Analysis of seasonal spatio-temporal variations in the quality of river waters and its influencing factors in the Periyar River Basin, southern Western Ghats, India

IF 2.7 4区环境科学与生态学 Q2 WATER RESOURCES

Journal of Water and Climate Change Pub Date : 2024-07-19 DOI:10.2166/wcc.2024.136

Sanal Kumar Aditya, A. Krishnakumar, K. AnoopKrishnan

{"title":"Analysis of seasonal spatio-temporal variations in the quality of river waters and its influencing factors in the Periyar River Basin, southern Western Ghats, India","authors":"Sanal Kumar Aditya, A. Krishnakumar, K. AnoopKrishnan","doi":"10.2166/wcc.2024.136","DOIUrl":null,"url":null,"abstract":"\n \n In this study, an extensive and methodical investigation was carried out to comprehend the different geochemical processes, factors governing the hydrochemical composition and water suitability for drinking, irrigation and industrial usage in the Periyar River Basin (PRB). A total of 300 samples were collected from the mainstream, tributaries and dams of the river during PREM (Pre-Monsoon), POM (Post Monsoon), NEM (North-East Monsoon) and SWM (South-West Monsoon). The results suggested that the cationic composition is chiefly characterized by the predominant presence of Ca2+ and Mg2+ while Cl− dominates the anionic composition followed by HCO3-. The results identified transitional waters. Gibb's diagram revealed that the ionic composition dominance in the study area is influenced by the chemistry of the host rock rather than precipitation and evaporation. A comparatively greater pCO2 (>10−3.5 atm) shows an atmospheric disequilibrium in natural waterbodies due to both anthropogenic activities and input of baseflow to stream discharge. The Water Quality Index showed excellent (0–25) to unsuitable (>300) category during NEM, POM and PREM with significant spatial variation along the river. Integrated irrigational suitability indices illustrated the suitability of the samples for agricultural use, except for a few samples in the lowland region.","PeriodicalId":49150,"journal":{"name":"Journal of Water and Climate Change","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Water and Climate Change","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.2166/wcc.2024.136","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"WATER RESOURCES","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, an extensive and methodical investigation was carried out to comprehend the different geochemical processes, factors governing the hydrochemical composition and water suitability for drinking, irrigation and industrial usage in the Periyar River Basin (PRB). A total of 300 samples were collected from the mainstream, tributaries and dams of the river during PREM (Pre-Monsoon), POM (Post Monsoon), NEM (North-East Monsoon) and SWM (South-West Monsoon). The results suggested that the cationic composition is chiefly characterized by the predominant presence of Ca2+ and Mg2+ while Cl− dominates the anionic composition followed by HCO3-. The results identified transitional waters. Gibb's diagram revealed that the ionic composition dominance in the study area is influenced by the chemistry of the host rock rather than precipitation and evaporation. A comparatively greater pCO2 (>10−3.5 atm) shows an atmospheric disequilibrium in natural waterbodies due to both anthropogenic activities and input of baseflow to stream discharge. The Water Quality Index showed excellent (0–25) to unsuitable (>300) category during NEM, POM and PREM with significant spatial variation along the river. Integrated irrigational suitability indices illustrated the suitability of the samples for agricultural use, except for a few samples in the lowland region.

查看原文本刊更多论文

印度西高止山脉南部佩里亚尔河流域河水水质的季节性时空变化及其影响因素分析

在这项研究中，对佩里亚尔河流域（Periyar River Basin，PRB）的不同地球化学过程、水化学组成因素以及饮用水、灌溉水和工业用水的适宜性进行了广泛而有条理的调查。在 PREM（季风前）、POM（季风后）、NEM（东北季风）和 SWM（西南季风）期间，从河流的主流、支流和水坝共采集了 300 份样本。结果表明，阳离子成分的主要特点是主要存在 Ca2+ 和 Mg2+，而阴离子成分主要是 Cl-，其次是 HCO3-。结果确定了过渡水体。吉布斯图显示，研究区域的离子成分主要受主岩化学而非降水和蒸发的影响。相对较高的 pCO2（>10-3.5 atm）表明，由于人类活动和溪流排放的基流输入，自然水体中的大气不平衡。在 NEM、POM 和 PREM 期间，水质指数显示为优良（0-25）至不适宜（>300），沿河空间变化显著。综合灌溉适宜性指数表明，除低洼地区的几个样本外，其他样本均适合农业使用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Water and Climate Change WATER RESOURCES-

CiteScore

4.80

自引率

10.70%

发文量

168

审稿时长

>12 weeks

期刊介绍： Journal of Water and Climate Change publishes refereed research and practitioner papers on all aspects of water science, technology, management and innovation in response to climate change, with emphasis on reduction of energy usage.