scholarly journals An ecological interval two-stage fuzzy shadow price model for environmental flow allocation in the Shaying River Basin

2021 ◽  
Author(s):  
Shuo Yan ◽  
Zhuowei Wang ◽  
Leixiang Wu ◽  
Wei Huang
Keyword(s):  
Water Use ◽  
Shadow Price ◽  
Water Structure ◽  
Water Shortage ◽  
Environmental Water ◽  
Environmental Flow ◽  
Economic Benefits ◽  
Added Value ◽  
Price Model ◽  
Two Stage

Abstract In recent times, social water use has overstepped into the domain of ecological water use, disrupting environmental flow and, thus, destroying the ecological environment. This research aims to coordinate social and natural water use to bring about optimal economic benefits, while ensuring environmental flow requirements. In this study, an interval two-stage fuzzy shadow price model (ITS-SPM) has been developed, which combines two-stage programming (TSP) and system of water value to optimize environmental flow. The ITS-SPM is mainly characterized as system benefits constituted by expected water resource benefits and water shortage penalty. This model has removed the uncertainties of economic data and environmental water demand (expressed fuzzy and interval). It has been found that adjusting the social water structure can effectively solve the problem of insufficient ecological flow. The ITS-SPM can make the adjustment of social water use more reasonable, which will produce benefits, unlike the current agricultural water reduction policy. Under the premise of guaranteeing optimal economic benefits, the added value of environmental water use in different scenarios is (social water structure adjustment) as follows: in 2020, it was expected that Shaying River water would increase by at least 13.49%; in 2025, it is expected to increase by at least 33.35%; in 2030, the increase will be by at least 57.54%; and in 2035, it will be by at least 77.50%.

scholarly journals Application of an Interval Two-Stage Robust (ITSR) Optimization Model for Optimization of Water Resource Distribution in the Yinma River Basin, Jilin Province, China

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2910
Author(s):  
Wei He ◽  
Luze Yang ◽  
Minghao Li ◽  
Chong Meng ◽  
Yu Li
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Water Use ◽  
Water Resource ◽  
Low Income ◽  
Optimization Model ◽  
Resource Distribution ◽  
Water Shortage ◽  
Economic Benefits ◽  
Two Stage

The present study is based on the application of an interval two-stage stochastic programming (ITSP) model in the Yinma River Basin. A robust method based on interval two-stage robust (ITSR) optimization is introduced to construct an optimization model of water resource distribution in order to solve the problems of water shortage in low-income and high-income areas caused by the unreasonable distribution of water resources. The model would help in reducing the system risk in the Yinma River Basin caused by an excessive pursuit of economic benefits. The model simulations show that the amount of water required for the water resource distribution is significantly reduced after balancing the risks and the water resource distribution of the water use departments is reduced by up to 20%. In addition, the situation of water scarcity of various water use departments shows a decreasing trend. There is no scarcity of water use in Panshi, Yongji, Shuangyang and Jiutai areas. The water shortage of water use departments in other areas is reduced by up to 97%. The allocation of reused water to ecological and environmental departments with higher water demand further solved the water shortage problem in low-income departments in the interval-two-stage planning model. In this study, after the introduction of the robust optimization method in the Yinma River Basin, the stability of the water resources distribution system is significantly improved. In addition, the risk of water use system in the interval-two-stage stochastic model can be avoided.

scholarly journals Bayesian networks for environmental flow decision-making and an application in the Yellow River estuary, China

2014 ◽  
Vol 18 (5) ◽  
pp. 1641-1651 ◽  
Author(s):  
A. P. Pang ◽  
T. Sun
Keyword(s):  
Decision Making ◽  
Bayesian Networks ◽  
Water Use ◽  
Yellow River ◽  
River Estuary ◽  
Water Shortage ◽  
Environmental Flow ◽  
Water Diversion ◽  
The Yellow River ◽  
Production Loss

Abstract. We proposed an approach for environmental flow decision-making based on Bayesian networks considering seasonal water use conflicts between agriculture and ecosystems. Three steps were included in the approach: water shortage assessment after environmental flow allocation using a production-loss model considering temporal variations of river flows; trade-off analysis of water use outcomes by Bayesian networks; and environmental flow decision-making based on a risk assessment under different management strategies. An agricultural water shortage model and a production-loss model were integrated after satisfying environmental flows with temporal variability. The case study in the Yellow River estuary indicated that the average difference of acceptable economic loss for winter wheat irrigation stakeholders was 10% between water saving measures and water diversion projects. The combination of water diversion projects and water-saving measures would allow 4.1% more river inflow to be allocated to ecological needs in normal years without further economic losses in agriculture.

scholarly journals Bayesian networks for environmental flow decision making and an application in the Yellow River estuary, China

2013 ◽  
Vol 10 (12) ◽  
pp. 14873-14903 ◽  
Author(s):  
A. P. Pang ◽  
T. Sun
Keyword(s):  
Decision Making ◽  
Bayesian Networks ◽  
Water Use ◽  
Yellow River ◽  
River Estuary ◽  
Water Shortage ◽  
Environmental Flow ◽  
Water Diversion ◽  
The Yellow River ◽  
Production Loss

Abstract. We proposed an approach for environmental flow decision making based on Bayesian networks considering seasonal water use conflicts between agriculture and ecosystems. Three steps were included in the approach: water shortage assessment after environmental flow allocation using a production-loss model considering temporal variations of river flows; trade-off analysis of water use outcomes by Bayesian networks; and environmental flow decision making based on a risk assessment under different management strategies. An agricultural water shortage model and a production-loss model were integrated after satisfying environmental flows with temporal variability. The case study in the Yellow River estuary indicated that the average difference of acceptable economic loss for winter wheat irrigation stakeholders was 10% between water saving measures and water diversion projects. The combination of water diversion projects and water-saving measures would allow 4.1% more river inflow to be allocated to ecological needs in normal years without further economic losses in agriculture.

Pressure management in Waitakere City, New Zealand - a case study

2003 ◽  
Vol 3 (1-2) ◽  
pp. 135-141 ◽  
Author(s):  
Z. Pilipovic ◽  
R. Taylor
Keyword(s):  
Water Use ◽  
Water Loss ◽  
Water Cycle ◽  
Demand Management ◽  
Cost Benefit ◽  
Water Shortage ◽  
Design Tool ◽  
Network Computer ◽  
Water Pipeline ◽  
The City

In 1996, as part of Waitakere Council’s Water Cycle Strategy, a pressure standardisation programme to permanently lower the average supply pressure citywide was implemented with the aim of reducing water loss and water use. The experience gained during the 1994/95 Auckland water shortage had confirmed that there was considerable scope to reduce pressures in many areas. Since 1996 water pressures have been reduced in over 60% of the reticulated area of the city, with the average pressure reduced from 710 kPa to 540 kPa. As a result of this programme water loss from the network has been reduced, there has been a reduction in the frequency of mains breaks and it is likely that the life of water pipeline assets has been extended. Furthermore both pressure and demand management initiatives have reduced per capita water use in the city by more than 10%. A network computer model was used as a design tool to check the network under various pressure regimes and cost benefit analyses were carried out for various design scenarios. Fire sprinkler systems were checked as part of the design process. Minimum service standards were not reduced and in some cases pressures were actually increased. This paper covers the various aspects of the design, the implementation and the results of the pressure standardisation programme.

Study on Efficiency of Rainfall and Flood Water Resources Utilization in Coastal Area

2013 ◽  
Vol 409-410 ◽  
pp. 79-82 ◽  
Author(s):  
Ying Qin Chen ◽  
Xian Feng Huang
Keyword(s):  
Water Resources ◽  
Water Use Efficiency ◽  
Water Use ◽  
Environmental Water ◽  
Utilization Efficiency ◽  
Agricultural Water ◽  
Domestic Water ◽  
Flood Water ◽  
Use Efficiency ◽  
Water Resources Utilization

Due to the rich resources of urban rainwater and transit flood in coastal areas, rational utilization of rainfall and flood water resources can improve the sustainable utilization, to better serve the coastal development. In this paper, the available quantity of water rainfall and flood water resources in coastal are distributed to domestic water, industrial water, agricultural water and ecologic environmental water. Water price method is used to calculate domestic water efficiency. Energy synthesis is used to calculate the industrial and agricultural water-use efficiency. Ecologic environmental water-use efficiency-sharing coefficient method is used to calculate the ecologic environmental water-use efficiency. Finally, taking Lianyungang City, a Jiangsu coastal city as an example to analyze the rainfall and flood water resources utilization efficiency. The results provide reference to the research for Chinas plain area rainfall and flood water resources efficiency analysis.

scholarly journals How downstream sub-basins depend on upstream inflows to avoid scarcity: typology and global analysis of transboundary rivers

2018 ◽  
Vol 22 (5) ◽  
pp. 2795-2809 ◽  
Author(s):  
Hafsa Ahmed Munia ◽  
Joseph H. A. Guillaume ◽  
Naho Mirumachi ◽  
Yoshihide Wada ◽  
Matti Kummu
Keyword(s):  
Water Stress ◽  
Water Use ◽  
Water Availability ◽  
Water Scarcity ◽  
Management Practices ◽  
Global Analysis ◽  
Water Shortage ◽  
River Basins ◽  
Analytical Framework ◽  
Available Water

Abstract. Countries sharing river basins are often dependent upon water originating outside their boundaries; meaning that without that upstream water, water scarcity may occur with flow-on implications for water use and management. We develop a formalisation of this concept drawing on ideas about the transition between regimes from resilience literature, using water stress and water shortage as indicators of water scarcity. In our analytical framework, dependency occurs if water from upstream is needed to avoid scarcity. This can be diagnosed by comparing different types of water availability on which a sub-basin relies, in particular local runoff and upstream inflows. At the same time, possible upstream water withdrawals reduce available water downstream, influencing the latter water availability. By developing a framework of scarcity and dependency, we contribute to the understanding of transitions between system regimes. We apply our analytical framework to global transboundary river basins at the scale of sub-basin areas (SBAs). Our results show that 1175 million people live under water stress (42 % of the total transboundary population). Surprisingly, the majority (1150 million) of these currently suffer from stress only due to their own excessive water use and possible water from upstream does not have impact on the stress status – i.e. they are not yet dependent on upstream water to avoid stress – but could still impact on the intensity of the stress. At the same time, 386 million people (14 %) live in SBAs that can avoid stress owing to available water from upstream and have thus upstream dependency. In the case of water shortage, 306 million people (11 %) live in SBAs dependent on upstream water to avoid possible shortage. The identification of transitions between system regimes sheds light on how SBAs may be affected in the future, potentially contributing to further refined analysis of inter- and intrabasin hydro-political power relations and strategic planning of management practices in transboundary basins.

An ageing well collaboration: opportunity or wicked problem

2019 ◽  
Vol 40 (1) ◽  
pp. 18-27
Author(s):  
Lois Marjorie Hazelton ◽  
Laurence Murray Gillin ◽  
Fiona Kerr ◽  
Alison Kitson ◽  
Noel Lindsay
Keyword(s):  
Policy Development ◽  
Independent Living ◽  
Integrated Approach ◽  
Business Case ◽  
Economic Benefits ◽  
Added Value ◽  
Wicked Problem ◽  
Wealth Creation ◽  
Content Type ◽  
Collaborative Structure

Purpose Within the “wicked” concept of ageing, this paper aims to primarily model an integrated approach to identifying and evaluating opportunities that deliver innovative outcomes in Ageing Well Practice, Health and Economic Policy and Research Actions using a collaborative and entrepreneurial mindset. The strategic focus is on a “Boomer” (user)-driven and facilitated Network – that brings together health professionals, research specialists, technologists, ageing well providers, “encore” career specialists, life-style providers, community groups, wealth creation specialists and industry innovators to streamline the progression of identified concepts to valued users and markets and enhance the economy. Design/methodology/approach Using the unit of analysis for innovation, i.e. the “added-value” as perceived by the user and not simply a product or a technology, the identified “opportunity-outcome” will embed a new service concept or intervention, which embraces and promotes ageing well, independent living or resident-centred care in the community and delivers direct and indirect economic benefits. Findings The authors model a point of differentiation in facilitating existing ageing well policies in the community, through a focus on an integrated and multi-dimensional collaborative framework that can deliver user value and contributes to community and economic benefits. Research limitations/implications Generalising results without a commercial business case from this single strategic viewpoint requires caution. The positive outcomes from this innovation collaborative concept can be used to guide further policy development and business investment in ageing well needs. Practical implications Such an integrated innovation collaborative structure provides the capacity to identify ageing well opportunities, to contract enterprises, both SMEs’ and larger companies, for development of the opportunities into user-valued outcomes, to network venture resources and deliver these outcomes to a sustainable market of ageing well citizens. Social implications The Ageing Well Innovation collaborative framework identifies practical ways to integrate new concepts of ageing participation to be realised by the increasing number of “Boomers”. It provides a self-managing process for linking individuals, public and private parties to maximise information and ideas flow, and engagement of the skilled resources in the Boomer group. Originality/value The innovation collaborative structure proposed is not simply novel but is a targeted focus on entrepreneurship and innovation applied strategically to the needs of ageing boomers and community needs. The added-value is in the demonstrated enhancement to effective innovation outcomes in community ageing and the economy.

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