基于对应分析法伊犁河谷西部平原区地下水化学特征

Chemical Characteristics of Groundwater in Western Plain of Yili Valley Based on Correspondence Analysis

在收集 2013 年、2014 年、2016 年三年共计 251 组浅层地下水水质资料的基础上,运用对应分析方法分析了伊犁河谷西部平原区伊犁河南北两岸地下水常规水化学特征,同时辅助以传统的 Piper 三线图和数理统计的相关研究方法。结果显示,对于研究区来说对应分析法与传统的 Piper 三线图方法在研究结果上总体保持一致:伊犁河谷西部平原区浅层地下水水质指标中阳离子主要为钙镁离子,阴离子主要为碳酸氢根离子和碳酸根离子;其中水质指标中的 SO4^2-和 Ca^2 +相关性较高,二者同源;其演化规律呈现出 Cl^-、Ca^2 +、Mg^2 +含量缓慢增加,同时 HCO3^-含量逐渐降低的特点。分析结果符合当地实际情况,对应分析法与传统的水化学研究方法相结合在水质分析中具有良好的应用前景。

Based on the data of 251 groups of shallow groundwater quality collected in 2013,2014 and 2016,by using correspondence analysis method,the Yili river valley in western conventional water between Yili river north and south on both sides of the groundwater chemical characteristics were analyzed. At the same time,it was assisted by traditional Piper diagram and related research methods of mathematical statistics. The results show that,for this study area with the traditional three Piper diagram method on the results of the study is consistent with the overall: Yili river valley in the western plains of shallow groundwater quality indexes of cationic mainly calcium and magnesium ion,anion are mainly carbonate ions and bicarbonate ions. Among them,the correlation between SO42- and Ca2+ in water quality indexes is relatively high. Its evolution presents the Cl-、Ca2+ and Mg2+ content increasing slowly. At the same time,characteristics of the HCO3- content gradually reduce. It is concluded that the above analysis results conform to the local actual situation. The combination of correspondence analysis method and traditional hydrochemistry research method has a good application prospect in water quality analysis.