Water and Society VI最新文献

{"title":"FURTHER DEVELOPMENT OF THE EBBSFLEET WATER MANAGEMENT SYSTEM DYNAMICS MODEL: ADJUSTING REPRESENTATION OF PROCESSES AND SYSTEM BOUNDARIES, INCENTIVISING STAKEHOLDER RE-ENGAGEMENT, AND EXPLORING POTENTIAL FOR UNIVERSITY TEACHING","authors":"V. Krivtsov, A. Pagano, S. Ahilan, E. O’Donnell, Irene Pluchinotta","doi":"10.2495/ws210021","DOIUrl":"https://doi.org/10.2495/ws210021","url":null,"abstract":"Sustainable urban water management must address interconnected social, technical and environmental issues. Modelling helps us understand these interconnections and provides a tool to analyse interactions between the urban water system and alternative management strategies. Models may be used to simulate not only the effects of climate, social and economic changes, but also the impacts of technological innovations, and different policy interventions. This paper reports an update of the Ebbsfleet Water Management System Dynamics Model (SDM) that explores sustainable urban water management. The model is open-source compiled using Vensim software, which is free for non-commercial use. This paper demonstrates that the current SDM and the modelling approach are open to adjustment, which is illustrated by introducing a link between water tariffs and environmental awareness. The increase in water tariffs leads not only to the obvious increase in water bills, but also to an increase in Environmental Awareness, and consequently, to increases in the use of water efficiency devices, grey water acceptability, and grey water reuse. A range of further modifications is suggested, including expanding representation of sustainable drainage systems (SuDS) to consider resultant improvements in stormwater quality as well as quantity. This would recognise the indirect benefits of improved stormwater quality on biodiversity in the River Ebbsfleet, which is the receiving watercourse. This study intends to encourage knowledge transfer, by facilitating and incentivising the use and further development of the SDM by stakeholders and a wider community of end-users, including practitioners, academics and the public. While SDM is particularly suited to analysis of indirect relations, benefits and trade-offs among system constituents, other approaches provide viable alternatives and we discuss the potential for re-implementing our findings in other interactive modelling software packages and programming languages. We also explore the scope for linking the adapted SDM to other models. Finally, we consider the utility of the Ebbsfleet SDM in teaching, learning and knowledge transfer. We conclude that students, practitioners and other stakeholders could not only enhance their understanding of urban water management complexity, but also gain valuable system modelling skills based on using the SDM to support kinaesthetic learning. Ultimately, society benefits when the level of knowledge and analytical thinking skills of its members are enhanced.","PeriodicalId":168484,"journal":{"name":"Water and Society VI","volume":"434 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124243886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ASSESSMENT OF PHYSICOCHEMICAL AND BACTERIOLOGICAL PARAMETERS IN THE SURFACE WATER OF THE JUAN DIAZ RIVER, PANAMA","authors":"Quiriatjaryn M. Ortega-Samaniego, I. Romero, M. Pachés, A. Dominici, Andres Fraíz","doi":"10.2495/ws210101","DOIUrl":"https://doi.org/10.2495/ws210101","url":null,"abstract":"Water pollution represents an obstacle to the development of countries since it affects not only the social-economic component but also biodiversity. Little is documented on the state of water quality of the rivers that flow through Panama City, so it is important to be able to determine the degree of contamination whether of natural or anthropogenic origin, in order to take actions that seek to remediate and increase the resilience of wetland ecosystems. For this study, a database of the Ministry of the Environment of Panama of water quality monitoring during the years 2002–2018 from the Juan Díaz River in the Republic of Panama was used. With these data, a space-temporal analysis was carried out to determine significant differences between the study sites using the Kruskal–Wallis Test and between seasons (dry and wet) by means of the Mann–Whitney U Test, and evaluation of the water quality index (WQI). The results indicate that there are significant differences between sites for the parameters of pH, T (°C), conductivity (mS/m), turbidity (NTU), DO (mg/L), BOD5 (mg/L), TS (mg/L), SS (mg/L), DS (mg/L), NO3 (mg/L), PO4 (mg/L), fecal coliforms (CFU/100 mL), T. coliforms (CFU/100 mL) and there are no significant differences between seasons except for the PO4 parameter. Analysing the WQI values, all the stations sampled are in the ranges from 17 (highly polluted) to 88 (acceptable).","PeriodicalId":168484,"journal":{"name":"Water and Society VI","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122072822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}