Simulation of water resource allocation for sustainable urban development: An integrated optimization approach
TL;DR: Wang et al. as discussed by the authors proposed a system dynamics model consisting of social, economic, water demand and water supply sectors to investigate the complex interactions within the water system in Huainan City.
About: This article is published in Journal of Cleaner Production.The article was published on 2020-11-10. It has received 35 citations till now. The article focuses on the topics: Water resources & Water supply.
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01 Jun 2021
TL;DR: An integrated system dynamics modelling framework was proposed, exploring opportunities for integration of system dynamics with other modelling tools based on the strengths and limitations ofSystem dynamics modelling; this framework can be used to enhance the simulation and optimisation for future water resource management and planning in the context of climate change and socio-economic development.
Abstract: This paper systematically reviewed system dynamics applications in water resource management with respect to spatial factors, research aims, modelling sub-systems and model calibration and validation methods. Decision-making context, consideration of climate change, scenarios or management measures were also examined. Results showed that the critical conceptual system dynamics model development phases are often neglected with only 40% of reviewed articles developing causal loop diagrams, and only three studies identifying system archetypes. Most reviewed publications applied scenario-based approaches (82%) to evaluate the effectiveness of management measures, whilst a minority of studies (1.8%) considered water management optimisation. Structure behaviour and behaviour-pattern tests (52%) were mostly applied to evaluate the validity of the model structure and accuracy of the behaviour's pattern, though model validation was not conducted in 12% of the studies. Finally, an integrated system dynamics modelling framework was proposed, exploring opportunities for integration of system dynamics with other modelling tools based on the strengths and limitations of system dynamics modelling; this framework can be used to enhance the simulation and optimisation for future water resource management and planning in the context of climate change and socio-economic development.
34 citations
TL;DR: In this article, the main benefits and barriers to the dissemination of rainwater harvesting systems are summarized based on an extensive literature review, and the main factors influencing the acceptance and dissemination of RWHS are economic (indicating the importance of financial incentives), lack of technical knowledge about the systems and a better perception of the real water availability in areas served by public water networks.
27 citations
TL;DR: In this paper , the main benefits and barriers to the dissemination of rainwater harvesting systems are summarized based on an extensive literature review, and the main factors influencing the acceptance and dissemination of RWHS are economic (indicating the importance of financial incentives), lack of technical knowledge about the systems and a better perception of real water availability in areas served by public water networks.
27 citations
15 citations
Cites background from "Simulation of water resource alloca..."
...With the rapid development of the socioeconomy, the shortage of water resources and the increase in water demand have become more prominent (Shukla and Gedam 2019; Wei et al. 2020), which has seriously restricted the sustainable development of the economy and society (Jia et al. 2014)....
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TL;DR: In this article, the authors evaluated the efficiency of NH4+ removal from stormwater by coal-based granular activated carbon (CB-GAC), a novel approach, the response surface methodology (RSM), back-propagation artificial neural network (BP-ANN) coupled with genetic algorithm (GA), has been applied in this research.
Abstract: As a key parameter in the adsorption process, removal rate is not available under most operating conditions due to the time and cost of experimental testing. To address this issue, evaluation of the efficiency of NH4+ removal from stormwater by coal-based granular activated carbon (CB-GAC), a novel approach, the response surface methodology (RSM), back-propagation artificial neural network (BP-ANN) coupled with genetic algorithm (GA), has been applied in this research. The sorption process was modeled based on Box-Behnben design (BBD) RSM method for independent variables: Contact time, initial concentration, temperature, and pH; suggesting a quadratic polynomial model with p-value pH (24.68%) > temperature (22.93%) > initial concentration (21.16%). The process parameters were optimized via RSM optimization tools and GA. The results of validation experiments showed that the optimization results of GA-ANN are more accurate than BBD-RSM, with contact time = 899.41 min, initial concentration = 17.35 mg/L, temperature = 15 °C, pH = 6.98, NH4+ removal rate = 63.74%, and relative error = 0.87%. Furthermore, the CB-GAC has been characterized by Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET). The isotherm and kinetic studies of the adsorption process illustrated that adsorption of NH4+ onto CB-GAC corresponded Langmuir isotherm and pseudo-second-order kinetic models. The calculated maximum adsorption capacity was 0.2821 mg/g.
13 citations
References
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University of Michigan1, College of William & Mary2, McGill University3, Western Washington University4, Arizona State University5, Imperial College London6, University of Minnesota7, Swedish University of Agricultural Sciences8, Stanford University9, Centre national de la recherche scientifique10, United States Geological Survey11, University of British Columbia12, Columbia University13
TL;DR: It is argued that human actions are dismantling the Earth’s ecosystems, eliminating genes, species and biological traits at an alarming rate, and the question of how such loss of biological diversity will alter the functioning of ecosystems and their ability to provide society with the goods and services needed to prosper is asked.
Abstract: The most unique feature of Earth is the existence of life, and the most extraordinary feature of life is its diversity. Approximately 9 million types of plants, animals, protists and fungi inhabit the Earth. So, too, do 7 billion people. Two decades ago, at the first Earth Summit, the vast majority of the world's nations declared that human actions were dismantling the Earth's ecosystems, eliminating genes, species and biological traits at an alarming rate. This observation led to the question of how such loss of biological diversity will alter the functioning of ecosystems and their ability to provide society with the goods and services needed to prosper.
5,244 citations
TL;DR: In this paper, the utility of several efficiency criteria is investigated in three examples using a simple observed streamflow hydrograph, and the selection and use of specific efficiency criteria and interpretation of the results can be a challenge for even the most experienced hydrologist since each criterion may place different emphasis on different types of simulated and observed behaviours.
Abstract: . The evaluation of hydrologic model behaviour and performance is commonly made and reported through comparisons of simulated and observed variables. Frequently, comparisons are made between simulated and measured streamflow at the catchment outlet. In distributed hydrological modelling approaches, additional comparisons of simulated and observed measurements for multi-response validation may be integrated into the evaluation procedure to assess overall modelling performance. In both approaches, single and multi-response, efficiency criteria are commonly used by hydrologists to provide an objective assessment of the "closeness" of the simulated behaviour to the observed measurements. While there are a few efficiency criteria such as the Nash-Sutcliffe efficiency, coefficient of determination, and index of agreement that are frequently used in hydrologic modeling studies and reported in the literature, there are a large number of other efficiency criteria to choose from. The selection and use of specific efficiency criteria and the interpretation of the results can be a challenge for even the most experienced hydrologist since each criterion may place different emphasis on different types of simulated and observed behaviours. In this paper, the utility of several efficiency criteria is investigated in three examples using a simple observed streamflow hydrograph.
2,375 citations
Book•
12 Dec 1995
TL;DR: In this paper, the authors present an EMERGY Evaluation Procedure and Evaluation Procedure for Energy Hierarchy and Energy Hierarchical Energy Hierology, which is based on EMERGE Algebra.
Abstract: Introduction: EMERGY and Real Wealth. EMERGY and the Energy Hierarchy. Earth EMERGY. Environmental Production and Economic Use. EMERGY Evaluation Procedure. Empower Through Networks: EMERGY Algebra. Evaluating Environmental Resources. Net EMERGY of Fuels and Electricity. Evaluating Alternatives for Development. EMERGY of States and Nations. Evaluating International Exchange. Evaluating Information and Human Service. EMERGY Over Time. Comparison of Methods. Policy Perspectives. An Emergy Glossary. Appendices. References. Index.
2,014 citations
University of Lisbon1, University of Paris-Sud2, Netherlands Environmental Assessment Agency3, United Nations Environment Programme4, University of Évora5, Spanish National Research Council6, National Autonomous University of Mexico7, Stockholm University8, University of East Anglia9, University of Maryland, College Park10, Hawaii Pacific University11, University of British Columbia12, Joint Global Change Research Institute13, Imperial College London14, The Nature Conservancy15, Virginia Tech College of Natural Resources and Environment16
TL;DR: Scenarios consistently indicate that biodiversity will continue to decline over the 21st century, however, the range of projected changes is much broader than most studies suggest, partly because there are major opportunities to intervene through better policies, but also because of large uncertainties in projections.
Abstract: Quantitative scenarios are coming of age as a tool for evaluating the impact of future socioeconomic development pathways on biodiversity and ecosystem services. We analyze global terrestrial, freshwater, and marine biodiversity scenarios using a range of measures including extinctions, changes in species abundance, habitat loss, and distribution shifts, as well as comparing model projections to observations. Scenarios consistently indicate that biodiversity will continue to decline over the 21st century. However, the range of projected changes is much broader than most studies suggest, partly because there are major opportunities to intervene through better policies, but also because of large uncertainties in projections.
1,725 citations
TL;DR: It is argued that system dynamics combined with stakeholder involvement provides an appropriate methodology to address dynamically complex problems in water resources management effectively.
Abstract: In this paper we discuss the use of system dynamics as a methodology with which to address dynamically complex problems in water resources management. Problems in regional planning and river basin management, urban water management, flooding and irrigation exhibit important short-term and long-term effects, and are often contentious issues with high potential for conflict. We argue that system dynamics combined with stakeholder involvement provides an appropriate methodology to address these issues effectively. We trace the theoretical and practical evolution of system dynamics in these areas over the past 50 years. From this review of the literature and selected case studies we identify and discuss a number of best practices and common pitfalls in applications of system dynamics simulation.
398 citations