Understanding global groundwater-climate interactions DOI Creative Commons
Christopher E. Ndehedehe, Oluwafemi E. Adeyeri, Alex O. Onojeghuo

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 904, С. 166571 - 166571

Опубликована: Авг. 28, 2023

Global warming is emerging as an important predictor of water availability and future supplies across the world through inducing frequency severity in hydrological extremes. These extremes (e.g., drought) have potential impacts on groundwater, environmental flows, well increase social inequalities (limited access to by poor), among a range other issues. Understanding influence global climate groundwater systems thus critical help reshape markets policies underpinned knowledge climatic processes driving cycle freshwater supply. The main aim this study improve understanding variability using statistical methods multi-linear regression wavelet analyses). response are assessed feasibility identifying hotspots groundwater-climate interactions explored (2003-2017). Generally, plays major role distribution recharge, evidenced groundwater-rainfall relationship (r ranging from 0.6 0.8 with lags 1-5 months) several regions (Amazon Congo basins, West Africa, south Asia). Some areas where no exists coincide regional aquifer Nubian sand stone north Africa) arid domains fossil groundwater. Our results also show that fluxes driven teleconnections. Notable these teleconnections PDO, ENSO, CAR, Nino 4 PDO showing strongest (r= 0.80) some (e.g. South America). explicit Pacific ocean regulating provides opportunity prediction change impact systems. As opposed remarkably large productive basins), typically domains, could be restricted during prolonged drought, constraining persistence surface maintenance healthy surface-groundwater interactions.

Язык: Английский

Rapid groundwater decline and some cases of recovery in aquifers globally DOI Creative Commons
Scott Jasechko, Hansjörg Seybold, Debra Perrone

и другие.

Nature, Год журнала: 2024, Номер 625(7996), С. 715 - 721

Опубликована: Янв. 24, 2024

Abstract Groundwater resources are vital to ecosystems and livelihoods. Excessive groundwater withdrawals can cause levels decline 1–10 , resulting in seawater intrusion 11 land subsidence 12,13 streamflow depletion 14–16 wells running dry 17 . However, the global pace prevalence of local declines poorly constrained, because situ have not been synthesized at scale. Here we analyse groundwater-level trends for 170,000 monitoring 1,693 aquifer systems countries that encompass approximately 75% 18 We show rapid (>0.5 m year −1 ) widespread twenty-first century, especially regions with extensive croplands. Critically, also accelerated over past four decades 30% world’s regional aquifers. This acceleration deepening highlights an urgent need more effective measures address depletion. Our analysis reveals specific cases which reversed following policy changes, managed recharge surface-water diversions, demonstrating potential depleted recover.

Язык: Английский

Процитировано

169
Managing Land Carrying Capacity: Key to Achieving Sustainable Production Systems for Food Security DOI Creative Commons
Xiukang Wang

Land, Год журнала: 2022, Номер 11(4), С. 484 - 484

Опубликована: Март 27, 2022

Many previous studies have estimated the carrying capacity and feasible planetary boundaries for humankind. However, less attention has been given to how we will sustainably feed 9 billion people in 2050 beyond. Here, review major natural resources that limit food production discuss possible options, measures, strategies a human population of Currently, greatly depends on external inputs, e.g., irrigation water fertilizers, but these approaches are not sustainable. Due unbalanced distribution global large regional differences, urbanization expansion causes important areas face more serious arable land resource shortages. Hence, feeding beyond remains an immense challenge humankind, this requires novel planning better decision-making tools. Importantly, measures employed must be region-/country-specific because significant differences socioeconomic characteristics environmental different parts world. Considering impact unexpected extreme events (e.g., pandemic war) future, trade translocation goods also challenges, processes consider influences at both scales.

Язык: Английский

Процитировано

160
Human impacts outpace natural processes in the Amazon DOI
James S. Albert, Ana Carolina Carnaval, Suzette G. A. Flantua

и другие.

Science, Год журнала: 2023, Номер 379(6630)

Опубликована: Янв. 26, 2023

Amazonian environments are being degraded by modern industrial and agricultural activities at a pace far above anything previously known, imperiling its vast biodiversity reserves globally important ecosystem services. The most substantial threats come from regional deforestation, because of export market demands, global climate change. Amazon is currently perched to transition rapidly largely forested nonforested landscape. These changes happening much too for species, peoples, ecosystems respond adaptively. Policies prevent the worst outcomes known must be enacted immediately. We now need political will leadership act on this information. To fail biosphere, we our peril.

Язык: Английский

Процитировано

133
The changing nature of groundwater in the global water cycle DOI
Xingxing Kuang, Junguo Liu, Bridget R. Scanlon

и другие.

Science, Год журнала: 2024, Номер 383(6686)

Опубликована: Фев. 29, 2024

In recent decades, climate change and other anthropogenic activities have substantially affected groundwater systems worldwide. These impacts include changes in recharge, discharge, flow, storage, distribution. Climate-induced shifts are evident altered recharge rates, greater contribution to streamflow glacierized catchments, enhanced flow permafrost areas. Direct withdrawal injection, regional regime modification, water table storage alterations, redistribution of embedded foods globally. Notably, extraction contributes sea level rise, increasing the risk inundation coastal The role global cycle is becoming more dynamic complex. Quantifying these essential ensure sustainable supply fresh resources for people ecosystems.

Язык: Английский

Процитировано

108
Hotspots for social and ecological impacts from freshwater stress and storage loss DOI Creative Commons
Xander Huggins, Tom Gleeson, Matti Kummu

и другие.

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Янв. 21, 2022

Abstract Humans and ecosystems are deeply connected to, through, the hydrological cycle. However, impacts of change on social ecological systems infrequently evaluated together at global scale. Here, we focus potential for from freshwater stress storage loss. We find basins with existing drying (losing storage) disproportionately, exacerbating challenges facing water stressed versus non-stressed world. map gradient in social-ecological vulnerability to loss identify hotspot prioritization ( n = 168). These most-vulnerable encompass over 1.5 billion people, 17% food crop production, 13% gross domestic product, hundreds significant wetlands. There thus substantial benefits reducing basins, which can be achieved through hydro-diplomacy, adaptive capacity building, integrated resources management practices.

Язык: Английский

Процитировано

105
Sorbents for Atmospheric Water Harvesting: From Design Principles to Applications DOI
Wen Shi, Weixin Guan,

Chuxin Lei

и другие.

Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(43)

Опубликована: Авг. 12, 2022

Water scarcity caused by climate change and population growth poses a grave threat to human society. Of the different water purification technologies put forward, one presents promising strategy that is spatially or temporally non-restricted-atmospheric harvesting (AWH). Here we review recent progress in design study of AWH sorbents, ranging from innovative chemistries integration sophisticated architectures functional components, clarify structure-property-performance relationship governs capture release processes. Features limitations each type sorbents are summarized elucidate optimal working environments modes. Progress applications extending generation thermal management agriculture discussed. Future developments regarding material modifications, performance measurements, system optimizations provided overcome lingering barriers sorbent implementation.

Язык: Английский

Процитировано

93
Challenges and solutions to biodiversity conservation in arid lands DOI
Yuanming Zhang, Akash Tariq, Alice C. Hughes

и другие.

The Science of The Total Environment, Год журнала: 2022, Номер 857, С. 159695 - 159695

Опубликована: Окт. 24, 2022

Язык: Английский

Процитировано

84
Decline in Iran’s groundwater recharge DOI Creative Commons
Roohollah Noori, Mohsen Maghrebi, Søren Jessen

и другие.

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Окт. 21, 2023

Groundwater recharge feeds aquifers supplying fresh-water to a population over 80 million in Iran-a global hotspot for groundwater depletion. Using an extended database comprising abstractions from one wells, springs, and qanats, 2002 2017, here we show significant decline of around -3.8 mm/yr the nationwide recharge. This is primarily attributed unsustainable water environmental resources management, exacerbated by decadal changes climatic conditions. However, it important note that former's contribution outweighs latter. Our results average annual amount (i.e., ~40 mm/yr) more than reported runoff Iran ~32 mm/yr), suggesting surface main contributor Such could further exacerbate already dire aquifer depletion situation Iran, with devastating consequences country's natural environment socio-economic development.

Язык: Английский

Процитировано

83
Groundwater depletion in California’s Central Valley accelerates during megadrought DOI Creative Commons
Pang‐Wei Liu, J. S. Famiglietti, A. J. Purdy

и другие.

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Дек. 19, 2022

Abstract Groundwater provides nearly half of irrigation water supply, and it enables resilience during drought, but in many regions the world, remains poorly, if at all managed. In heavily agricultural like California’s Central Valley, where groundwater management is being slowly implemented over a 27-year period that began 2015, two–thirds or more which has led to falling tables, drying wells, subsiding land, its long-term disappearance. Here we use two decades observations from NASA’s GRACE satellite missions show rate depletion Valley been accelerating since 2003 (1.86 km 3 /yr, 1961–2021; 2.41 2003–2021; 8.58 2019–2021), megadrought southwestern North America. Results suggest need for expedited implementation ensure availability increasingly intense droughts future.

Язык: Английский

Процитировано

78
Biomimetic Hygroscopic Fibrous Membrane with Hierarchically Porous Structure for Rapid Atmospheric Water Harvesting DOI
Meng Xia, Dong Cai,

Jianbo Feng

и другие.

Advanced Functional Materials, Год журнала: 2023, Номер 33(26)

Опубликована: Март 20, 2023

Abstract Sorption‐based atmospheric water generation (SAWG) is a promising strategy to alleviate the drinkable scarcity of arid regions. However, high‐water production efficiency remains challenging due sluggish sorption/desorption kinetics. Herein, composite sorbent@biomimetic fibrous membrane (PPy‐COF@Trilayer‐LiCl) reported by mimicking nature's Murray networks, which exhibits outstanding uptake performance 0.77–2.56 g −1 at wide range relative humidity 30%–80% within 50 min and fast release capacity over 95% adsorbed that can be released 10 under one sun irradiation. The superior sorption–desorption kinetics PPy‐COF@Trilayer‐LiCl are enabled novel hierarchically porous structure, also critical factor lead directional rapid transport vapor diffusion. Moreover, as proof‐of‐concept demonstration, wearable SAWG device established, operate cycles per day in outdoor condition produce high yield clean reaching up 3.91 kg m −2 . This study demonstrates for developing advanced solar‐driven materials with efficient properties.

Язык: Английский

Процитировано

50