Groundwater system and climate change: Present status and future considerations

Journal of Hydrology, Journal Year: 2020, Volume and Issue: 589, P. 125163 - 125163

Published: June 12, 2020

Language: Английский

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The geothermal potential of cities

Renewable and Sustainable Energy Reviews, Journal Year: 2019, Volume and Issue: 106, P. 17 - 30

Published: Feb. 27, 2019

Language: Английский

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Dam builders and their works: Beaver influences on the structure and function of river corridor hydrology, geomorphology, biogeochemistry and ecosystems

Earth-Science Reviews, Journal Year: 2021, Volume and Issue: 218, P. 103623 - 103623

Published: May 5, 2021

Beavers (Castor fiber, Castor canadensis) are one of the most influential mammalian ecosystem engineers, heavily modifying river corridor hydrology, geomorphology, nutrient cycling, and ecosystems. As an agent disturbance, they achieve this first foremost through dam construction, which impounds flow increases extent open water, from all other landscape impacts follow. After a long period local regional eradication, beaver populations have been recovering expanding throughout Europe North America, as well introduced species in South prompting need to comprehensively review current state knowledge on how beavers influence structure function corridors. Here, we synthesize overall biogeochemistry, aquatic terrestrial Our key findings that complex dams can increase surface subsurface water storage, modify reach scale partitioning budgets, allow site specific flood attenuation, alter low evaporation, residence times, geomorphic heterogeneity, delay sediment transport, carbon, expand anaerobic conditions interfaces, downstream export dissolved organic carbon ammonium, decrease nitrate, lotic lentic habitat transitions primary production, induce 'reverse' succession riparian vegetation assemblages, complexity biodiversity scales. We then examine feedbacks overlaps between these changes caused by beavers, where longitudinal hydrologic connectivity create ponds wetlands, ecosystems, vertical hydraulic exchange gradients, biogeochemical cycling per unit stream length, while increased lateral will determine area wetland littoral zone habitats, assemblages. However, depends firstly hydro-geomorphic context, determines floodplain inundation, driver subsequent hydrologic, geomorphic, biogeochemical, dynamics. Secondly, it length time sustain disturbance at given site, is constrained top down (e.g. predation) bottom up competition) feedbacks, ultimately pathways following abandonment. This outsized processes also fundamentally distinct what occurs their absence. Current management restoration practices therefore re-examination order account for both positive negative, such potentially accommodate enhance engineering services provide. It hoped our synthesis holistic framework evaluating be used endeavor scientists managers into future continue numbers range.

Language: Английский

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The impacts of climate change on coastal groundwater

Nature Reviews Earth & Environment, Journal Year: 2024, Volume and Issue: 5(2), P. 100 - 119

Published: Jan. 11, 2024

Language: Английский

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Global groundwater warming due to climate change

Nature Geoscience, Journal Year: 2024, Volume and Issue: 17(6), P. 545 - 551

Published: June 1, 2024

Abstract Aquifers contain the largest store of unfrozen freshwater, making groundwater critical for life on Earth. Surprisingly little is known about how responds to surface warming across spatial and temporal scales. Focusing diffusive heat transport, we simulate current projected temperatures at global scale. We show that depth water table (excluding permafrost regions) conservatively warm average by 2.1 °C between 2000 2100 under a medium emissions pathway. However, regional shallow patterns vary substantially due variability in climate change depth. The lowest rates are mountain regions such as Andes or Rocky Mountains. illustrate increasing influences stream thermal regimes, groundwater-dependent ecosystems, aquatic biogeochemical processes, quality geothermal potential. Results indicate following pathway, 77 million 188 people live areas where exceeds highest threshold drinking set any country.

Language: Английский

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Temperature-associated changes in groundwater quality

Journal of Hydrology, Journal Year: 2019, Volume and Issue: 572, P. 206 - 212

Published: March 2, 2019

Language: Английский

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Spatio‐temporal heterogeneity in soil water stable isotopic composition and its ecohydrologic implications in semiarid ecosystems

Hydrological Processes, Journal Year: 2019, Volume and Issue: 33(12), P. 1724 - 1738

Published: March 12, 2019

Abstract Spatio‐temporal heterogeneity in soil water content is recognized as a common phenomenon, but the hydrogen and oxygen isotope composition of water, which can reveal processes cycling within soils, has not been well studied. New advances are being driven by measurement approaches allowing sampling with high density both space time. Using situ vapour probe techniques, combined conventional plant vacuum distillation extraction, we monitored stable isotopic waters at paired sites dominated grasses Gambel's oak ( Quercus gambelii ) semiarid montane ecosystem over course growing season. We found that spaced only 20 m apart had profoundly different volumetric conditions. document patterns depth‐ time‐explicit variation conditions these consider mechanisms for observed heterogeneity. variability were damped under Q. , perhaps due part to hydraulic redistribution deep or groundwater soils relative grass‐dominated site. also some support H discrimination effects during uptake . In this ecosystem, was higher than neighbouring Grass site, thus, 25% more available transpiration compared This work highlights role plants governing demonstrates they strongly influence ratios water. The resulting fine‐scale implications use tracers study hydrology evaporation fluxes improve understanding through soil–plant–atmosphere continuum.

Language: Английский

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Large-scale thermal unrest of volcanoes for years prior to eruption

Nature Geoscience, Journal Year: 2021, Volume and Issue: 14(4), P. 238 - 241

Published: March 11, 2021

Language: Английский

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Groundwater fauna downtown – Drivers, impacts and implications for subsurface ecosystems in urban areas

Journal of Contaminant Hydrology, Journal Year: 2022, Volume and Issue: 248, P. 104021 - 104021

Published: May 11, 2022

Groundwater fauna (stygofauna) comprises organisms that have adapted to the dark subterranean environment over a course of thousands and millions years, typically having slow metabolisms long life cycles. They are crucial players in groundwater oxygenic aquifers, contribute various ecosystem services. Today's knowledge their sensitivity anthropogenic impacts is incomplete critical analysis general relevance local findings lacking. In this review, we focus on those areas with highest interference between humans stygofauna: cities. Here where pollution by contaminants heat strongly stresses unique ecosystems. It demonstrated it difficult discern influence individual factors from reported field studies, extrapolate laboratory results conditions. The effects temperature increase chemical vary tested species test general, previous indicate heating, especially long-term, will mortality, less at risk vanishing habitats. same may be true for salinity caused road de-icing cold urban areas. Furthermore, high sensitivities were shown ammonium, which probably even more pronounced rising temperatures resulting altered biodiversity patterns. Toxicity heavy metals, variety invertebrates, increases time chronic exposure. Our current reveals diverse potential pollution, but our insights gained so far can only validated standardized long-term concepts.

Language: Английский

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Physiological tolerance and ecotoxicological constraints of groundwater fauna

Elsevier eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 457 - 479

Published: Jan. 1, 2023

Language: Английский

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