用多元统计方法分析伊朗西南部Karkheh河水体的理化和微生物质量

M. Asefi, R. Zamani-Ahmadmahmoodi
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引用次数: 1

摘要

人口的迅速增长以及农业和工业的发展加剧了伊朗河流的污染。本研究利用主成分分析(PCA)来确定伊朗西南部Karkheh河水资源定性参数的重要程度。聚类分析(CA)方法根据被测水质数据对监测站进行分组。主成分分析得到的前3个分量分别占总方差的39.68%、35.04和17.76%;这三个组成部分解释了数据集方差的92.49%。主成分分析表明,影响水质变化的主要因素有:风化和洪水冲刷、生活污水有机污染、洗沙废弃物和化肥径流。此外,主成分分析结果表明,由于监测站附近的污染源更集中,下游地区的河水相对水质较上游地区差。鉴于伊朗的水危机,这一宝贵资源的保护和回收需要有关当局给予更多的关注
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of physiochemical and microbial quality of waters of the Karkheh River in southwestern Iran using multivariate statistical methods
Rapid population growth as well as agricultural and industrial development have increased the contamination of Iranian rivers. This study utilized principal components analysis (PCA) to determine the degree of significance of qualitative parameters of water resources in the Karkheh River in southwestern Iran. Cluster analysis (CA) grouped the monitoring stations based on the water quality data under measurement. The first three components obtained from the PCA accounted for 39.68, 35.04, and 17.76% of the total variance, respectively; these three components explained a total of 92.49% of the variance of the data sets. The PCA factors indicated that the parameters influencing changes in water quality were generally related to weathering and land washing in response to floods, organic contamination from household wastewater, waste from sand washing, and runoff from chemical fertilizers. Moreover, the PCA results indicated that the relative quality of the river water in the downstream areas, when compared with upstream areas, was worse due to the greater concentration of contamination sources in the vicinity of the monitoring stations. Given Iran’s water crisis, the preservation and reclamation of this valuable resource require greater attention from the relevant authorities
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