2+和HCO3-为主,各类离子存在显著季节变化。离子来源分析表明,玉龙雪山周边小流域河水雨季主要受降水和岩石风化影响,大气降水对河水主要常规离子Na+、K+、Ca2+、Mg2+、SO42-的贡献率为分别为23.44%,9.66%,3.10%,17.81%,10.48%。研究区碳酸盐岩的风化产物是河水离子组成的主要控制因素。

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