scholarly journals Water Resources Management Models for Policy Assessment

Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1063
Author(s):  
Luis Garrote
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Water Availability ◽  
Policy Assessment ◽  
Resources Management ◽  
Management Models

Water resources management models support a variety of research applications, including the assessment of water availability [...]

scholarly journals Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China

2021 ◽  
Vol 9 ◽  
Author(s):  
Fubo Zhao ◽  
Shuai Ma ◽  
Yiping Wu
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Water Availability ◽  
Yellow River ◽  
Yellow River Basin ◽  
Dry Season ◽  
The Yellow River ◽  
Water Fluxes ◽  
Resources Management ◽  
The Yellow River Basin

Global warming will significantly change patterns of precipitation (P) and evapotranspiration (E) and thus the surface water availability (P minus E, P–E). Changes in P–E will challenge freshwater supply, food security, and sustainability of the ecosystems. Therefore, understanding the spatiotemporal change in P–E and its drivers is key for water resources management. Here, we quantified the changes in water availability during the driest month of the year and identified its drivers in the Yellow River Basin (YRB), China, during 1982–2016. Our results showed that 89.6% of the YRB showed declining dry-season water availability in 2000–2016 compared with 1982–1999, although the total dry-season water resources (defined as the proportion of the sum of monthly P–E to the P) remained nearly unchanged due to the increased P. Changes in seasonal P and E contributed to 87.0 and 99.0% declines in dry-season water availability, respectively, demonstrating the key role of E in net seasonal water fluxes. Increased air temperature (41.8%), vegetation greening (30.8%), and vapor pressure deficit (19.2%) were the main factors driving changes in E in the YRB during the study period. Our study highlighted a drier dry season in the YRB during 1982–2016 and illustrated that climate and vegetation changes played important roles in driving changes in dry-season water availability. Seasonal water fluxes must be considered in future water resources management in the YRB, especially in the context of climate warming and revegetation programs.

scholarly journals Water accounting for stressed river basins based on water resources management models

2016 ◽  
Vol 565 ◽  
pp. 181-190 ◽  
Author(s):  
María Pedro-Monzonís ◽  
Abel Solera ◽  
Javier Ferrer ◽  
Joaquín Andreu ◽  
Teodoro Estrela
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
River Basins ◽  
Resources Management ◽  
Management Models ◽  
Water Accounting

scholarly journals Comparative analysis of integrated water resources management models and instruments in South America: case studies in Brazil and Colombia

2013 ◽  
Vol 8 (1) ◽  
Author(s):  
Tadeu Fabricio Malheiros ◽  
Johnny Harold Rojas Padilla ◽  
Mario Alejandro Perez Rincon ◽  
Carlos Arturo Madera Parra ◽  
Mariza Guimarães Prota ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Water Resources ◽  
South America ◽  
Case Studies ◽  
Water Resources Management ◽  
Integrated Water Resources Management ◽  
Resources Management ◽  
Management Models

scholarly journals BRANCHED WATER RESOURCES MANAGEMENT MODELS

2021 ◽  
pp. 13-18
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Sea Water ◽  
Aral Sea ◽  
Distribution Models ◽  
Resources Management ◽  
Management Models ◽  
Resources Distribution ◽  
Water Problems

This paper describes the distribution of water resources in Uzbekistan, the elimination of water problems. Aral Sea water resources and water resources distribution models have been introduced in the country.

scholarly journals Outorgas Superficiais na Sub-Bacia Hidrográfica do Rio São Domingos, Pinheiros/ES / Grant Suface at Hydrographic Sub-Basin River São Domingos, Pinheiros/ES

2018 ◽  
Vol 28 (52) ◽  
pp. 125
Author(s):  
Jonatha Liprandi Jaques ◽  
André Luiz Nascentes Coelho
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Water Availability ◽  
Sustainable Management ◽  
The State ◽  
Federal Law ◽  
Espírito Santo ◽  
Resources Management ◽  
Methodological Tool ◽  
Espirito Santo

<p>O aumento da demanda pelos recursos hídricos tem colaborado para um cenário de conflitos decorrentes do uso da água em diferentes espaços geográficos e que vêm crescendo gradualmente no Estado do Espírito Santo. A Política Nacional e Estadual de Recursos Hídricos, instituída pela Lei Federal n° 9.433/1997 e a Lei Estadual do Espírito Santo 10.179/2014, constituiu a outorga nas condições de disponibilidades hídricas, pois fornece o limite máximo permissível, por prazo determinado para todos os usuários outorgados. Sendo assim, a presente pesquisa tem como objetivo avaliar em detalhes os processos de outorgas e as denúncias de irregularidades relativas ao uso de recursos hídricos na sub-bacia hidrográfica do rio São Domingos, localizada no município de Pinheiros – ES. Empregando como instrumento metodológico o uso de sistemas de informações geográficas (SIGs), com o propósito de identificar os processos de outorgas e as áreas de conflitos. Os resultados demonstraram que o uso de irrigação é predominante no número de outorgas. Consta-se a grande importância de um manejo sustentável para o uso de irrigação.</p><p><strong>Palavras-chave</strong>: Gestão de Recursos Hídricos; Instrumento de Gestão de Recursos Hídricos; Disponibilidade Hídrica; Conflitos de Usos de Recursos Hídricos.</p><p><strong>Abstract         </strong></p><p>The increase in demand for water resources has contributed to a scenario of conflicts arising from the use of water in different geographic spaces and that have been growing gradually in the State of Espírito Santo. The Hydric Resources National and State Politian, created by the Federal Law number 9.433/1997 and the State Law number 10.179/2014, constitute the grant under the conditions of water availability, as it provides the maximum permissible limit for a fixed term for all the users granted. Thus, the present research aims to evaluate in detail the granting processes and complaints of irregularities related to the use of water resources in  the São Domingos river basin, located in the municipality of Pinheiros – ES. Using as a methodological tool the use of geographic information systems (GIS), with the purpose of identifying the granting processes and the areas of conflicts. The results show that the predominant use of water is to irrigation as presented by number of grant. It is the importance of sustainable management for the use of irrigation is high.</p><p><strong>Keywords</strong>: Hydric Resources Management; Water Resources Management Instrument; Water Availability; Conflicts of Uses of Water Resources.</p>

scholarly journals Projection of land use to 2030 and its impacts on water availability in a brazilian sub-basin: A LCM and SWAT approach

2022 ◽  
Vol 61 (1) ◽  
pp. 66-87
Author(s):  
Adriana Paulo de Sousa Oliveira ◽  
Rafaela Ribeiro Gracelli ◽  
Arthur Amaral e Silva ◽  
Vitor Juste dos Santos ◽  
Jackeline De Siqueira Castro ◽  
...  
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Water Resources Management ◽  
Water Availability ◽  
Assessment Tool ◽  
Swat Model ◽  
Water Security ◽  
Climatic Conditions ◽  
Southeastern Brazil ◽  
Resources Management

Changes in land use and land cover (LULC) can result in significant changes in a hydrographic ba- sin flow regime. Future projections about LULC and its interference with water availability help to identify extreme events in advance and help propose appropriate management measures. Thus, this study aimed to make the LULC projection for the year 2030 for the Alto Rio Grande (ARG) sub- basin, located in Southeastern Brazil. This region was chosen because of its intense water resources use and for having recently faced water scarcity as result of prolonged droughts and inadequate water resources management. To identify the LULC trend for the year 2030, the Land Change Modeler (LCM) was used, the map obtained was inserted in the Soil and Water Assessment Tool (SWAT) model previously calibrated and validated for the region’ environmental and climatic conditions. The ARG sub-basin was affected by heavy rains in 2011, which resulted in changes in the landscape due to landslides. This particularity of the region contributed to the projection of LULC for the year 2030 to present an increase in forest and pastures to the agricultural areas detriment. When evaluating the impacts of these changes in water availability, it was observed that the SWAT model presented, for the same rainfall conditions, a reduction in peak streamflows of up to 59% and a reduction in the average monthly flow of up to 63% in 2030 in relation to the LULC observed in 2017. Thus, this study provides an important contribution by identifying a considerable reduction in water availability. These results will help to formulate strategies for water resources management and the adoption of measures to promote water security in the region.

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