Evaluation of water quality and protection strategies of water resources in arid–semiarid climates: a case study in the Yuxi River Valley of Northern Shaanxi Province, China

2008 ◽  
Vol 57 (8) ◽  
pp. 1933-1938 ◽  
Author(s):  
Li Yunfeng ◽  
Song Guohui ◽  
Wu Yaoguo ◽  
Wan Weifeng ◽  
Zhang Maosheng ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
River Valley ◽  
Shaanxi Province ◽  
Protection Strategies ◽  
Northern Shaanxi

scholarly journals Evaluation of the balneability conditions of the urubuí corredeira, in the municipality of presidente figueiredo – amazonas

2020 ◽  
pp. 35566-35571
Keyword(s):  
Water Quality ◽  
High Risk ◽  
Water Resources ◽  
Direct Observation ◽  
Environmental Conservation ◽  
Recreational Activity ◽  
Primary Contact ◽  
Recreation Use ◽  
Recreational Use

According to the environmental company of the state of São Paulo, bathing is associated with the use of water for the practice of recreational activity through primary contact, being understood as direct and long contact with water, with high risk of ingesting certain. For this purpose, it is essential to evaluate water quality, following some criteria, which are based on microorganisms indicating fecal contamination, established through monitoring and confrontation with pre-established standards. Thus, the general objective of this study is to evaluate the watering conditions of the vulture rapids, to define the quality and parameters of water for recreation use, in order to contribute to the environmental conservation and supervision of water resources. This research is a case study, conducted through bibliographic surveys, site visits, direct observation. The results obtained by laboratory analysis in the periods between September and October 2019, where all dates of points P1 and P2 presented concentrations below 250 CFU / 100mL. According to CONAMA Resolution No. 274/2000, the results indicate that the bathing conditions for recreational use fall into the excellent category.

scholarly journals Sea Water Intrusion in a Coastal Aquifer: A Case Study for the Area Between Seeb and Suwaiq, Sultanate of Oman

2006 ◽  
Vol 11 ◽  
pp. 55 ◽  
Author(s):  
Ahmed Al Barwani ◽  
Tariq Helmi
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Coastal Plain ◽  
Coastal Aquifer ◽  
Sea Water ◽  
Water Users ◽  
Groundwater Occurrence ◽  
Over Exploitation ◽  
Water Quality And Quantity

The Batinah Coastal plain, located between the Hajar mountains and the sea, from Muscat to the UAE border, is a favorable region for groundwater occurrence in Oman and the main source of fresh water in this coastal area. The coastal parts of the Batinah plain, particularly Barka and Suwaiq, have suffered from groundwater deterioration over the past 20 years. This paper reviews the monitoring activities of groundwater electrical conductivity in the Batinah coastal plain between Seeb and Suwaiq over the period 1984 to 2005, an area of approximately 394 km2. GIS and Auto-Cad techniques were applied to illustrate different salinity zones as the wells coordinates and their field EC were digitized on maps with contours. Zones of salinity ranges are identified and their areas were computed and compared to the total catchment area of each wadi. All samples were collected from the same upper gravel layer, ranging in depth 20-100 meters. There has been a substantial deterioration in water quality as indicated by a 7% reduction in areas of water suitable for agriculture use (2.000 – 6.000 μS/cm), reflecting a loss of 2,714 hectares of irrigated land. Also, a saline interface is reported 12 km inland at Wadi al Taww, Barka area, an indication of aquifer over-exploitation. It is therefore critical that monitoring of water quality and quantity is continued. It is recommended to improve implementation of the standard water resources management solutions to coastal aquifer saline contamination. Cooperation of different organizations and water users is essential to conserve these precious water resources. 

scholarly journals Integrated RAGA-PP water demand forecast model (case study: Shaanxi Province, China)

2021 ◽  
Author(s):  
Jun Yang ◽  
Yanning Mao ◽  
Yuqi Ma ◽  
Wei Wu ◽  
Yuan Bai
Keyword(s):  
Water Resources ◽  
Water Demand ◽  
Rapid Development ◽  
Shaanxi Province ◽  
Demand Forecast ◽  
Continuous Growth ◽  
Sustainable Solutions ◽  
Demand Fluctuations ◽  
The Impact

Abstract The demand for water resources in Shaanxi Province increases greatly due to the continuous growth of its population and the rapid development of the social economy. Water demand forecasting is a significant issue in the designing, maintaining and operating of a reliable and economical water supply system. An explicit mathematical method was presented in this study, based on the indicators of industrial output value, such as the gross output value of agriculture, forestry, animal husbandry and fishery. The impact of total retail sales and year trends in the domestic or industrial water demands, can accurately forecast the water demand fluctuations for a municipality. Adopt RAGA-PP optimal selection model through a grouping method of data handling for water demand management to test for the case study Shaanxi, China. Results showed that the prediction effect of multivariate logarithmic model accuracy can reach 99.50%, and it is estimated that the demand for water resources in Shaanxi would exceed 10 billion m3 by 2030. The average relative error of the water consumption from 2015 to 2017 is 3.05% for the model of multiple linear and 0.50% for the model of multivariate logarithm model. Our framework can assist in developing sustainable solutions.

scholarly journals Eficácia da Cobrança pelo Uso de Recursos Hídricos condicionada ao Índice de Qualidade da Água: Estudo de Caso, Minas Gerais, Brasil

2021 ◽  
Vol 14 (1) ◽  
pp. 266
Author(s):  
Cíntia Maria Ribeiro Vilarinho ◽  
Marcelo Gonzaga Muller ◽  
Aline Souza Cavalcante ◽  
Mariana Morales Leite Costa ◽  
José Augusto Costa Gonçalves
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Water Scarcity ◽  
Water Quality Index ◽  
Quality Index ◽  
Economic Value ◽  
Minas Gerais ◽  
Water Value ◽  
Minas Gerais State

Em vários países o preço da água pode e melhorou quantitativa e qualitativamente a distribuição deste recurso. O preço adequado e bem utilizado levou a uma melhor sustentabilidade e conservação da água por meio de regulamentos prescritivos, incluindo até o racionamento de água. O uso de preços para gerenciar a demanda de água é mais econômico do que a implementação de programas de conservação sem preços. No Brasil, através de instrumentos legais, é prevista a cobrança pelo uso dos recursos hídricos, sinalizando pela necessidade do reconhecimento do valor econômico da água associado ao seu uso, ao desenvolvimento sustentável mediante aos desafios da escassez hídrica futura. Para que a cobrança pelo uso da água não se torne um mero mecanismo de arrecadação pública, e devido também, a inexistência de estudos que investiguem e expressem de forma clara os objetivos e finalidades da cobrança em Minas Gerais, esta pesquisa se fez necessária. Desta forma, este trabalho objetivou investigar e avaliar a cobrança pelo uso da água e sua eficácia na melhoria do Índice de Qualidade da Água (IQA) estabelecida pelo órgão gestor. Em Minas Gerais, de 91,67% das Unidades de Planejamento e Gestão de Recursos Hídricos (UPGRHs), onde existe a cobrança instituída, não se constatou uma tendência na melhoria do IQA. Apenas 36,36% das bacias estaduais que cobram pelo uso da água melhoraram os níveis de IQA, enquanto 63,63% pioraram ou não tiveram variação significativa.  Charging Effectiveness for the Use of Water Resources conditioned to the Water Quality Index: Case Study, Minas Gerais, Brazil A B S T R A C TIn several countries the price of water can and has improved quantitatively and qualitatively the distribution of the resource. The appropriate and well-used price has led to better sustainability and conservation of water through prescriptive regulations, including even water rationing. Using prices to manage water demand is more economical than implementing price-free conservation programs. In Brazil, through legal instruments, charging for the use of water resources is foreseen, signaling mainly the need to recognize the economic value of water associated with its use, sustainable development through the challenges of future water scarcity. So that, charging for the use of water does not become a mere mechanism for public collection, and also due to the lack of studies that investigate and clearly express the objectives and purposes of charging in Minas Gerais state, this research was necessary. Thus, this study aimed to investigate and evaluate the charge for water use and its effectiveness in improving the Water Quality Index (WQI) established by the managing body. In Minas Gerais, of 91.67% of the Water Resources Planning and Management Units (UPGRHs), where the collection is in place, there was no trend in improving the IQA. Only 36.36% of the state basins that charge for the use of water improved the levels of IQA, while 63.63% worsened or had no significant variation.Keywords: Water scarcity. Water availability. Water Value.

Catchment Residents-Based SWOT Analysis of a Reservoir Ecosystem for Sustainable Water Management: A Case Study From the Region of Alentejo, Portugal

2010 ◽  
Vol 45 (3) ◽  
pp. 295-306
Author(s):  
Nuno-Gonçalo Matias
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Water Resources ◽  
Swot Analysis ◽  
Multiple Correspondence Analysis ◽  
Public Perceptions ◽  
The European Union ◽  
Reservoir Water ◽  
Sustainable Water Management

Abstract The European Union Water Framework Directive (WFD, 2000/60/EC) makes public participation a requirement in managing water resources and maintaining water quality in a watershed. Whilst participatory approaches to sustainable water management are supported by a growing body of research, actively involving people affected by water resources is far from straightforward. This paper investigates the use of the Strengths-Weaknesses-Opportunities-Threats (SWOT) analysis framework as a consultation tool to support catchment populations participation in water resources management by a case study developed in a reservoir ecosystem. The application of a multiple correspondence analysis helped identify underlying structures of respondents SWOT stated issues and their associations with socio-demographic characteristics and type of reservoir ecosystem uses. In particular, five clusters of responses were suggested by this analysis, focusing on: the use and importance of the reservoir ecosystem for agriculture, existing qualities/amenities at the study area for recreation, socioeconomic issues, concerns about littering and litter management of the area, and issues about reservoir water quality and management. Overall, the issues raised information about public perceptions and understandings of the reservoir ecosystem, which may enable decision makers and water managers to perform fair and sustainable management of water resources.

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