Geospatial Assessment of Groundwater Quality for Irrigational Suitability and Uses for the Region of Manipur Valley, India

IF 0.5 4区 化学 Q4 CHEMISTRY, ANALYTICAL
Yumnam Gyanendra,  Wazir Alam
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引用次数: 0

Abstract

A comprehensive spatiotemporal qualitative investigation and assessment of groundwater resources of Manipur Valley were carried out to evaluate their suitability for irrigational uses and geospatially identify the vulnerable groundwater zones. In this regard, 140 grided representative samples during pre-monsoon and post-monsoon were collected from the region along with their in-situ parameters. The groundwater suitability for irrigational uses was evaluated based on significant water quality parameters and indices. The study highlights that except for a few parameters and indices for selected parts of the region, most of the samples were found under suitable categories. Few samples with elevated electrical conductivity values and higher sodium concentrations signify the possibility of alkalinity and salinity hazards for prolonged uses of groundwater for irrigation. The study witnessed the presence of saline aquifer in the region where samples exhibit higher salinity (>1000 ppm) and can potentially cause salinity hazards for prolonged uses of groundwater for irrigation. The hydrogeochemical classification reveals the dominance of the \({\text{HCO}}_{3}^{ - }\)-Ca2+ type of water followed by mixed-type water due to rock weathering dominance during both seasons. Thus, the study highlights the comprehensive spatiotemporal scenario of groundwater quality for irrigational uses in the region through spatial mapping to identify the vulnerable groundwater zones for sustainable agricultural soil management.

印度曼尼普尔河谷地区地下水灌溉适宜性和利用的地理空间评价
对曼尼普尔河谷地下水资源进行了全面的时空定性调查和评价,以评价其灌溉利用的适宜性,并在地理空间上识别地下水脆弱带。为此,在该地区收集了季风前和季风后具有代表性的140个格网样及其原位参数。根据重要水质参数和指标对地下水进行了适宜性评价。该研究强调,除了部分地区的少数参数和指标外,大多数样本都属于合适的类别。电导率值升高和钠浓度升高的样品很少,这表明长期使用地下水灌溉可能存在碱度和盐度危害。该研究表明,在该地区存在含盐含水层,样品显示出较高的盐度(&gt; 1000ppm),并且可能对长期使用地下水进行灌溉造成含盐量危害。水文地球化学分类显示,两季均以\({\text{HCO}}_{3}^{ - }\) -Ca2+型水为主,其次为岩石风化作用的混合型水。因此,本研究通过空间制图,突出了该地区用于灌溉的地下水质量的综合时空情景,以确定地下水脆弱区,以进行可持续农业土壤管理。
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来源期刊
Journal of Water Chemistry and Technology
Journal of Water Chemistry and Technology CHEMISTRY, APPLIED-CHEMISTRY, ANALYTICAL
自引率
0.00%
发文量
51
审稿时长
>12 weeks
期刊介绍: Journal of Water Chemistry and Technology focuses on water and wastewater treatment, water pollution monitoring, water purification, and similar topics. The journal publishes original scientific theoretical and experimental articles in the following sections: new developments in the science of water; theoretical principles of water treatment and technology; physical chemistry of water treatment processes; analytical water chemistry; analysis of natural and waste waters; water treatment technology and demineralization of water; biological methods of water treatment; and also solicited critical reviews summarizing the latest findings. The journal welcomes manuscripts from all countries in the English or Ukrainian language. All manuscripts are peer-reviewed.
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