摘要
为探究成都市水源地周边土壤质量状况,保护水源地环境,以徐堰河、柏条河饮用水水源地周边土壤为研究对象,对所采集土壤样品进行物理及化学性质如土壤pH值、阳离子交换量、有机质含量及重金属Cd、Zn、Cu、Cr、Cu、Ni进行测定与分析。结果显示:成都市饮用水水源地土壤pH值变化范围较大,土壤离子交换量和有机质具有一定的空间异质性;应用单因素污染指数分析,水源地土壤Hg含量可能具有较大的污染潜力。Spearman相关性分析表明,Cd与Zn,Cu与Cr,Cu和Ni呈显著正相关关系;应用主成分分析水源地典型土壤重金属,三个主成分累积贡献率达到90.828%,第一主成分、第二主成分、第三主成分贡献率分别为44.082%、36.800%、9.946%。研究结果为保护成都市饮用水水源地环境健康和安全提供理论支持和合理建议。
To investigate the soil quality and protect the environment of the water source area of Xuyan River and Baitiao River in Chengdu,this paper studies the pH value,cation exchange capacity,organic matter content and typical heavy metals Cd、Zn、Cu、Cr、Cu and Ni in the samples around water source area.The result clearly shows that the pH value widely varied,and the contents of ion exchange capacity and organic matter have some spatial heterogeneity.Spearman correlation analysis showed that there are significant positive correlations between Cd and Zn,Cu and Cr,and Cu and Ni.The analysis of single factor pollution index shows that the Hg content as great pollution potential.The principal component analysis and cluster analysis show that heavy pollutants are mainly 3 principal components and the cumulative contribution rate is 90.828%,among which the first,second,third principal component contribution rates are 44.082%,36.800% and 9.946%,respectively.This paper hopes to provide a reasonable suggestion for the protection of major water source in Chengdu Reservoir.
作者
高进长
李强林
邱诚
肖秀婵
GAO Jinzhang;LI Qianglin;QIU Cheng;XIAO Xiuchan(School of Materials and Environmental Engineering,Chengdu Technological University,Chengdu 611730,China)
出处
《环境影响评价》
2023年第1期117-124,共8页
Environmental Impact Assessment
基金
国家自然科学基金青年基金资助项目(21705011)。
