Recent Research Results on Groundwater Resources and Saltwater Intrusion in a Changing Environment

Polemio, M.; Walraevens, Kristine

doi:10.3390/w11061118

Cited by 14 publications

(6 citation statements)

References 14 publications

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“…Most volcanic islands, to a large extent, depend on coastal aquifers for their water supply because surface water is rarely available due to the high permeability of basalts. However, in coastal areas, the seawater intrusion phenomenon is becoming more serious due to the disruption of natural hydrological conditions by climate change, rising sea level, and intensive groundwater extraction [1]. Therefore, establishing appropriate strategies for groundwater utilization and sustainability has become a major concern on volcanic islands.…”

Section: Introductionmentioning

confidence: 99%

A Borehole-Based Approach for Seawater Intrusion in Heterogeneous Coastal Aquifers, Eastern Part of Jeju Island, Korea

Shin

Hwang

2020

Water

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Understanding the basaltic aquifer system and seawater intrusion on the volcanic island of Jeju, Korea, has received significant attention over the years, and various methodologies have been suggested in the contributions. Nevertheless, it is still difficult to effectively characterize groundwater systems due to the long period of volcanic activity and the lithological variability of basalt. In this study, geophysical well logging in seawater intrusion monitoring boreholes detected a sudden decrease of electrical conductivity within the saltwater zone in the eastern part of Jeju Island. This anomalous condition cannot be explained by the Ghyben-Herzberg model, which has historically been considered as the basic groundwater model of Jeju Island. This paper focuses on fine-scale temporal and spatial variability of groundwater flow using electrical conductivity and temperature logs and borehole temperature monitoring by a thermal line sensor. On the basis of the results, we evaluate an alternative model to replace the traditional conceptual model in the eastern part of Jeju Island. It is revealed that the area consists of heterogeneous aquifer systems, and the behavior of freshwater and saltwater is understood by temperature monitoring over the entire depth of boreholes. Coastal aquifers flow through two or more independent channels with weak vertical connections. In addition, seawater intrusion does not occur continuously in the vertical direction from the bottom depth, but instead occurs through these multilayered aquifers. In particular, the multilayered aquifers that are responsible for flow pathway, as well as the freshwater–saltwater interface form mainly at lithological boundaries. Our preliminary conceptual model is expected to be improved and revised by various measurements of hydrodynamic parameters such as flowmeter or packer test.

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Section: Introductionmentioning

confidence: 99%

A Borehole-Based Approach for Seawater Intrusion in Heterogeneous Coastal Aquifers, Eastern Part of Jeju Island, Korea

Shin

Hwang

2020

Water

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“…In terms of water pollution, there are about 400,000 chemical enterprises along the Yangtze River Economic Belt, and nearly one-third of the heavily polluted enterprises are distributed within 5 kilometers of the water source, which has seriously destroyed the water environment in the Yangtze River region. Water pollution has also caused serious ecological problems in the Yangtze River, such as the disappearance of the original biological population, a sharp decline in the number of wild animals and plants, and the destruction of biodiversity [10].…”

Section: E Current Situation Of Biodiversity In the Yangtzementioning

confidence: 99%

Exploration of Environmental Protection-Oriented Ecoenvironmental Performance Audit System

Wang

2022

Security and Communication Networks

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In the era of the COVID-19 (SARS-CoV-2) virus, it has become imperative to audit the environment surrounding us to prioritize public health and the healthcare system. This study aims to accelerate the reform of the economic development modes and the construction of a resource-friendly society. The environmental protection-oriented ecoenvironmental performance audit system is studied here. Based on the current situation of regional ecological pollution in the Yangtze River Economic Belt, the situation and existing problems are analyzed for the ecoenvironment in the Yangtze River Economic Belt from the perspectives of biodiversity, water ecoenvironment, wetland ecoenvironment, and forest ecoenvironment. Then, the situation is deeply analyzed for the ecoenvironmental performance audit project in the Yangtze River Economic Belt. Afterward, we explore the basic characteristics of the environmental audit and summarize the implementation path of resource and environmental audit. The results show that there are some problems in the control and utilization of funds for environmental protection and the development and protection of resources in the cities along the Yangtze River Economic Belt. Then we analyze the problems in the ecoenvironmental performance audit of the Yangtze River Economic Belt and give some suggestions for improving the ecoenvironmental performance audit work. The objective of this paper is to improve the application effect of ecoenvironmental performance audit and provide references for future environmental protection work which will have great impacts on public health and the development of healthcare services.

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“…Climate change projections for countries in the Blue Pacific indicate uncertainty and variability, with the IPCC Sixth Assessment concluding with high confidence that small island states are "increasingly affected by increases in temperature, the growing impacts of tropical cyclones (TCs), storm surges, droughts, changing precipitation patterns, sea level rise (SLR), coral bleaching and invasive species, all of which are already detectable across both natural and human systems (very high confidence)" [15] (p. 2034). In the Blue Pacific, climate change is having severe impacts on WASH, including saltwater intrusion into groundwater as a result of climate change-induced weather events, such as tropical cyclones and droughts [16,17]. Sources of potable water such as rainwater tanks and streams are polluted or destroyed during droughts and tropical cyclones, as are sanitation infrastructure, leading to disease outbreaks and increased costs for people to find alternative water sources [16].…”

Section: Introductionmentioning

confidence: 99%

Locally Led Opportunities for Water, Sanitation and Hygiene, Climate Change and Gender Equality Partnerships in the Blue Pacific

Grant,

Willetts

2024

Water

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Partnerships between water, sanitation and hygiene (WASH) and rights-holder organisations (RHOs) have become more common, important and impactful in the international development sector, and they have been driven by aligned agendas, mutual benefits and the pursuit of locally owned and inclusive development agendas. There are opportunities to broaden partnerships and coalitions to include climate change advocacy, adaptation and mitigation organisations given the increased focus on the links between WASH, resilience and climate change action. This article takes a first step in addressing the question: How can the experience of WASH, gender equality and climate organisation partnerships and coalitions in the Blue Pacific inform the WASH sector in its growing support of and investment in diverse partnerships in support of localism? We conducted a systematic scoping review to identify the literature on gender equality, WASH and climate change-related partnerships and coalitions in the Blue Pacific. Three key themes emerged from the systematic scoping review based on 23 studies published from 1996 to 2024. Firstly, partnerships and coalitions are part of a critical localism agenda, though care needs to be taken by potential partners and donors to understand and manage power dynamics between actors and organisations working within and across sectors. Secondly, a range of benefits and success factors have been documented on partnerships and coalitions in the Blue Pacific, including support for emerging leadership, leveraging policy outcomes, facilitating learning and the sharing of frameworks and tools between partners. Thirdly, like all parts of the community and governance ecosystem, gender dynamics and social norms inform and influence partnerships and coalitions. At the same time, partnerships are important for informing and driving gender equality and inclusion at the local and regional levels including within the WASH sector. This article is useful for local actors, donors and civil society organisations wishing to pursue the mutually beneficial goals of WASH, gender equality, climate change action and localisation in the Blue Pacific.

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Recent Research Results on Groundwater Resources and Saltwater Intrusion in a Changing Environment

Cited by 14 publications

References 14 publications

A Borehole-Based Approach for Seawater Intrusion in Heterogeneous Coastal Aquifers, Eastern Part of Jeju Island, Korea

A Borehole-Based Approach for Seawater Intrusion in Heterogeneous Coastal Aquifers, Eastern Part of Jeju Island, Korea

Exploration of Environmental Protection-Oriented Ecoenvironmental Performance Audit System

Locally Led Opportunities for Water, Sanitation and Hygiene, Climate Change and Gender Equality Partnerships in the Blue Pacific

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