scholarly journals A Conceptual Socio-Hydrogeological Model Applied to Sustainable Water Management. Case Study of the Valdivia River Basin, Southwestern Ecuador

2021 ◽  
Vol 16 (7) ◽  
pp. 1275-1285
Author(s):  
Paúl Carrión-Mero ◽  
Fernando Morante-Carballo ◽  
Valery Vargas-Ormaza ◽  
Boris Apolo-Masache ◽  
María Jaya-Montalvo
Keyword(s):  
Water Resources ◽  
Conceptual Model ◽  
River Basin ◽  
Swot Analysis ◽  
Management Strategies ◽  
Water System ◽  
Climatic Conditions ◽  
Hydrogeological Model ◽  
Aquifer System ◽  
Management Case Study

The scientific community has a growing interest in understanding the interaction of the human-water system in water resource models. In Santa Elena (Ecuador), Valdivia, San Pedro, Sinchal, Barcelona and Carrizal communities are located in a semi-arid area, making the water supply a critical problem for local communities. In addition to the climatic conditions of the sector, the main problem is the weak participation in the integral management of the groundwater resource by the stakeholders involved. Specifically, there is evidence of a lack of ancestral-technical knowledge in management strategies and the fact that the demand for water for agriculture, tourism, and their basic needs exceed the sustainable supply capacity. The present study assesses the natural and anthropic conditions of the middle and lower basin of the Valdivia river through a socio-hydrogeological conceptual model of the river-aquifer system to develop productive activities in an environment of sustainability. The study methodology consists of four phases: i) river basin data analysis, ii) hydrogeological studies, iii) application of the Participatory Action Research (PAR) and Strengths-Weaknesses-Opportunities-Threats (SWOT) analysis, and iv) conceptual model of the river-aquifer system. The results show that the socio-hydrogeological model of the Valdivia River basin has four systems: hydrogeological, ecological, economic, and social. In addition, the research detected problems present in the systems, such as droughts due to the influence of natural phenomena, aquifer overexploitation, lack of aquifer sustainability techniques, weak management and control of water resources, contamination of water sources and a lack of support from government agencies. The systems identified allow JAAPR-Valdivia to manage strategies to solve the problems detected in search of the sustainability of water resources.

scholarly journals Scenario-based strategy development for integrated water management

2013 ◽  
Vol 7 (3) ◽  
pp. 360-368
Keyword(s):  
Water Management ◽  
Water Resources ◽  
Water Resources Management ◽  
Methodological Approach ◽  
Management Strategies ◽  
Water System ◽  
Cost Recovery ◽  
Strategy Development ◽  
Strategy Formulation ◽  
Resources Management

This paper presents a step-by-step methodological approach for the development and evaluation of strategies for water deficient regions. The primary focus of the approach followed was the mitigation of water stress, while applying the principles of Integrated Water Resources Management and the EU Water Framework Directive. The participation of Stakeholders and end-users through consultations was a key point in the methodology followed. Stakeholders and actors were approached and their opinions on Water Management were collected and integrated into a list of measures and instruments suited and available for implementation, forming the basic assumptions governing the strategy formulation process for a region. Comprehensive scenarios were developed and examined for each of the selected options, through a prototype Decision Support System (WSM DSS), in order to obtain an initial ranking with regard to their suitability and performance. Then, the strategy formulation involved the integration of options on a regional basis in a set timeframe, based on their previous estimated performance and technical considerations with regard to their implementation. To achieve the set-out goals and principles two distinct strategies were evaluated and compared, one reflecting the traditional and current practices and policies, and one closely following the principles of Integrated Water Resources Management (IWRM). The developed Strategies were evaluated against each other and against the reference state of the water system, using a set of appropriate indicators for performance, cost, environmental and social impacts. Alternative pricing schemes were also explored in order to achieve a desired level of cost recovery for water services, and determine its effect on Strategy implementation. The developed strategies were re-examined and adjusted on the basis of the cost recovery structures, to account for the effects of price elasticities, and an overall evaluation was obtained enabling a final comparison. The methodology is illustrated through an exemplary application for the island of Paros, Greece. On the basis of the perceptions of different stakeholders, alternative water management strategies were developed and evaluated, and recommendations were made towards the mitigation of impacts caused by the high temporal water imbalance in the island.

scholarly journals Avaliação de contribuição do reservatório de Movene na bacia hidrográfica do rio Umbeluzi em Moçambique

2021 ◽  
Vol 14 (6) ◽  
pp. 3622
Author(s):  
Pedro Francisco Notisso ◽  
Klebber Teodomiro Martins Formiga
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Management Strategies ◽  
Industrial Sector ◽  
Planning System ◽  
Reference Scenario ◽  
Weap Model ◽  
Unmet Demand ◽  
Cultural Ecological ◽  
Growth Scenario

A gestão dos recursos hídricos na bacia hidrográfica do rio Umbeluzi é uma questão fundamental devido ao agravamento de escassez de água nos centros urbanos e na agricultura que pode pôr em causa os valores socioculturais, ecológicos e econômicos. Torna-se ainda mais importante o fato de ser uma bacia internacional, cuja demanda por água tem aumentando em função de expansão agrícola e crescimento populacional. O estudo avaliou a contribuição do novo reservatório de Movene e novas regras de prioridade na alocação de água superficial para atender às diferentes necessidades usando o modelo WaterEvaluation and Planning System – WEAP. O modelo foi validado no período 2005-2011 apresentando o NSE de 0,69 e Bias de 5,2% no volume do reservatório e 2005 com NSE de 6,7 e Bias de 6,0% na vazão. Os resultados mostram menor contribuição do reservatório de Movene, a demanda não atendida no abastecimento doméstico passou de 33,6 hm3 para 10,1 hm3 no cenário de Referência e de 57,3 hm3 para 19,9 hm3 no cenário Maior Crescimento em 2040. Considerando o mesmo ano, a demanda não atendida na agricultura caiu de 12,9 hm3 para 4,1 hm3 e de 22 hm3 para 10,3 hm3 nos cenários de Referência e de Maior Crescimento. No sector industrial apenas o cenário Maior Crescimento apresenta demanda não atendida, tendo saído de 7,4 hm3 para 0,3 hm3 em 2040. Esses resultados enfatizam a necessidade de implementação de estratégias de gestão de lado de demanda para minimizar os impactos de escassez de água.   Contribution assessment of the Movene reservoir in the Umbeluzi river basin in Mozambique A B S T R A C TThe management of water resources in the Umbeluzi River basin is an important issue due to the worsening of water scarcity in urban centres and in agriculture, which can jeopardize socio-cultural, ecological and economic values. Even more important is the fact that it is an international basin, whose demand for water has been increasing due to agricultural expansion and population growth. The study evaluated the contribution of the new Movene reservoir and new rules of priority in the allocation of surface water to meet different needs usingWater Evaluation And Planning (WEAP) model. WEAP modelwas validated from 2005 to 2011 with NSE of 0.69 and Bias of 5.2% in the volume of the reservoir and 2005 with an NSE of 6.7 and Bias of 6.0% in the flow. The results demonstrate a lower contribution of the Movene reservoir, the unmet demand in domestic supply went from 33.6 hm3to 10.1 hm3 in the Reference scenario and from 57.3 hm3to 19.9 hm3 in the Reference scenario Higher Growth scenario in 2040. Considering the same year, unmet demand in agriculture fell from 12.9 hm3to 4.1 hm3 and from 22 hm3to 10.3 hm3 in the Reference and Higher Growth scenarios. In the industrial sector, only the Highest Growth scenario has unmet demand, having gone from 7.4 hm3to 0.3 hm3 in 2040. These results emphasize the need to implement demand-side management strategies to minimize the impacts of water scarcity.Keywords: water resources, water demand, Umbeluziriver, WEAP model.

Investigation and evaluation of agricultural water use in a least developed country – a case study in Koshi River basin, Nepal

Water Policy ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 658-675
Author(s):  
Bo Kong ◽  
Wei Deng ◽  
Qing Wang ◽  
Huan Yu
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Water Availability ◽  
Management Strategies ◽  
Developed Country ◽  
Agricultural Water Use ◽  
Agricultural Use ◽  
Koshi River Basin ◽  
Farming Households ◽  
Basin Area

Abstract Water availability plays a key role in securing agricultural production and sustaining the income of farming households. Nepal is one of the countries most dependent on agriculture; more than 80% of the population works in agriculture, contributing to 35% of its total gross domestic product (GDP). As one of the longest rivers in Nepal, Koshi River is one of the main water supplies for agricultural activities. In recent years, due to the population growth and the climate change, there has been increasing stress on the water resources in Koshi River basin. Therefore, a comprehensive investigation of water availability in the basin area is required, prior to an effective strategy for water resources allocation and management. In this study, we provide a quantitative assessment of available water resources in Koshi River basin and highlight the trend of water availability for agricultural use. Moreover, we discuss the potential water-related risks for farming households in the basin area. The contribution of this study is to provide the basis for efficient water management strategies in Koshi River basin.

scholarly journals Effects of Water-Management Strategies on Water Resources in the Pawcatuck River Basin, Southwestern Rhode Island and Southeastern Connecticut

Circular ◽  
2009 ◽  
Author(s):  
Robert F. Breault ◽  
Phillip J. Zarriello ◽  
Gardner C. Bent ◽  
John P. Masterson ◽  
Gregory E. Granato ◽  
...  
Keyword(s):  
Water Management ◽  
Water Resources ◽  
Rhode Island ◽  
River Basin ◽  
Management Strategies

scholarly journals Water resources management in Sperchios River Basin, using SWOT analysis

2017 ◽  
Vol 47 (2) ◽  
pp. 779 ◽  
Author(s):  
N. Stathopoulos ◽  
D. Rozos ◽  
E. Vasileiou
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Water Resources Management ◽  
Environmental Planning ◽  
Swot Analysis ◽  
River Mouth ◽  
Environmental Parameters ◽  
Management Planning ◽  
Resources Management ◽  
Water Management Planning

SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis is a useful tool for sustainable development and decision making about environmental planning and water resources management. This analysis was applied in order to evaluate the water resources of the wider area of Sperchios River. Sperchios River basin, with an average altitude of approximately 810m, covers an area of 2116 km2. The river is recharged by many streams of permanent and periodic flow and discharges in Maliakos Gulf. The steep slopes, which are present within approximately 2/3 of the total length of the river course, form a rather mountainous topography (streamy, with crucial flooding peaks and very intense sediment yield). Only in the last downstream part of Sperchios course, the topography gradually changes into a lowland relief, with an extent at the river mouth of 1830 km2. At this part of Sperchios severe cases of flooding have been occasionally observed and reported. Regarding the SWOT applications on the wider area of Sperchios River, various data were processed (geological, meteorological, hydrological, hydrogeological, land use, socio-economic and environmental parameters) in order to suggest a water management planning in the area.

Sign in / Sign up

Export Citation Format

Share Document