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With growing water scarcity in many parts of the world and projections that indicate the need to increase agricultural production and, concurrently, agricultural water use, it is increasingly advocated to focus efforts on improving agricultural water productivity and efficiency-and thus achieve more crop per drop. Many international organizations concerned with water management are also promoting these efforts, and significant public and private investments are being made in both developed and developing countries. Yet some serious problems are associated with this approach. They include conceptual issues, the methods used for measuring agricultural water productivity and efficiency, and the application of these concepts and methods in different contexts-all of which influence the choice of interventions and the evaluation of their implementation. The report aims to shed further light on these issues: first, by clarifying some of the underlying concepts in the discussion of agricultural water productivity and efficiency; second, by reviewing and analyzing the available methods for assessing water productivity and efficiency, including single-factor productivity measures, total factor productivity indices, frontier methods, and deductive methods; and, third, by discussing their application and relevance in different contexts. As a background for this analysis, the report highlights the central role of water use in irrigated agriculture and its link with increasing water scarcity. An underlying framework of the analysis is the view of the water economy transitioning from an expansionary to a mature phase. The report further develops this framework to reflect water management issues in irrigated agriculture. The framework is then applied to make the case that, with increasing water scarcity, the ongoing efforts for improving agricultural water productivity and efficiency need to move beyond crop per drop approaches, because they are in many circumstances an insufficient and sometimes counterproductive attempt to adapt agricultural water management to a maturing water economy.
Adaptation Measures --- Crop Per Drop --- Deductive Methods --- Frontier Methods --- Irrigated Agriculture --- Irrigation Efficiency --- Maturing Water Economy --- Productivity --- Single-Factor Productivity --- Water Conservation --- Water Productivity --- Water Scarcity
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The Anthropocene, the time of humans. Never has human influence on the functioning of the planet been greater or in more urgent need of mitigation. Climate change, the accelerated warming of the planet’s surface attributed to human activities, is now at the forefront of global politics. The agriculture sector not only contributes to climate change but also feels the severity of its effects, with the water, carbon and nitrogen cycles all subject to modification as a result. Crop production systems are each subject to different types of threat and levels of threat intensity. There is however significant potential to both adapt to and mitigate climate change within the agricultural sector and reduce these threats. Each solution must be implemented in a sustainable manner and tailored to individual regions and farming systems. This Special Issue evaluates a variety of potential climate change adaptation and mitigation techniques that account for this spatial variation, including modification to cropping systems, Climate-Smart Agriculture and the development and growth of novel crops and crop varieties.
Research & information: general --- Biology, life sciences --- Technology, engineering, agriculture --- rice field --- mitigation techniques --- greenhouse gas emissions --- life cycle assessment --- farmer acceptance --- incentive measures --- income distribution --- cost distribution --- vulnerable region --- adaptation measures --- Bangladesh --- ENSO --- Southern Oscillation Index --- SOI --- El Niño --- La Niña --- soil water --- environment type --- climate adaptation --- management practices --- crop model --- APSIM --- CanESM2 --- HadCM3 --- precipitation --- temperature --- winter wheat yield --- radiative warming --- atmospheric phytoremediation --- N2O --- nitrous oxide reductase --- N2OR --- nosZ --- fertilizer --- crop breeding --- transgenic --- GHG --- extreme weather --- agriculture production --- return level --- extreme value theory --- weather --- risk --- climate change adaptation --- livelihoods --- geographic information --- agriculture --- resilience --- future crop yields --- climate change impacts --- CO2 fertilization --- corn --- rice --- soybeans --- climate-smart agriculture --- livelihood transformation --- Guatemala --- climate change --- climate change-induced impacts --- smallholder farmers --- drought-prone low lands --- rural Sidama --- southern Ethiopia --- chill accumulation --- peaches --- perennial crops --- Georgia --- South Carolina --- climate-departure --- crop-climate departure --- crop suitability --- Ecocrop --- food security --- West Africa --- crop-climate departure --- planting month --- CORDEX --- renewable energy technologies --- sustainability --- clean energy --- bioenergy --- biogas --- industrial hemp --- anaerobic digestion --- inland valley development --- hydroclimatic hazard --- water control structure --- sustainable rice production --- rice field --- mitigation techniques --- greenhouse gas emissions --- life cycle assessment --- farmer acceptance --- incentive measures --- income distribution --- cost distribution --- vulnerable region --- adaptation measures --- Bangladesh --- ENSO --- Southern Oscillation Index --- SOI --- El Niño --- La Niña --- soil water --- environment type --- climate adaptation --- management practices --- crop model --- APSIM --- CanESM2 --- HadCM3 --- precipitation --- temperature --- winter wheat yield --- radiative warming --- atmospheric phytoremediation --- N2O --- nitrous oxide reductase --- N2OR --- nosZ --- fertilizer --- crop breeding --- transgenic --- GHG --- extreme weather --- agriculture production --- return level --- extreme value theory --- weather --- risk --- climate change adaptation --- livelihoods --- geographic information --- agriculture --- resilience --- future crop yields --- climate change impacts --- CO2 fertilization --- corn --- rice --- soybeans --- climate-smart agriculture --- livelihood transformation --- Guatemala --- climate change --- climate change-induced impacts --- smallholder farmers --- drought-prone low lands --- rural Sidama --- southern Ethiopia --- chill accumulation --- peaches --- perennial crops --- Georgia --- South Carolina --- climate-departure --- crop-climate departure --- crop suitability --- Ecocrop --- food security --- West Africa --- crop-climate departure --- planting month --- CORDEX --- renewable energy technologies --- sustainability --- clean energy --- bioenergy --- biogas --- industrial hemp --- anaerobic digestion --- inland valley development --- hydroclimatic hazard --- water control structure --- sustainable rice production
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The importance of viticulture and the winemaking socio-economic sector is acknowledged worldwide. The most renowned winemaking regions show very specific environmental characteristics, where climate usually plays a central role. Considering the strong influence of weather and climatic factors on grapevine yields and berry quality attributes, climate change may indeed significantly impact this crop. Recent trends already point to a pronounced increase in growing season mean temperatures, as well as changes in precipitation regimes, which have been influencing wine typicity across some of the most renowned winemaking regions worldwide. Moreover, several climate scenarios give evidence of enhanced stress conditions for grapevine growth until the end of the century. Although grapevines have high resilience, the clear evidence for significant climate change in the upcoming decades urges adaptation and mitigation measures to be taken by sector stakeholders. To provide hints on the abovementioned issues, we have edited a Special Issue entitled “Viticulture and Winemaking under Climate Change”. Contributions from different fields were considered, including crop and climate modeling, and potential adaptation measures against these threats. The current Special Issue allows for the expansion of scientific knowledge in these particular fields of research, as well as providing a path for future research.
stomatal conductance --- mechanical thinning --- predawn water potential --- modeling --- CIRG --- adaptation --- EURO-CORDEX --- vineyards --- Portugal --- yield formation --- photosynthesis --- Douro wine region --- rootstock --- autochthonous cultivar --- plant architecture --- climatic influence --- multi-temporal analysis --- intercellular CO2 --- winemaking --- leaf water potential --- micrometeorology --- Touriga Franca --- dry mass partitioning --- ’Uva Rey’ --- crop water stress index --- global warming --- adaptation measures --- kaolin --- wine --- natural hail --- rate of anthocyanin accumulation --- grape berry tissues --- water status --- temperature --- low-input --- Vitis vinifera L. --- photosynthetic pigments --- S-ABA --- unmanned aerial vehicles --- climate --- water limitation --- elevated CO2 --- spatial variability --- bioactive compounds --- FACE --- Touriga Nacional --- grapevine --- PRI --- general circulation model --- Vitis vinifera --- berry composition --- sensory analysis --- B. cinerea mold --- crop model --- vigour maps --- irrigation --- precision viticulture --- phenology modelling platform --- SO2 pads --- RCP4.5 --- climate change --- viticultural training system --- crop management --- microclimate --- Virtual Riesling --- light micro-climates --- remote sensing --- grape --- pulse amplitude modulated (PAM) fluorometry --- modelling --- mitigation strategies --- normalized difference vegetation index --- crop surface model --- plant material --- grape quality --- parasitoid --- production system --- Botrytis cinerea --- technological and phenolic ripeness --- training system --- WI --- phenological model --- phenolics --- table grapes --- Vitis vinifera (L.) --- phenology --- assimilation --- grapevine pest --- drought --- viticulture --- physiological processes --- mealybug --- leaf area
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The purpose of the Special Issue was to collect the results of research and experience on the consequences of the COVID-19 pandemic for the energy sector and the energy market, broadly understood, that were visible after a year. In particular, the impact of COVID-19 on the energy sector in the EU, including Poland, and the US was examined. The topics concerned various issues, e.g., the situation of energy companies, including those listed on the stock exchange, mining companies, and those dealing with renewable energy. The topics related to the development of electromobility, managerial competences, energy expenditure of local government units, sustainable development of energy, and energy poverty during a pandemic were also discussed.
Research & information: general --- Physics --- energy manager --- competences --- labor market --- energy industry --- COVID-19 --- decarbonizing transport --- energy efficiency --- electrify transport --- zero-emissions vehicles --- sustainable transport --- electric car charging points --- novel coronavirus pandemic --- alternative energy --- stock market sectors --- stock market companies --- energy --- energy company --- efficiency --- financial analysis --- pandemic --- environmental protection --- environmental problems --- greenhouse gas --- particulate matter (PM) --- renewable energy --- corruption --- electromobility --- companies in the Transport-Shipping-Logistics Sector --- pandemic-COVID-19 --- development --- self-government units --- energy consumption --- monitoring --- energy consumption effectiveness --- sustainable energy development --- households --- OPEC --- crude price --- volatility --- storage crisis --- futures --- shale --- electric vehicles market and policy --- electric vehicles --- purchase intention --- e-mobility --- consumers preferences --- consumer decision making --- social values --- delay discounting --- cultural factors --- economic factors --- machine learning methods --- sustainability --- energy poverty --- economic uncertainty --- energy policy --- policy measures --- reducing energy intensity --- ranking of countries’ energy intensity --- multi-criteria analysis --- sectors of the economy --- economic effects of the pandemic --- social effects of the pandemic --- countries of Western Europe --- countries of Central and Eastern Europe --- mining sector --- initiatives and adaptation measures --- economic situation --- COVID-19 pandemic --- fossil fuel energy --- carbon dioxide emissions --- nonlinear autoregressive distributed lag model --- frequency domain causality test --- Markow switching regression --- photovoltaics --- pandemics --- changes in energetic balance due to COVID-19 --- renewable sources of energy during pandemics --- United States --- energy sector --- fossil fuel --- emissions --- expenditures
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This book is a hard copy of the editorial and all the papers in a Special Issue of the peer-reviewed open access journal ‘Water’ on the theme ‘Managed Aquifer Recharge for Water Resilience’. Managed aquifer recharge (MAR) is the purposeful recharge of water to aquifers for subsequent recovery or environmental benefit. MAR is increasingly used to make water supplies resilient to drought, climate change and deteriorating water quality, and to protect ecosystems from declining groundwater levels. Global MAR has grown exponentially to 10 cu.km/year and will increase ten-fold within a few decades. Well informed hydrogeologists, engineers and water quality scientists are needed to ensure that this investment is effective in meeting increasingly pressing needs. This compilation contains lessons from many examples of existing projects, including several national and continental summaries. It also addresses the elements essential for identifying and advancing projects such as mapping aquifer suitability and opportunities, policy matters, operational issues, and some innovations in MAR methods and monitoring. This collection exemplifies the state of progress in the science and practice of MAR and is intended to be useful, at least to water managers, water utilities, agricultural water users and urban planners, to facilitate water resilience through new MAR projects.
Research & information: general --- ASR --- recycled water --- well clogging --- geochemical analysis --- filtration --- biofouling --- risk management --- Managed Aquifer Recharge (MAR) --- aquifer storage and recovery (ASR) --- strategic storage --- Northern Australia --- Managed Aquifer Recharge --- MAR --- climate change --- water management --- IWRM --- adaptation measures --- indicators --- Spain --- groundwater --- mapping --- Sweden --- decision-support --- riverbank filtration --- pharmaceuticals in groundwater --- removal of pharmaceuticals --- managed aquifer recharge --- web GIS --- web tools --- multi-criteria decision analysis --- suitability mapping --- anthropic forcing --- meteorological forcing --- lake bank filtration --- mixing ratios --- environmental tracer --- time-varying mixing model --- sensitivity analysis --- Ulaanbaatar --- MATLAB --- FEFLOW --- artificial recharging scenarios --- Mexico --- legal --- regulatory --- framework --- LAN (Law of the Nation’s Waters) --- reclaimed water --- arid --- semi-arid --- environment protection --- health protection --- safety --- risk --- ecosystems --- contaminants --- recycling --- drinking water --- regulation --- governance --- SAT --- tillage --- infiltration pond --- infiltration rate --- soil compaction --- types of MAR for irrigation --- Yellow River Irrigation District --- adaptability zoning evaluation --- online flow-cytometry --- enzymatic activity --- ultrafiltration --- ATP --- managed aquifer recharge (MAR) --- induced bank filtration (IBF) --- geographic information science (GISc) --- geographic information systems (GIS) --- drinking water supply --- guidelines --- climate adaptation --- stream temperature --- streamflow --- Henry’s Fork --- fisheries --- Snake River --- Idaho --- water rights --- infiltration basin --- cost function --- suitability map --- GIS-MCDA --- water supply security model --- risk assessment --- decision support --- dynamic --- probabilistic --- integrated water resource management --- organic amendments --- contaminants of emerging concern (CECs) --- pathogens --- new water challenges --- Underground Transfer of Floods for Irrigation --- droughts --- floods --- groundwater depletion --- groundwater recharge --- water quality --- water level monitoring --- recharge performance --- rainwater harvesting --- India --- water security --- urban water management --- semiarid --- Social Technology --- developing countries --- Africa --- water banking --- water crisis
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This book is a hard copy of the editorial and all the papers in a Special Issue of the peer-reviewed open access journal ‘Water’ on the theme ‘Managed Aquifer Recharge for Water Resilience’. Managed aquifer recharge (MAR) is the purposeful recharge of water to aquifers for subsequent recovery or environmental benefit. MAR is increasingly used to make water supplies resilient to drought, climate change and deteriorating water quality, and to protect ecosystems from declining groundwater levels. Global MAR has grown exponentially to 10 cu.km/year and will increase ten-fold within a few decades. Well informed hydrogeologists, engineers and water quality scientists are needed to ensure that this investment is effective in meeting increasingly pressing needs. This compilation contains lessons from many examples of existing projects, including several national and continental summaries. It also addresses the elements essential for identifying and advancing projects such as mapping aquifer suitability and opportunities, policy matters, operational issues, and some innovations in MAR methods and monitoring. This collection exemplifies the state of progress in the science and practice of MAR and is intended to be useful, at least to water managers, water utilities, agricultural water users and urban planners, to facilitate water resilience through new MAR projects.
ASR --- recycled water --- well clogging --- geochemical analysis --- filtration --- biofouling --- risk management --- Managed Aquifer Recharge (MAR) --- aquifer storage and recovery (ASR) --- strategic storage --- Northern Australia --- Managed Aquifer Recharge --- MAR --- climate change --- water management --- IWRM --- adaptation measures --- indicators --- Spain --- groundwater --- mapping --- Sweden --- decision-support --- riverbank filtration --- pharmaceuticals in groundwater --- removal of pharmaceuticals --- managed aquifer recharge --- web GIS --- web tools --- multi-criteria decision analysis --- suitability mapping --- anthropic forcing --- meteorological forcing --- lake bank filtration --- mixing ratios --- environmental tracer --- time-varying mixing model --- sensitivity analysis --- Ulaanbaatar --- MATLAB --- FEFLOW --- artificial recharging scenarios --- Mexico --- legal --- regulatory --- framework --- LAN (Law of the Nation’s Waters) --- reclaimed water --- arid --- semi-arid --- environment protection --- health protection --- safety --- risk --- ecosystems --- contaminants --- recycling --- drinking water --- regulation --- governance --- SAT --- tillage --- infiltration pond --- infiltration rate --- soil compaction --- types of MAR for irrigation --- Yellow River Irrigation District --- adaptability zoning evaluation --- online flow-cytometry --- enzymatic activity --- ultrafiltration --- ATP --- managed aquifer recharge (MAR) --- induced bank filtration (IBF) --- geographic information science (GISc) --- geographic information systems (GIS) --- drinking water supply --- guidelines --- climate adaptation --- stream temperature --- streamflow --- Henry’s Fork --- fisheries --- Snake River --- Idaho --- water rights --- infiltration basin --- cost function --- suitability map --- GIS-MCDA --- water supply security model --- risk assessment --- decision support --- dynamic --- probabilistic --- integrated water resource management --- organic amendments --- contaminants of emerging concern (CECs) --- pathogens --- new water challenges --- Underground Transfer of Floods for Irrigation --- droughts --- floods --- groundwater depletion --- groundwater recharge --- water quality --- water level monitoring --- recharge performance --- rainwater harvesting --- India --- water security --- urban water management --- semiarid --- Social Technology --- developing countries --- Africa --- water banking --- water crisis
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The Anthropocene, the time of humans. Never has human influence on the functioning of the planet been greater or in more urgent need of mitigation. Climate change, the accelerated warming of the planet’s surface attributed to human activities, is now at the forefront of global politics. The agriculture sector not only contributes to climate change but also feels the severity of its effects, with the water, carbon and nitrogen cycles all subject to modification as a result. Crop production systems are each subject to different types of threat and levels of threat intensity. There is however significant potential to both adapt to and mitigate climate change within the agricultural sector and reduce these threats. Each solution must be implemented in a sustainable manner and tailored to individual regions and farming systems. This Special Issue evaluates a variety of potential climate change adaptation and mitigation techniques that account for this spatial variation, including modification to cropping systems, Climate-Smart Agriculture and the development and growth of novel crops and crop varieties.
rice field --- mitigation techniques --- greenhouse gas emissions --- life cycle assessment --- farmer acceptance --- incentive measures --- income distribution --- cost distribution --- vulnerable region --- adaptation measures --- Bangladesh --- ENSO --- Southern Oscillation Index --- SOI --- El Niño --- La Niña --- soil water --- environment type --- climate adaptation --- management practices --- crop model --- APSIM --- CanESM2 --- HadCM3 --- precipitation --- temperature --- winter wheat yield --- radiative warming --- atmospheric phytoremediation --- N2O --- nitrous oxide reductase --- N2OR --- nosZ --- fertilizer --- crop breeding --- transgenic --- GHG --- extreme weather --- agriculture production --- return level --- extreme value theory --- weather --- risk --- climate change adaptation --- livelihoods --- geographic information --- agriculture --- resilience --- future crop yields --- climate change impacts --- CO2 fertilization --- corn --- rice --- soybeans --- climate-smart agriculture --- livelihood transformation --- Guatemala --- climate change --- climate change-induced impacts --- smallholder farmers --- drought-prone low lands --- rural Sidama --- southern Ethiopia --- chill accumulation --- peaches --- perennial crops --- Georgia --- South Carolina --- climate-departure --- crop–climate departure --- crop suitability --- Ecocrop --- food security --- West Africa --- crop-climate departure --- planting month --- CORDEX --- renewable energy technologies --- sustainability --- clean energy --- bioenergy --- biogas --- industrial hemp --- anaerobic digestion --- inland valley development --- hydroclimatic hazard --- water control structure --- sustainable rice production --- n/a --- El Niño --- La Niña
Choose an application
This book is a hard copy of the editorial and all the papers in a Special Issue of the peer-reviewed open access journal ‘Water’ on the theme ‘Managed Aquifer Recharge for Water Resilience’. Managed aquifer recharge (MAR) is the purposeful recharge of water to aquifers for subsequent recovery or environmental benefit. MAR is increasingly used to make water supplies resilient to drought, climate change and deteriorating water quality, and to protect ecosystems from declining groundwater levels. Global MAR has grown exponentially to 10 cu.km/year and will increase ten-fold within a few decades. Well informed hydrogeologists, engineers and water quality scientists are needed to ensure that this investment is effective in meeting increasingly pressing needs. This compilation contains lessons from many examples of existing projects, including several national and continental summaries. It also addresses the elements essential for identifying and advancing projects such as mapping aquifer suitability and opportunities, policy matters, operational issues, and some innovations in MAR methods and monitoring. This collection exemplifies the state of progress in the science and practice of MAR and is intended to be useful, at least to water managers, water utilities, agricultural water users and urban planners, to facilitate water resilience through new MAR projects.
Research & information: general --- ASR --- recycled water --- well clogging --- geochemical analysis --- filtration --- biofouling --- risk management --- Managed Aquifer Recharge (MAR) --- aquifer storage and recovery (ASR) --- strategic storage --- Northern Australia --- Managed Aquifer Recharge --- MAR --- climate change --- water management --- IWRM --- adaptation measures --- indicators --- Spain --- groundwater --- mapping --- Sweden --- decision-support --- riverbank filtration --- pharmaceuticals in groundwater --- removal of pharmaceuticals --- managed aquifer recharge --- web GIS --- web tools --- multi-criteria decision analysis --- suitability mapping --- anthropic forcing --- meteorological forcing --- lake bank filtration --- mixing ratios --- environmental tracer --- time-varying mixing model --- sensitivity analysis --- Ulaanbaatar --- MATLAB --- FEFLOW --- artificial recharging scenarios --- Mexico --- legal --- regulatory --- framework --- LAN (Law of the Nation’s Waters) --- reclaimed water --- arid --- semi-arid --- environment protection --- health protection --- safety --- risk --- ecosystems --- contaminants --- recycling --- drinking water --- regulation --- governance --- SAT --- tillage --- infiltration pond --- infiltration rate --- soil compaction --- types of MAR for irrigation --- Yellow River Irrigation District --- adaptability zoning evaluation --- online flow-cytometry --- enzymatic activity --- ultrafiltration --- ATP --- managed aquifer recharge (MAR) --- induced bank filtration (IBF) --- geographic information science (GISc) --- geographic information systems (GIS) --- drinking water supply --- guidelines --- climate adaptation --- stream temperature --- streamflow --- Henry’s Fork --- fisheries --- Snake River --- Idaho --- water rights --- infiltration basin --- cost function --- suitability map --- GIS-MCDA --- water supply security model --- risk assessment --- decision support --- dynamic --- probabilistic --- integrated water resource management --- organic amendments --- contaminants of emerging concern (CECs) --- pathogens --- new water challenges --- Underground Transfer of Floods for Irrigation --- droughts --- floods --- groundwater depletion --- groundwater recharge --- water quality --- water level monitoring --- recharge performance --- rainwater harvesting --- India --- water security --- urban water management --- semiarid --- Social Technology --- developing countries --- Africa --- water banking --- water crisis --- ASR --- recycled water --- well clogging --- geochemical analysis --- filtration --- biofouling --- risk management --- Managed Aquifer Recharge (MAR) --- aquifer storage and recovery (ASR) --- strategic storage --- Northern Australia --- Managed Aquifer Recharge --- MAR --- climate change --- water management --- IWRM --- adaptation measures --- indicators --- Spain --- groundwater --- mapping --- Sweden --- decision-support --- riverbank filtration --- pharmaceuticals in groundwater --- removal of pharmaceuticals --- managed aquifer recharge --- web GIS --- web tools --- multi-criteria decision analysis --- suitability mapping --- anthropic forcing --- meteorological forcing --- lake bank filtration --- mixing ratios --- environmental tracer --- time-varying mixing model --- sensitivity analysis --- Ulaanbaatar --- MATLAB --- FEFLOW --- artificial recharging scenarios --- Mexico --- legal --- regulatory --- framework --- LAN (Law of the Nation’s Waters) --- reclaimed water --- arid --- semi-arid --- environment protection --- health protection --- safety --- risk --- ecosystems --- contaminants --- recycling --- drinking water --- regulation --- governance --- SAT --- tillage --- infiltration pond --- infiltration rate --- soil compaction --- types of MAR for irrigation --- Yellow River Irrigation District --- adaptability zoning evaluation --- online flow-cytometry --- enzymatic activity --- ultrafiltration --- ATP --- managed aquifer recharge (MAR) --- induced bank filtration (IBF) --- geographic information science (GISc) --- geographic information systems (GIS) --- drinking water supply --- guidelines --- climate adaptation --- stream temperature --- streamflow --- Henry’s Fork --- fisheries --- Snake River --- Idaho --- water rights --- infiltration basin --- cost function --- suitability map --- GIS-MCDA --- water supply security model --- risk assessment --- decision support --- dynamic --- probabilistic --- integrated water resource management --- organic amendments --- contaminants of emerging concern (CECs) --- pathogens --- new water challenges --- Underground Transfer of Floods for Irrigation --- droughts --- floods --- groundwater depletion --- groundwater recharge --- water quality --- water level monitoring --- recharge performance --- rainwater harvesting --- India --- water security --- urban water management --- semiarid --- Social Technology --- developing countries --- Africa --- water banking --- water crisis
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