42 résultat(s) recherche sur le mot-clé 'WATER RESOURCES'    

  trié(s) par (Pertinence décroissant(e), Titre croissant(e)) 

Charting out the future agricultural trade and its impact on water resources / M. Tuninetti in Science of the Total Environment, vol. 714 (20 April 2020)  

Public ISBD [article]  inScience of the Total Environment > vol. 714 (20 April 2020) . - p. 1-12 Titre : Charting out the future agricultural trade and its impact on water resources Type de document : objet à 3 dimensions, artefacts, ... Auteurs : M. Tuninetti, Auteur ; F. Laio ; L. Ridolfi, Auteur Année de publication : 2020 Article en page(s) : p. 1-12 Langues : Anglais (eng) Langues originales : Anglais (eng) Catégories : A HISTOIRE - Pays et ensemble de pays:Histoire du Monde Rural:Agriculture ; F POPULATIONS - ETUDES DE CAS:Economic development ; F POPULATIONS - ETUDES DE CAS:Environmental impact ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Pollution:Pollution de l'eau Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  AGRICULTURAL TRADE  COMMERCE AGRICOLE  WATER RESOURCES  RESSOURCE EN EAU  HUMAN FEEDING  ALIMENTATION HUMAINE  FEED INDUSTRY  INDUSTRIE DE L'ALIMENTATION ANIMALE  WATER FOOTPRINT  EMPREINTE HYDRIQUE  IMPACT SUR L'ENVIRONNEMENT  WATER POLLUTION  WATER USE  UTILISATION DE L'EAU  DEVELOPPEMENT ECONOMIQUE Résumé : International agricultural trade triggers inter-dependency among distant countries, not only in economic terms but also under an environmental perspective. Agricultural trade has been shown to drive environmental threats pertaining to biodiversity loss and depletion and pollution of freshwater resources. Meanwhile, trade can also encourage production where it is most efficient, hence minimizing the use of natural resources required by agriculture. In this study, we provide a country-level assessment of the future international trade for 6 primary crops and 3 animal products composing 70% of the human diet caloric content. We set up four variegate socio-economic scenarios with different level of economic developments, diets habits, population growth dynamics, and levels of market liberalization. Results show that the demand of agricultural goods and the correspondent trade flow will increase with respect to current levels by 10–50% and 74–178% by 2050, respectively. The largest increase in the amount of traded goods is expected under the Economic Optimism scenario that will see an average trade flow of 2830 kcal/cap/day (i.e., nearly doubling the current per-capita flow). Most of the increase will be driven by the trade of crops for animal feeding, particularly maize will be the most traded crop. The trade networks architecture in 2050 and 2080 will be very different from the one we actually know, with a clear shift of the trade pole from the Western toward the Eastern economies. The dramatic changes of global food-sources and trade patterns will jeopardize the water resources of new regions while exacerbating the pressure in those areas that will continue serving food also in the future. In spite of this, trade may annually save around 40–60 m3 of water per person, compared to a situation where countries are self-sufficient. En ligne : https://doi.org/10.1016/j.scitotenv.2020.136626 Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=248118 [article] Charting out the future agricultural trade and its impact on water resources [objet à 3 dimensions, artefacts, ...] / M. Tuninetti, Auteur ; F. Laio ; L. Ridolfi, Auteur . - 2020 . - p. 1-12. Langues : Anglais (eng) Langues originales : Anglais (eng) in Science of the Total Environment > vol. 714 (20 April 2020) . - p. 1-12 Catégories : A HISTOIRE - Pays et ensemble de pays:Histoire du Monde Rural:Agriculture ; F POPULATIONS - ETUDES DE CAS:Economic development ; F POPULATIONS - ETUDES DE CAS:Environmental impact ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Pollution:Pollution de l'eau Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  AGRICULTURAL TRADE  COMMERCE AGRICOLE  WATER RESOURCES  RESSOURCE EN EAU  HUMAN FEEDING  ALIMENTATION HUMAINE  FEED INDUSTRY  INDUSTRIE DE L'ALIMENTATION ANIMALE  WATER FOOTPRINT  EMPREINTE HYDRIQUE  IMPACT SUR L'ENVIRONNEMENT  WATER POLLUTION  WATER USE  UTILISATION DE L'EAU  DEVELOPPEMENT ECONOMIQUE Résumé : International agricultural trade triggers inter-dependency among distant countries, not only in economic terms but also under an environmental perspective. Agricultural trade has been shown to drive environmental threats pertaining to biodiversity loss and depletion and pollution of freshwater resources. Meanwhile, trade can also encourage production where it is most efficient, hence minimizing the use of natural resources required by agriculture. In this study, we provide a country-level assessment of the future international trade for 6 primary crops and 3 animal products composing 70% of the human diet caloric content. We set up four variegate socio-economic scenarios with different level of economic developments, diets habits, population growth dynamics, and levels of market liberalization. Results show that the demand of agricultural goods and the correspondent trade flow will increase with respect to current levels by 10–50% and 74–178% by 2050, respectively. The largest increase in the amount of traded goods is expected under the Economic Optimism scenario that will see an average trade flow of 2830 kcal/cap/day (i.e., nearly doubling the current per-capita flow). Most of the increase will be driven by the trade of crops for animal feeding, particularly maize will be the most traded crop. The trade networks architecture in 2050 and 2080 will be very different from the one we actually know, with a clear shift of the trade pole from the Western toward the Eastern economies. The dramatic changes of global food-sources and trade patterns will jeopardize the water resources of new regions while exacerbating the pressure in those areas that will continue serving food also in the future. In spite of this, trade may annually save around 40–60 m3 of water per person, compared to a situation where countries are self-sufficient. En ligne : https://doi.org/10.1016/j.scitotenv.2020.136626 Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=248118

A critical review of water resources in Greece: the key role of agricultural adaptation to climate-water effects / N.N. Kourgialas in Science of the Total Environment, vol. 775 (25 June 2021)  

Public ISBD [article]  inScience of the Total Environment > vol. 775 (25 June 2021) . - p. 1-16 Titre : A critical review of water resources in Greece: the key role of agricultural adaptation to climate-water effects Type de document : objet à 3 dimensions, artefacts, ... Auteurs : N.N. Kourgialas ; N.N. Kourgialas Année de publication : 2021 Article en page(s) : p. 1-16 Langues : Anglais (eng) Langues originales : Anglais (eng) Catégories : A HISTOIRE - Pays et ensemble de pays:Histoire de l'Europe:Europe occidentale:Grèce ; A HISTOIRE - Pays et ensemble de pays:Histoire du Monde Rural:Agriculture ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Changement climatique Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  WATER MANAGEMENT  GESTION DES EAUX  WATER RESOURCES  RESSOURCE EN EAU  ADAPTATION  ADAPTATION  ADAPTATION TO CHANGE  ADAPTATION AU CHANGEMENT  CLIMATIC CHANGE  WATER USE EFFICIENCY  EFFICIENCE D'UTILISATION DE L'EAU  IRRIGATED FARMING  CULTURE IRRIGUEE  GREECE Résumé : The management and protection of a country's water resources is a matter of high priority, ensuring the development and socio-economic stability of a country. Unquestionably, Greece is a characteristic example of this, as water distribution is highly spatially and temporally unequally distributed, while irrigation and tourist consumers as well as the pollution load are expected to be increased in the near future. Water resources in Greece are particularly affected by climate extremes, with droughts, floods and soil erosion by water being the utmost consequences. Greece consumes the greatest amount of its available water resources in the agricultural sector. Also, there is much evidence of water shortage and bad/poor chemical status of some water bodies, mainly due to saltwater intrusion in coastal agricultural areas and intensively agricultural activities. Therefore, this review provides a literature update on the quantity and quality aspects of water resources in Greece for each water body, focusing on water relation effects (aridity/drought, floods and soil erosion by water). This paper, based on different sources of information and an extensive database of water related data, collects, evaluates and groups data from a quantity and quality point of view for all the different water bodies of Greece. Specific water districts such as the Aegean islands, the eastern part of Crete, Attica and Thessaly are expected to be the most affected by climate-water impacts with reduced crops yields, a greater risk of droughts and/or floods, a loss of agricultural land, declining water availability, and degraded water resources (surface and groundwater). Based on these findings, the proposed review highlights agricultural adaptation practices for increasing water use efficiency, ensuring the sustainability of water resources in Greece. En ligne : https://doi.org/10.1016/j.scitotenv.2021.145857 Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=272720 [article] A critical review of water resources in Greece: the key role of agricultural adaptation to climate-water effects [objet à 3 dimensions, artefacts, ...] / N.N. Kourgialas ; N.N. Kourgialas . - 2021 . - p. 1-16. Langues : Anglais (eng) Langues originales : Anglais (eng) in Science of the Total Environment > vol. 775 (25 June 2021) . - p. 1-16 Catégories : A HISTOIRE - Pays et ensemble de pays:Histoire de l'Europe:Europe occidentale:Grèce ; A HISTOIRE - Pays et ensemble de pays:Histoire du Monde Rural:Agriculture ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Changement climatique Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  WATER MANAGEMENT  GESTION DES EAUX  WATER RESOURCES  RESSOURCE EN EAU  ADAPTATION  ADAPTATION  ADAPTATION TO CHANGE  ADAPTATION AU CHANGEMENT  CLIMATIC CHANGE  WATER USE EFFICIENCY  EFFICIENCE D'UTILISATION DE L'EAU  IRRIGATED FARMING  CULTURE IRRIGUEE  GREECE Résumé : The management and protection of a country's water resources is a matter of high priority, ensuring the development and socio-economic stability of a country. Unquestionably, Greece is a characteristic example of this, as water distribution is highly spatially and temporally unequally distributed, while irrigation and tourist consumers as well as the pollution load are expected to be increased in the near future. Water resources in Greece are particularly affected by climate extremes, with droughts, floods and soil erosion by water being the utmost consequences. Greece consumes the greatest amount of its available water resources in the agricultural sector. Also, there is much evidence of water shortage and bad/poor chemical status of some water bodies, mainly due to saltwater intrusion in coastal agricultural areas and intensively agricultural activities. Therefore, this review provides a literature update on the quantity and quality aspects of water resources in Greece for each water body, focusing on water relation effects (aridity/drought, floods and soil erosion by water). This paper, based on different sources of information and an extensive database of water related data, collects, evaluates and groups data from a quantity and quality point of view for all the different water bodies of Greece. Specific water districts such as the Aegean islands, the eastern part of Crete, Attica and Thessaly are expected to be the most affected by climate-water impacts with reduced crops yields, a greater risk of droughts and/or floods, a loss of agricultural land, declining water availability, and degraded water resources (surface and groundwater). Based on these findings, the proposed review highlights agricultural adaptation practices for increasing water use efficiency, ensuring the sustainability of water resources in Greece. En ligne : https://doi.org/10.1016/j.scitotenv.2021.145857 Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=272720

L'eau : ressources, exploitation, concurrence / L. Cavazza in Comptes rendus de l'Académie d'agriculture de France, vol. 80, n. 9 (1994)

Public ISBD [article]  inComptes rendus de l'Académie d'agriculture de France > vol. 80, n. 9 (1994) . - p. 11-48 Titre : L'eau : ressources, exploitation, concurrence Titre original : Water: Resources, exploitation, competition Type de document : objet à 3 dimensions, artefacts, ... Auteurs : L. Cavazza Année de publication : 1994 Article en page(s) : p. 11-48 Langues : Français (fre) Langues originales : Anglais (eng) Français (fre) Catégories : C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Economie:Conditions économiques:Comportement économique:Production:Productivité ; C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Génie civil, militaire et minier:Technologie hydraulique:Irrigation ; F POPULATIONS - ETUDES DE CAS:Demand Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  MEDITERRANEAN REGION  REGION MEDITERRANEENNE  WATER RESOURCES  RESSOURCE EN EAU  MEDITERRANEAN CLIMATE  CLIMAT MEDITERRANEEN  WATER MANAGEMENT  GESTION DES EAUX  DEMANDE  IRRIGATION WATER  EAU D'IRRIGATION  PRODUCTIVITY Résumé : Le rôle des ressources hydriques dans la région méditerranéenne est fondamental. L'article passe d'abord en revue la disponibilité des ressources en eau : les eaux de surface, 92 pour-cent de l'apport des rivières à la Méditerranée provient du côté Nord. Les nappes phréatiques utilisables par l'agriculture ne sont pas suffisamment répertoriées bien que ravitaillées par les pluies; les nappes d'eau fossile elles constituent une ressource non renouvelable. La demande d'eau potable de bonne qualité augmente avec le tourisme et l'industrialisation. L'agriculture - grosse consommatrice d'eau - ne contribue pas toujours à une intensification de l'irrigation et à une optimisation de la ressource en eau. Le scénario retenu est celui d'un développement économique modéré respectant l'environnement et utilisant les ressources en eau judicieusement dans les pays méditerranéens Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=137142 [article] L'eau : ressources, exploitation, concurrence = Water: Resources, exploitation, competition [objet à 3 dimensions, artefacts, ...] / L. Cavazza . - 1994 . - p. 11-48. Langues : Français (fre) Langues originales : Anglais (eng) Français (fre) in Comptes rendus de l'Académie d'agriculture de France > vol. 80, n. 9 (1994) . - p. 11-48 Catégories : C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Economie:Conditions économiques:Comportement économique:Production:Productivité ; C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Génie civil, militaire et minier:Technologie hydraulique:Irrigation ; F POPULATIONS - ETUDES DE CAS:Demand Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  MEDITERRANEAN REGION  REGION MEDITERRANEENNE  WATER RESOURCES  RESSOURCE EN EAU  MEDITERRANEAN CLIMATE  CLIMAT MEDITERRANEEN  WATER MANAGEMENT  GESTION DES EAUX  DEMANDE  IRRIGATION WATER  EAU D'IRRIGATION  PRODUCTIVITY Résumé : Le rôle des ressources hydriques dans la région méditerranéenne est fondamental. L'article passe d'abord en revue la disponibilité des ressources en eau : les eaux de surface, 92 pour-cent de l'apport des rivières à la Méditerranée provient du côté Nord. Les nappes phréatiques utilisables par l'agriculture ne sont pas suffisamment répertoriées bien que ravitaillées par les pluies; les nappes d'eau fossile elles constituent une ressource non renouvelable. La demande d'eau potable de bonne qualité augmente avec le tourisme et l'industrialisation. L'agriculture - grosse consommatrice d'eau - ne contribue pas toujours à une intensification de l'irrigation et à une optimisation de la ressource en eau. Le scénario retenu est celui d'un développement économique modéré respectant l'environnement et utilisant les ressources en eau judicieusement dans les pays méditerranéens Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=137142

Evaluating water resources management scenarios considering the hierarchical structure of decision-makers and ecosystem services-based criteria / M. Behboudian in Science of the Total Environment, vol. 751 (10 January 2021)  

Public ISBD [article]  inScience of the Total Environment > vol. 751 (10 January 2021) . - p. 1-14 Titre : Evaluating water resources management scenarios considering the hierarchical structure of decision-makers and ecosystem services-based criteria Type de document : objet à 3 dimensions, artefacts, ... Auteurs : M. Behboudian, Auteur ; S. Ashrafi ; K. Motlaghzadeh ; R. Kerachian, Auteur Année de publication : 2021 Article en page(s) : p. 1-14 Langues : Anglais (eng) Langues originales : Anglais (eng) Catégories : C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Administration et gestion:Technique de gestion:Recherche opérationnelle:Scénario ; C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Administration et gestion:Technique de gestion:Recherche opérationnelle:Théorie des jeux ; S SCIENCES ET TECHNIQUES:Hydrologie:Ressources en eau:Eau de surface:Lac ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Catastrophe:Catastrophe naturelle:Sécheresse Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  LAKES  WATER MANAGEMENT  GESTION DES EAUX  WATER RESOURCES  RESSOURCE EN EAU  ECOSYSTEM SERVICES  SERVICE ECOSYSTEMIQUE  DROUGHT  WATER SUPPLY  APPROVISIONNEMENT EN EAU  IRRIGATION WATER  EAU D'IRRIGATION  GAME THEORY  MIDDLE EAST  MOYEN ORIENT Résumé : This paper introduces a new methodology for evaluating water resources management scenarios considering different aspects of their hydrological ecosystem services. The temporal variations of supplied water to different demands are assessed as provisioning hydrological ecosystem services. Then, three agricultural drought management policies have been defined for each water supply-demand alternative to reduce the irrigation water and cultivated area of the agricultural demand nodes during droughts. In addition to the net primary productivity criterion (NPP) and economic profit, the ecological condition of the system has been evaluated as an ecosystem services-based criterion. To prioritize and select the best water resources management (WRM) scenario(s), a game theory-based hierarchical evidential reasoning (ER) technique with multiple decision-makers has been used. The proposed methodology has been applied to the Urmia Lake basin, which is the largest saline lake in the Middle East. The grade-based values of the criteria have been used to compare the WRM scenarios. The results show that a scenario that includes supplying 100% of the lake's water demand has the highest priority. This scenario also suggests reducing the cultivated area of dominant crops and using deficit irrigation practices. En ligne : https://doi.org/10.1016/j.scitotenv.2020.141759 Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=255515 [article] Evaluating water resources management scenarios considering the hierarchical structure of decision-makers and ecosystem services-based criteria [objet à 3 dimensions, artefacts, ...] / M. Behboudian, Auteur ; S. Ashrafi ; K. Motlaghzadeh ; R. Kerachian, Auteur . - 2021 . - p. 1-14. Langues : Anglais (eng) Langues originales : Anglais (eng) in Science of the Total Environment > vol. 751 (10 January 2021) . - p. 1-14 Catégories : C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Administration et gestion:Technique de gestion:Recherche opérationnelle:Scénario ; C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Administration et gestion:Technique de gestion:Recherche opérationnelle:Théorie des jeux ; S SCIENCES ET TECHNIQUES:Hydrologie:Ressources en eau:Eau de surface:Lac ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Catastrophe:Catastrophe naturelle:Sécheresse Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  LAKES  WATER MANAGEMENT  GESTION DES EAUX  WATER RESOURCES  RESSOURCE EN EAU  ECOSYSTEM SERVICES  SERVICE ECOSYSTEMIQUE  DROUGHT  WATER SUPPLY  APPROVISIONNEMENT EN EAU  IRRIGATION WATER  EAU D'IRRIGATION  GAME THEORY  MIDDLE EAST  MOYEN ORIENT Résumé : This paper introduces a new methodology for evaluating water resources management scenarios considering different aspects of their hydrological ecosystem services. The temporal variations of supplied water to different demands are assessed as provisioning hydrological ecosystem services. Then, three agricultural drought management policies have been defined for each water supply-demand alternative to reduce the irrigation water and cultivated area of the agricultural demand nodes during droughts. In addition to the net primary productivity criterion (NPP) and economic profit, the ecological condition of the system has been evaluated as an ecosystem services-based criterion. To prioritize and select the best water resources management (WRM) scenario(s), a game theory-based hierarchical evidential reasoning (ER) technique with multiple decision-makers has been used. The proposed methodology has been applied to the Urmia Lake basin, which is the largest saline lake in the Middle East. The grade-based values of the criteria have been used to compare the WRM scenarios. The results show that a scenario that includes supplying 100% of the lake's water demand has the highest priority. This scenario also suggests reducing the cultivated area of dominant crops and using deficit irrigation practices. En ligne : https://doi.org/10.1016/j.scitotenv.2020.141759 Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=255515

Impacts of climate change on reservoir water availability, quality and irrigation needs in a water scarce Mediterranean region (southern Portugal) / J. Rocha in Science of the Total Environment, vol. 739 (20 September 2020)  

Public ISBD [article]  inScience of the Total Environment > vol. 739 (20 September 2020) . - p. 1-13 Titre : Impacts of climate change on reservoir water availability, quality and irrigation needs in a water scarce Mediterranean region (southern Portugal) Type de document : objet à 3 dimensions, artefacts, ... Auteurs : J. Rocha, Auteur ; J.J. Keizer ; P. Beça ; P. Diogo ; J.P. Nunes ; C. Carvalho-Santos, Auteur Année de publication : 2020 Article en page(s) : p. 1-13 Langues : Anglais (eng) Langues originales : Anglais (eng) Catégories : A HISTOIRE - Pays et ensemble de pays:Histoire de l'Europe:Europe occidentale:Portugal ; C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Génie civil, militaire et minier:Technologie hydraulique:Irrigation ; F POPULATIONS - ETUDES DE CAS:Water requirements ; S SCIENCES ET TECHNIQUES:Administration de la science et de la recherche:Technologie:Technologie de pointe ; S SCIENCES ET TECHNIQUES:Approche scientifique:Méthode scientifique:Modèle de simulation Use only in connection with research and planning. ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Changement climatique Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  CLIMATIC CHANGE  BESOIN EN EAU  WATER RESERVOIRS  RESERVOIR D'EAU  WATER AVAILABITY  EAU DISPONIBLE  GLOBAL WARMING  RECHAUFFEMENT GLOBAL  WATER RESOURCES  RESSOURCE EN EAU  HIGH TECHNOLOGY  WATER SUPPLY  APPROVISIONNEMENT EN EAU  SIMULATION MODEL  MEDITERRANEAN REGION  REGION MEDITERRANEENNE Résumé : Future climate for the Mediterranean climatic region is expected to bring an increase in temperatures, decrease in the precipitation quantity and shifts in the seasonal precipitation pattern. Although the impacts of climate change on water resources have been relatively well explored for the Mediterranean climatic region, the specific consequences for reservoirs and, in particular, water availability and irrigation issues have been less studied. The objective of this work is two-fold: (i) to assess the impacts of future climate changes on water resources availability, quality (focusing on phosphorus loads as this is the limiting nutrient for eutrophication) and irrigation needs for two multipurpose reservoirs in southern Portugal; (ii) to suggest climate change adaptation strategies, especially for the agricultural sector. To this end, the SWAT model was first calibrated against existing data on reservoir inflows as well as phosphorus loads. Then, SWAT was run with climate derived EURO-CORDEX models (RCA4/RACMO22E) for four periods (1970–2000, 2010–2040, 2040–2070 and 2070–2100). Water availability was analysed using the Water Exploitation Index (WEI) that was calculated for both reservoirs combining changes of inflows and irrigation requirements. The results indicated that climate change will negatively impact water availability in both reservoirs, especially under RCP8.5. In the case of the Monte Novo reservoir, future domestic water supply could be constrained by water quality problems related with phosphorus loads. For Vigia reservoir, the high water exploitation will lead to water scarcity problems, mainly as this reservoir on present-day conditions is restrictive on irrigation requirements. Adaptation strategies such as the implementation of high end technology (e.g. soil moisture and plant water stress probes, satellite imagery and drones to evaluate water stress – NDVI) as well as the renewal of the irrigation network and adequate crop selection can help attenuating the effects of climate change on the water resources in this region. En ligne : https://doi.org/10.1016/j.scitotenv.2020.139477 Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=248149 [article] Impacts of climate change on reservoir water availability, quality and irrigation needs in a water scarce Mediterranean region (southern Portugal) [objet à 3 dimensions, artefacts, ...] / J. Rocha, Auteur ; J.J. Keizer ; P. Beça ; P. Diogo ; J.P. Nunes ; C. Carvalho-Santos, Auteur . - 2020 . - p. 1-13. Langues : Anglais (eng) Langues originales : Anglais (eng) in Science of the Total Environment > vol. 739 (20 September 2020) . - p. 1-13 Catégories : A HISTOIRE - Pays et ensemble de pays:Histoire de l'Europe:Europe occidentale:Portugal ; C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Génie civil, militaire et minier:Technologie hydraulique:Irrigation ; F POPULATIONS - ETUDES DE CAS:Water requirements ; S SCIENCES ET TECHNIQUES:Administration de la science et de la recherche:Technologie:Technologie de pointe ; S SCIENCES ET TECHNIQUES:Approche scientifique:Méthode scientifique:Modèle de simulation Use only in connection with research and planning. ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Changement climatique Mots-clés : 07 - ENVIRONNEMENT  7.3 - Eau. Gestion de l'Eau  CLIMATIC CHANGE  BESOIN EN EAU  WATER RESERVOIRS  RESERVOIR D'EAU  WATER AVAILABITY  EAU DISPONIBLE  GLOBAL WARMING  RECHAUFFEMENT GLOBAL  WATER RESOURCES  RESSOURCE EN EAU  HIGH TECHNOLOGY  WATER SUPPLY  APPROVISIONNEMENT EN EAU  SIMULATION MODEL  MEDITERRANEAN REGION  REGION MEDITERRANEENNE Résumé : Future climate for the Mediterranean climatic region is expected to bring an increase in temperatures, decrease in the precipitation quantity and shifts in the seasonal precipitation pattern. Although the impacts of climate change on water resources have been relatively well explored for the Mediterranean climatic region, the specific consequences for reservoirs and, in particular, water availability and irrigation issues have been less studied. The objective of this work is two-fold: (i) to assess the impacts of future climate changes on water resources availability, quality (focusing on phosphorus loads as this is the limiting nutrient for eutrophication) and irrigation needs for two multipurpose reservoirs in southern Portugal; (ii) to suggest climate change adaptation strategies, especially for the agricultural sector. To this end, the SWAT model was first calibrated against existing data on reservoir inflows as well as phosphorus loads. Then, SWAT was run with climate derived EURO-CORDEX models (RCA4/RACMO22E) for four periods (1970–2000, 2010–2040, 2040–2070 and 2070–2100). Water availability was analysed using the Water Exploitation Index (WEI) that was calculated for both reservoirs combining changes of inflows and irrigation requirements. The results indicated that climate change will negatively impact water availability in both reservoirs, especially under RCP8.5. In the case of the Monte Novo reservoir, future domestic water supply could be constrained by water quality problems related with phosphorus loads. For Vigia reservoir, the high water exploitation will lead to water scarcity problems, mainly as this reservoir on present-day conditions is restrictive on irrigation requirements. Adaptation strategies such as the implementation of high end technology (e.g. soil moisture and plant water stress probes, satellite imagery and drones to evaluate water stress – NDVI) as well as the renewal of the irrigation network and adequate crop selection can help attenuating the effects of climate change on the water resources in this region. En ligne : https://doi.org/10.1016/j.scitotenv.2020.139477 Permalink : https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=248149

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