Groundwater recharge estimation using chloride mass balance method on the southern slope of Merapi Volcano, Indonesia

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-09-01 DOI:10.11591/ijaas.v12.i3.pp265-273

Restu Dwi Cahyo Adi, Wahyu Wilopo, Hendy Setiawan

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引用次数: 0

Abstract

Groundwater is a main resource for the majority of Indonesian people as a source of clean water to meet their daily needs. The increase in groundwater use is unavoidable due to increasing development in Indonesia, especially in Yogyakarta. Groundwater recharge is important in the hydrological cycle to meet groundwater needs. Therefore, this study aims to estimate groundwater recharge by the chloride mass balance (CMB) method on the southern slope of Merapi Volcano in Yogyakarta, Indonesia. This research was conducted in the rainy and dry seasons from August 2022 until January 2023. This research collects annual rainfall near the study area from the Meteorology, Climatology, and Geophysics Agency (BMKG) Yogyakarta station, monthly data collected from eighteen samples of groundwater station, and monthly data collected from fifteen samples of rainwater in the study area. The chemical content of groundwater and rainwater samples is analyzed using argentometry to obtain chloride concentration. The result of annual rainfall in the study area is 3,603.878 mm/year. The average chloride concentration in rainwater is 1.1 mg/L, while the average chloride concentration in groundwater is 8.015 mg/L. The CMB method calculation showed that the recharge in the study area ranges from 171.65 to 1,711.29 mm/year. The groundwater recharge has a positive correlation with elevation and rainfall. High groundwater recharge is also found in the northern area due to fractured lava aquifer.

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用氯化物质量平衡法估算印尼默拉皮火山南坡地下水补给

地下水是大多数印度尼西亚人的主要资源，是满足其日常需要的清洁水源。由于印度尼西亚，特别是日惹的不断发展，地下水使用量的增加是不可避免的。地下水补给是水文循环中满足地下水需求的重要环节。因此，本研究旨在利用氯化物质量平衡(CMB)方法估算印尼日惹默拉皮火山南坡地下水补给量。这项研究是在2022年8月至2023年1月的雨季和旱季进行的。本研究收集了研究区附近日惹气象站的年降雨量，18个地下水站的月数据，以及研究区15个雨水样本的月数据。对地下水和雨水样品的化学成分进行了测定，得到氯离子浓度。研究区年降雨量为3603.878 mm/年。雨水氯离子平均浓度为1.1 mg/L，地下水氯离子平均浓度为8.015 mg/L。CMB方法计算表明，研究区补给量在171.65 ~ 1711.29 mm/年之间。地下水补给量与海拔高度和降雨量呈正相关。由于熔岩含水层破裂，北部地区也发现了高地下水补给。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.