Impact of citrus agriculture on the quality of water resource in a small Steep Island, Seto Inland Sea, Japan

Sharon Bih Kimbi; Shin Ichi Onodera; Shingo Nozaki; Yusuke Tomozawa; Kunyang Wang; Anna Fadliah Rusydi; Mitsuyo Saito

doi:10.21660/2021.82.6166

Impact of citrus agriculture on the quality of water resource in a small Steep Island, Seto Inland Sea, Japan

Sharon Bih Kimbi, Shin Ichi Onodera, Shingo Nozaki, Yusuke Tomozawa, Kunyang Wang, Anna Fadliah Rusydi, Mitsuyo Saito

School of Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Groundwater is an extremely valuable resource thus its pollution a call for concern. Amongst the major threats, agricultural leachates often contribute significantly to groundwater pollution. This paper reports an investigation on the effects of citrus agriculture on the groundwater quality aspects of Osakishimojima island. Fifty-one groundwater samples were collected and analyzed for major ions and nutrients. The Gibbs diagram revealed that the overall hydrogeochemical environment of the study area is controlled by rock-water interaction. Two main hydrochemical facies (CaMg-HCO3 and CaMg-SO4) were identified. 48 groundwater samples showed PO₄³-P content (0.06 - 3.2 mg/L), which exceeds WHO’s recommended maximum permissible limit. High contamination of PO₄³-P was noticed at depth zones between 3 to 6 m while the highest concentrations were found at depths of 5 m. NO₃⁻-N contamination of groundwater was also observed to decrease with depth. High levels of PO43-P in groundwater may be as a result of heavy fertilizer application by farmers.

Original language	English
Pages (from-to)	109-114
Number of pages	6
Journal	International Journal of GEOMATE
Volume	20
Issue number	82
DOIs	https://doi.org/10.21660/2021.82.6166
Publication status	Published - Jun 2021

Keywords

Citrus agriculture
Contamination
Groundwater quality
Osakishimojima
Seto Inland Sea

ASJC Scopus subject areas

Environmental Engineering
Building and Construction
Geotechnical Engineering and Engineering Geology
Soil Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.21660/2021.82.6166

Cite this

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title = "Impact of citrus agriculture on the quality of water resource in a small Steep Island, Seto Inland Sea, Japan",

abstract = "Groundwater is an extremely valuable resource thus its pollution a call for concern. Amongst the major threats, agricultural leachates often contribute significantly to groundwater pollution. This paper reports an investigation on the effects of citrus agriculture on the groundwater quality aspects of Osakishimojima island. Fifty-one groundwater samples were collected and analyzed for major ions and nutrients. The Gibbs diagram revealed that the overall hydrogeochemical environment of the study area is controlled by rock-water interaction. Two main hydrochemical facies (CaMg-HCO3 and CaMg-SO4) were identified. 48 groundwater samples showed PO43-P content (0.06 - 3.2 mg/L), which exceeds WHO{\textquoteright}s recommended maximum permissible limit. High contamination of PO43-P was noticed at depth zones between 3 to 6 m while the highest concentrations were found at depths of 5 m. NO3−-N contamination of groundwater was also observed to decrease with depth. High levels of PO43-P in groundwater may be as a result of heavy fertilizer application by farmers.",

keywords = "Citrus agriculture, Contamination, Groundwater quality, Osakishimojima, Seto Inland Sea",

author = "Kimbi, {Sharon Bih} and Onodera, {Shin Ichi} and Shingo Nozaki and Yusuke Tomozawa and Kunyang Wang and Rusydi, {Anna Fadliah} and Mitsuyo Saito",

note = "Funding Information: This research was funded by Hiroshima University. We express our gratitude to the Mamena Funding Information: This research was funded by Hiroshima University. We express our gratitude to the Mamena Association, Osakishimojima for their continued support and assistance throughout this research. Publisher Copyright: Copyright {\textcopyright} Int. J. of GEOMATE. All rights reserved, including the making of copies unless permission is obtained from the copyright proprietors.",

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doi = "10.21660/2021.82.6166",

language = "English",

volume = "20",

pages = "109--114",

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AU - Kimbi, Sharon Bih

AU - Onodera, Shin Ichi

AU - Nozaki, Shingo

AU - Tomozawa, Yusuke

AU - Wang, Kunyang

AU - Rusydi, Anna Fadliah

AU - Saito, Mitsuyo

N1 - Funding Information: This research was funded by Hiroshima University. We express our gratitude to the Mamena Funding Information: This research was funded by Hiroshima University. We express our gratitude to the Mamena Association, Osakishimojima for their continued support and assistance throughout this research. Publisher Copyright: Copyright © Int. J. of GEOMATE. All rights reserved, including the making of copies unless permission is obtained from the copyright proprietors.

PY - 2021/6

Y1 - 2021/6

N2 - Groundwater is an extremely valuable resource thus its pollution a call for concern. Amongst the major threats, agricultural leachates often contribute significantly to groundwater pollution. This paper reports an investigation on the effects of citrus agriculture on the groundwater quality aspects of Osakishimojima island. Fifty-one groundwater samples were collected and analyzed for major ions and nutrients. The Gibbs diagram revealed that the overall hydrogeochemical environment of the study area is controlled by rock-water interaction. Two main hydrochemical facies (CaMg-HCO3 and CaMg-SO4) were identified. 48 groundwater samples showed PO43-P content (0.06 - 3.2 mg/L), which exceeds WHO’s recommended maximum permissible limit. High contamination of PO43-P was noticed at depth zones between 3 to 6 m while the highest concentrations were found at depths of 5 m. NO3−-N contamination of groundwater was also observed to decrease with depth. High levels of PO43-P in groundwater may be as a result of heavy fertilizer application by farmers.

AB - Groundwater is an extremely valuable resource thus its pollution a call for concern. Amongst the major threats, agricultural leachates often contribute significantly to groundwater pollution. This paper reports an investigation on the effects of citrus agriculture on the groundwater quality aspects of Osakishimojima island. Fifty-one groundwater samples were collected and analyzed for major ions and nutrients. The Gibbs diagram revealed that the overall hydrogeochemical environment of the study area is controlled by rock-water interaction. Two main hydrochemical facies (CaMg-HCO3 and CaMg-SO4) were identified. 48 groundwater samples showed PO43-P content (0.06 - 3.2 mg/L), which exceeds WHO’s recommended maximum permissible limit. High contamination of PO43-P was noticed at depth zones between 3 to 6 m while the highest concentrations were found at depths of 5 m. NO3−-N contamination of groundwater was also observed to decrease with depth. High levels of PO43-P in groundwater may be as a result of heavy fertilizer application by farmers.

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KW - Contamination

KW - Groundwater quality

KW - Osakishimojima

KW - Seto Inland Sea

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Impact of citrus agriculture on the quality of water resource in a small Steep Island, Seto Inland Sea, Japan

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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