Ecosystem Services Demand Management Under Climate Change Scenarios

2022 ◽  
pp. 1944-1964
Author(s):  
Abdelkrim Ben Salem ◽  
Souad Ben Salem ◽  
Mohammed Khebiza Yacoubi ◽  
Mohammed Messouli
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Water Demand ◽  
Water Resource Management ◽  
Demand Management ◽  
Climate Change Scenarios ◽  
Water Ecosystem ◽  
Storage Volume ◽  
Groundwater Reserves ◽  
Water Evaluation And Planning

Water ecosystem service is the most important element that supports Tafilalet agro-ecosystems. In this region, drought frequency is increasing, which complicate the management groundwater reserves. The ephemeral flows of the rivers force people to use groundwater to meet the population demand. Consequently, water resource management is of significant importance the sustainability of this area. Water evaluation and planning (WEAP) is useful management software used to evaluate and trace the trend of water demand. This model was applied in case of Ziz basin in order to simulate and analyze the situation of water under different scenarios. The results show an increasing of demand for water irrigation and with introducing modern irrigation scenario. However, a decreasing trend in reservoir storage volume and groundwater storage was projected in Tafilalet.

Ecosystem Services Demand Management Under Climate Change Scenarios

2019 ◽  
pp. 45-65
Author(s):  
Abdelkrim Ben Salem ◽  
Souad Ben Salem ◽  
Mohammed Khebiza Yacoubi ◽  
Mohammed Messouli
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Water Demand ◽  
Water Resource Management ◽  
Demand Management ◽  
Climate Change Scenarios ◽  
Water Ecosystem ◽  
Storage Volume ◽  
Groundwater Reserves ◽  
Water Evaluation And Planning

Water ecosystem service is the most important element that supports Tafilalet agro-ecosystems. In this region, drought frequency is increasing, which complicate the management groundwater reserves. The ephemeral flows of the rivers force people to use groundwater to meet the population demand. Consequently, water resource management is of significant importance the sustainability of this area. Water evaluation and planning (WEAP) is useful management software used to evaluate and trace the trend of water demand. This model was applied in case of Ziz basin in order to simulate and analyze the situation of water under different scenarios. The results show an increasing of demand for water irrigation and with introducing modern irrigation scenario. However, a decreasing trend in reservoir storage volume and groundwater storage was projected in Tafilalet.

scholarly journals Alterações Climáticas e Gestão da Água em Portugal (Climate Change and Water Management in Portugal)

2013 ◽  
Vol 5 (6) ◽  
pp. 1333
Author(s):  
Myriam Lopes ◽  
Ana Cristina Monteiro ◽  
Isabel Ribeiro ◽  
Elisa Sá ◽  
Helena Martins ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Water Resources ◽  
Water Resource Management ◽  
Demand Management ◽  
Climatic Variability ◽  
Climate Change Impacts ◽  
Climate Change Scenarios ◽  
Environmental Threats ◽  
Compensation Systems

As alterações climáticas (AC) constituem actualmente uma das maiores ameaças ambientais globais, com repercussões sociais e económicas para todo o planeta e humanidade. Os recursos hídricos, nomeadamente nas componentes de gestão da procura, do fornecimento e riscos infra-estruturais, são uma das áreas mais vulneráveis às AC. Este trabalho pretende ser um contributo para a gestão dos recursos hídricos em Portugal integrando a gestão do risco associado aos impactes das AC. Neste sentido, o trabalho inclui: i) a análise da variabilidade climática e da detecção das AC em Portugal; ii) a identificação do impacte de futuros cenários climáticos nos recursos hídricos e a identificação das maiores ameaças e fatores de risco; iii) a análise das estratégias de adaptação e sistemas de compensação existentes; iv) e a identificação de medidas adicionais a implementar em Portugal de modo a reduzir os riscos das AC na gestão da água. Palavras-chave: Alterações Climáticas, Recursos Hídricos, Risco, Gestão da água, Adaptação  Climate Change and Water Management in Portugal ABSTRACT Presently climate change (CC) is one of the greatest global environmental threats, with social and economic repercussions for the entire planet and humanity. Due to their vulnerability to CC, water resources are of major concern, particularly in the components of demand management, supply and infrastructure risks. This work intends to be a contribution for water resource management in Portugal, integrating risk management and climate change impacts. In this sense, this work includes: i) an analysis of climatic variability and climate change in Portugal; ii) an identification of the impacts of climate change scenarios in water resources and an identification of the major pressures and risk factors; iii) an analysis of the adaptation strategies and existing compensation systems; iv) and an identification of the additional measures to be implemented in Portugal, in order to reduce climate change impacts in water resources. Keywords: Climate change, water resources, risk, water management, adaptation

scholarly journals Impactos das mudanças climáticas na demanda hídrica e duração do ciclo do sorgo forrageiro e feijão-caupi no estado de Pernambuco

2015 ◽  
Vol 8 ◽  
pp. 542
Author(s):  
José Edson Florentino de Morais ◽  
Thieres George Freire da Silva ◽  
Marcela Lúcia Barbosa ◽  
Wellington Jairo da Silva Diniz ◽  
Carlos André Alves de Souza ◽  
...  
Keyword(s):  
Climate Change ◽  
Relative Humidity ◽  
Air Temperature ◽  
Water Demand ◽  
Stomatal Resistance ◽  
The State ◽  
Extreme Weather Events ◽  
Climate Change Scenarios ◽  
Area Index ◽  
Forage Sorghum

O aumento na ocorrência de eventos climáticos extremos nas últimas décadas é uma forte evidência das mudanças climáticas. Em regiões Semiáridas, onde a pressão de desertificação tem se intensificado, são esperadas diminuição da disponibilidade de água e maior ocorrência de períodos seca, e, consequentemente, efeitos na resposta fisiológica das plantas. Assim, objetivou-se analisar os impactos dos cenários de mudanças climáticas sobre a duração do ciclo fenológico e a demanda de água do sorgo forrageiro e do feijão-caupi cultivados no Estado de Pernambuco. Foram utilizados os valores mensais da normal climatológica brilho solar, temperatura do ar, umidade relativa do ar e velocidade do vento de dez municípios. Considerou-se um aumento de 1,8°C (Cenário B2) e 4,0°C (Cenário A1F1) na temperatura do ar e um decréscimo de 5,0% dos valores absolutos de umidade relativa do ar, além do aumento de 22% na resistência estomática e de 4% no índice de área foliar. Com base nessas informações foram gerados três cenários: situação atual e projeções futuras para B2 e A1F1. Os resultados revelaram uma redução média de 11% (B2) e 20% (A1F1), e de 10% (B2) e 17% (A1F1) na duração do ciclo, e de 4% (B2) e 8% (A1F1), e 2% (B2) e 5% (A1F1) na demanda de água acumulada para o sorgo forrageiro e feijão-caupi, respectivamente. Conclui-se que a magnitude das reduções da duração do ciclo e a demanda de água simulada para as culturas do sorgo forrageiro e do feijão-caupi variaram espaço-temporalmente no Estado de Pernambuco com os cenários de mudanças climáticas.ABSTRACT The increase in the occurrence of extreme weather events in recent decades is a strong evidence of climate change. In semiarid regions, where the pressure of desertification has intensified, are expected to decrease in the availability of water and higher occurrence of drought periods, and, consequently, effects on physiological response of plants. Thus, the objective of analyzing the impacts of climate change scenarios on the duration of phenological cycle and water demand of forage sorghum and cowpea, grown in the State of Pernambuco. Monthly values were used normal climatological solar brightness, air temperature, relative humidity and wind speed of ten municipalities. It was considered an increase of 1.8° C (B2 Scenario) and 4.0° C (A1F1 Scenario) on air temperature and a decrease of 5.0% of the absolute values of relative humidity, in addition to the 22% increase in stomatal resistance and 4% in leaf area index. Based on this information were generated three scenarios: current situation and future projections for B2, A1F1. The results revealed an average reduction of 11% (B2) and 20% (A1F1), and 10% (B2) and 17% (A1F1) for the duration of the cycle, and 4% (B2) and 8% (A1F1), and 2% (B2) and 5% (A1F1) in accumulated water demand for forage sorghum and cowpea, respectively. It is concluded that the magnitude of the reductions in the duration of the cycle and the simulated water demand for crops of forage sorghum and cowpea ranged space-temporarily in the State of Pernambuco with climate change scenarios.

scholarly journals Integrating Ecosystem Services Into Water Resource Management: An Indicator-Based Approach

2022 ◽  
Author(s):  
Kashif Shaad ◽  
Nicholas J. Souter ◽  
Derek Vollmer ◽  
Helen M. Regan ◽  
Maíra Ometto Bezerra
Keyword(s):  
Ecosystem Services ◽  
Service Delivery ◽  
Water Resource ◽  
Outdoor Recreation ◽  
Water Resource Management ◽  
Decision Makers ◽  
Data Sources ◽  
Water Ecosystem ◽  
Starting Point ◽  
Indicator Framework

AbstractNatural ecosystems are fundamental to local water cycles and the water ecosystem services that humans enjoy, such as water provision, outdoor recreation, and flood protection. However, integrating ecosystem services into water resources management requires that they be acknowledged, quantified, and communicated to decision-makers. We present an indicator framework that incorporates the supply of, and demand for, water ecosystem services. This provides an initial diagnostic for water resource managers and a mechanism for evaluating tradeoffs through future scenarios. Building on a risk assessment framework, we present a three-tiered indicator for measuring where demand exceeds the supply of services, addressing the scope (spatial extent), frequency, and amplitude for which objectives (service delivery) are not met. The Ecosystem Service Indicator is measured on a 0–100 scale, which encompasses none to total service delivery. We demonstrate the framework and its applicability to a variety of services and data sources (e.g., monitoring stations, statistical yearbooks, modeled datasets) from case studies in China and Southeast Asia. We evaluate the sensitivity of the indicator scores to varying levels data and three methods of calculation using a simulated test dataset. Our indicator framework is conceptually simple, robust, and flexible enough to offer a starting point for decision-makers and to accommodate the evolution and expansion of tools, models and data sources used to measure and evaluate the value of water ecosystem services.

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