The Significance of Groundwater Table Inclination for Nature-Based Replenishment of Groundwater-Dependent Ecosystems by Managed Aquifer Recharge

Water, Год журнала: 2023, Номер 15(6), С. 1077 - 1077

Опубликована: Март 11, 2023

Managed aquifer recharge (MAR) is an increasingly popular technique; however, the significance of groundwater flow dynamics rarely examined in detail regarding MAR systems. In general, a high hydraulic gradient not favoured for implementation, as it causes higher water loss and mixing with native groundwater. However, during groundwater-dependent ecosystem (GDE) rehabilitation, these gradient-driven processes can be taken advantage of. The aim this research to test hypothesis by evaluating effect table inclination, topography, other local characteristics on efficiency from perspective GDE restoration. was discharge area simple half-basin based theoretical simulations, using GeoStudio SEEP/W software. Different scenarios were compared analyse level increase infiltrated volumes assess parameters each scenario. results applied close-to-real situation Lake Kondor, Danube-Tisza Interfluve (Hungary), which dried up past decades due decline area. Based results, initial head difference, model length, conductivity are most critical at amount needed increasing mainly influenced thickness unsaturated zone material properties aquifer. findings help better understand light contribute optimising study suggest that, if area, will also corresponding positively effects connected GDEs. This approach serve nature-based solution (NBS) sustain sensitive ecosystems changing climatic conditions.

Язык: Английский

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Release of soil colloids during flow interruption increases the pore-water PFAS concentration in saturated soil

Environmental Pollution, Год журнала: 2021, Номер 286, С. 117297 - 117297

Опубликована: Май 4, 2021

Язык: Английский

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Pathways and Estimate of Aquifer Recharge in a Flood Basalt Terrain; A Review from the South Fork Palouse River Basin (Columbia River Plateau, USA)

Sustainability, Год журнала: 2022, Номер 14(18), С. 11349 - 11349

Опубликована: Сен. 9, 2022

Aquifer recharge is one of the most important hydrologic parameters for understanding available groundwater volumes and making sustainable use natural water by minimizing mining. In this framework, we reviewed evaluated efficacy multiple methods to determine in a flood basalt terrain that restrictive infiltration percolation. South Fork Columbia River Plateau, recent research involving tracers modeling has revealed snowmelt-dominated system. Here, occurring along intersection mountain-front alluvial systems extensive Miocene layers form fractured interbedded sediment aquifer The flow model basin was based on large physio-chemical dataset acquired laterally vertically distinctive locations refined margin alluvium spatially variable flows filled basin. Modelled effective 25 105 mm/year appears appropriate basin’s plain mountain front, respectively. These values refine previous efforts quantifying Darcy’s law, one-dimensional infiltration, zero-flux plane, chloride, storage, mass-balance methods. Overall, combination isotopic hydrochemical data three dimensions modelling were needed simultaneously dynamics, pathways, parameter primarily terrain. This holistic approach assisted conceptualizing resource managers have struggled understand dynamics withdrawals.

Язык: Английский

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Coupling SWAT and DPSIR models for groundwater management in Mediterranean catchments

Journal of Environmental Management, Год журнала: 2023, Номер 344, С. 118543 - 118543

Опубликована: Июль 4, 2023

Язык: Английский

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Coastal urban reliance on groundwater during drought cycles: Opportunities, threats and state of knowledge

Cambridge Prisms Coastal Futures, Год журнала: 2023, Номер 1

Опубликована: Янв. 1, 2023

Abstract Urbanisation and population growth are concentrated on the coast with approximately 40% of human living within 100 km ocean. The freshwater systems which coastal urban areas rely vulnerable to bidirectional pressures including processes such as sea-level rise erosion coupled land use changes pollution occurring in inland catchment areas. These threats likely be amplified future under climate change conditions more frequent severe drought periods expected jeopardise already constrained water supply systems. Groundwater is used a resource globally especially important conjunctive during due perceived buffer capabilities. However, several impact aquifers over-abstraction, salinisation, subsidence groundwater flooding often these subterranean resources “out sight out mind” when it comes management strategies. Here, we present an assessment current issues options relevant using recent literature. insights provide knowledge global resources, regarding droughts. This exemplified South African case study two metropolitan municipalities that have experienced or experiencing multi-year Both grappled depletion surface constitutes bulk local Consequently, been explored augmentation strategy. Although may useful alleviating effects, crucial understanding developed through baseline hydrological studies long-term monitoring. Furthermore, unregistered needs quantified. Finally, holistic view, communication thereof, required ensure sustainable aquifers.

Язык: Английский

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Urban Wastewater Mining for Circular Resource Recovery: Approaches and Technology Analysis

Water, Год журнала: 2023, Номер 15(22), С. 3967 - 3967

Опубликована: Ноя. 15, 2023

Urban areas comprise less than 1% of the Earth’s land surface, yet they host more half global population and are responsible for majority energy use related CO2 emissions. Urbanization is increasing speed local intensity water cycle exploitation, with a large number cities suffering from shortage problems globally. Wastewater (used water) contains considerable amounts embedded recoverable materials. Studies applications have demonstrated that recovering or re-capturing water, energy, materials wastewater viable endeavor, several notable examples worldwide. Reclaiming all these resources through widespread application effective technological approaches could be feasible potentially profitable, although challenging points view. This paper reviews possibilities technical opportunities applicable to mining within urban discusses emerging technologies issues pertaining resource recovery reuse applications. The present future sustainability also discussed. Since sewage management not “one size fits all”, conditions must carefully considered when designing optimal solutions, which influenced just by technology but multiple economic, geographical, social factors.

Язык: Английский

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Proposal for a managed aquifer recharge feasibility index for southern Portugal using multi-criteria decision analysis

Groundwater for Sustainable Development, Год журнала: 2024, Номер 26, С. 101280 - 101280

Опубликована: Июль 11, 2024

Water scarcity in the Mediterranean region requires adoption of new and optimized water resources management tools that allow a progressive climate change adaptation, being one main drivers for employment alternative storage measures such as Managed Aquifer Recharge (MAR). To promote implementation these measures, this study evaluates application MAR feasibility index mapping to southern Portugal, employing Multi-Criteria Decision Analysis (MCDA). A participatory approach – developed within AGREEMAR project aims characterization intrinsic site suitability, availability demand, where stakeholder inputs are embedded weighting computation process. The results obtained demonstrate prevalent moderate across entire (78% area) with an increased percentage area corresponding high (22%) strongly related highly suitable geological features. comparative analysis Analytical Hierarchical Process (AHP) showed minor areas (7%), class transitions between directly above or below classes. sensitivity analysis, conducted based on one-at-a-time (OAT) variation criteria weights, assessed impact methods changes. For method, changes weight 10 28 considered resulted negligible when compared original map, while AHP 3 out produced remaining important modifications maps, which underlined method weights provided higher stability results. provides information about selection process procedures, allowing replication. dissemination is expected raise awareness among stakeholders support scientifically-based decision-making.

Язык: Английский

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Post‐Drought Groundwater Storage Recovery in California's Central Valley

Water Resources Research, Год журнала: 2021, Номер 57(10)

Опубликована: Окт. 1, 2021

Abstract Groundwater depletion is a major threat to agricultural and municipal water supply in California's Central Valley. Recent droughts during 2007–2009 2012–2016 exacerbated chronic groundwater depletion. However, it unclear how much storage recovered from drought‐related overdrafts post‐drought years, climatic conditions management affected recovery times. We estimated change the Valley for April 2002 through September 2019 using four methods: GRACE satellite data, balance approach, hydrologic simulation model, monitoring wells. also evaluated sensitivity of drought different climate scenarios (recent ± future scenarios: 20 GCMs 2 RCPs) method statistical sampling historical data. Estimated loss two ranged 19 km 3 (2007–2009) 28 (2012–2016) (median methods). Median aquifer was 34% 19% overdraft 2010–2011 2017–2019 respectively. Numerical experiments show that times are sensitive forcing, with longer scenario replicate climatology relative forcing no droughts. Overdraft decrease by ∼2× implementation pumping restrictions (30th 50th percentiles depletion) constrain no‐drought climatology. This study highlights importance considering implications recoveries within context scenarios.

Язык: Английский

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Agent-based modeling to assess decentralized water systems: Micro-trading rainwater for aquifer recharge

Journal of Hydrology, Год журнала: 2023, Номер 618, С. 129151 - 129151

Опубликована: Фев. 1, 2023

Язык: Английский

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Managed aquifer recharge for agriculture in Australia – History, success factors and future implementation

Agricultural Water Management, Год журнала: 2023, Номер 285, С. 108382 - 108382

Опубликована: Май 25, 2023

Managed aquifer recharge (MAR) is the intentional of water to aquifers for subsequent recovery or environmental benefit. MAR can potentially increase security in drought more economically than new dams, augment existing dams with higher efficiency storage (less evaporation), brackish groundwater desalination schemes, and facilitate conjunctive use surface resources. In Australia 2023, there are currently 10 known operational schemes used agricultural activity varying stages development, providing a total capacity ∼ 70 × 106 m3/year. A review these Australian identified several general principles which likely lead successful implementation, including: an ongoing demand high value agriculture; availability recharge; suitable store use; location scheme typically areas low topographic relief; organisational capability, institutional arrangements supportive policies operate sustainably economically. If be developed support Australia, site identification, project design, economic viability, community regulator consultation within investment prospectus will required. Operational demonstration variety settings encourage wider adoption. Supportive policy development required ensure sustainable equitable operation irrigated agriculture resilience.

Язык: Английский

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