Water replenishment for ecological flow with an improved water resources allocation model

2018 ◽  
Vol 643 ◽  
pp. 1152-1165 ◽  
Author(s):  
Ziqi Yan ◽  
Zuhao Zhou ◽  
Xuefeng Sang ◽  
Hao Wang
Keyword(s):  
Water Resources ◽  
Resources Allocation ◽  
Water Resources Allocation ◽  
Allocation Model ◽  
Ecological Flow

A study of multi-objective dynamic water resources allocation modeling of Huai River

2015 ◽  
Vol 15 (4) ◽  
pp. 817-824 ◽  
Author(s):  
Jing Peng ◽  
Ximin Yuan ◽  
Lan Qi ◽  
Qiliang Li
Keyword(s):  
Water Resources ◽  
Dynamic Balance ◽  
Supply And Demand ◽  
Low Flow ◽  
Resources Allocation ◽  
Time Interval ◽  
Water Resources Allocation ◽  
Allocation Model ◽  
Multi Objective ◽  
Huai River

Water resources supply and demand has become a serious problem. Water resources allocation is usually a multi-objective problem, and has been of concern for many researchers. In the north of China, the lack of water resources in the Huai River Basin has handicapped the development of the economy, especially badly in the low-flow period. So it is necessary to study water resources allocation in this area. In this paper, a multi-objective dynamic water resources allocation model has been developed. The developed model took the overall satisfaction of water users in a time interval as the objective function, applied an improved simplex method to solve the calculation, considered the overall users' satisfaction variation with time, and followed the principle that the variation of the system satisfaction within adjacent periods of time must be minimal. The established model was then applied to the Huai River, for the present situation (2010), short-term (2020) and long-term (2030) planning timeframes. From the calculation results, the overall satisfaction in late May and mid September in 2030 was 0.65 and 0.70. After using the model allocation optimization, the overall satisfaction was improved, increasing to 0.78 and 0.79, respectively, thus achieving the dynamic balance optimization of water resources allocation in time and space. This model can provide useful decision support in water resources allocation, when it is used to alleviate water shortages occurring in the low-flow period.

scholarly journals Optimal Land And Water Allocation Model For The Maximization of Net Agricultural Return In Drought Prone Regions

2021 ◽  
Author(s):  
Mulu Sewinet Kerebih ◽  
Ashok Kumar Keshari
Keyword(s):  
Water Resources ◽  
Rainfall Variability ◽  
Resources Allocation ◽  
Command Area ◽  
Cropping Pattern ◽  
Water Resources Allocation ◽  
Allocation Model ◽  
Cropping Patterns ◽  
The Government ◽  
Optimal Cropping

Abstract In this study, the land and water resources allocation model was developed to determine optimal cropping patterns and water resources allocations at different rainfall probability exceedance levels (PEs) to ensure maximum agricultural return in the Hormat-Golina valley irrigation command area, Ethiopia. To account the uncertainty of rainfall variability, the monthly dependable rainfall was estimated at three levels of reliability (20, 50 and 80% PEs) which are representing wet, normal and dry seasons based on regional experience. The irrigation water demand which was used as an input to the optimization model was estimated at each level of reliability by using CROPWAT model. The net annual returns of optimal cropping patterns were estimated as 181, 179 and 175 million Ethiopia Birr at 20 %, 50 % and 80 % PEs, respectively. The result of the optimal cropping pattern indicates that, the net annual return of the command area was increased to 45.75%, 45.84% and 47.01% than the Government targeted at 20%, 50% and 80% PEs, respectively. The findings reveal that the optimal land and water resources allocation model is very useful to the planners and decision makers to maximize the agricultural return particularly in areas where land and water resources are limited.

An Integrated Model for Water Resources Allocation in the River Basin Based on Different Allocation Principles

2012 ◽  
Vol 212-213 ◽  
pp. 113-116
Author(s):  
Chun Xiao ◽  
Dong Guo Shao ◽  
Feng Shun Yang
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Water Use ◽  
High Efficiency ◽  
Integrated Model ◽  
Resources Allocation ◽  
Water Resources Allocation ◽  
Allocation Model ◽  
Existing Problems

Aiming at the existing problems in the models of water resources allocation, the concept of friendly allocation of water resources was put forward, and based on the principles of basic water use guarantee, preference of status in quo, fairness and high efficiency, the friendly subfunctions were established and an integrated model of water resources allocation was proposed with maximizing friendly function of water resources allocation. As a case study, the proposed allocation model was applied in Fuhuan River Basin in China, and the results indicated that the model was rational and effective, which provides a new method for water resources allocation in the river basin.

scholarly journals Optimal Multi-Sectoral Water Resources Allocation Based on Economic Evaluation Considering the Environmental Flow Requirements: A Case Study of Yellow River Basin

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2253
Author(s):  
Cheng-Yao Zhang ◽  
Taikan Oki
Keyword(s):  
Economic Evaluation ◽  
Water Resources ◽  
Water Allocation ◽  
Yellow River ◽  
Yellow River Basin ◽  
Environmental Flow ◽  
Resources Allocation ◽  
Water Resources Allocation ◽  
Allocation Model ◽  
Water Allocation Model

Competitions and disputes between various human water sectors and environmental flow of the river are exacerbated due to the rapid growth of the economy in Yellow River basin as well as the limited supply of available water resources in recent decades. It is necessary to implement rational and effective management and allocation to alleviate the pressure of water shortage. In order to promote economic development and maintain the ecological balance of the river, both the water allocation to the river environmental system and different human needs should be of concern when making the allocation polices. This study developed a water allocation model based on Nash–Harsanyi bargaining game theory for optimal water resources allocation among agricultural, industrial, domestic, public, and urban ecological water (watering for urban green space) sectors while ensuring the environmental flow requirements of lower reaches. A comprehensive economic evaluation framework is built to assess the economic benefits of different water uses that were taken as the basis of water allocation model. The annual environmental base flow is 7.50 billion m3 in the lower reaches of Yellow River. Moreover, the optimal annual allocations for agricultural, industrial, domestic, public, and urban ecological water use sectors are estimated as 33.7, 6.42, 3.96, 1.75 and 2.68 billion m3, respectively.

scholarly journals Weighted Bankruptcy Rules and Transboundary Water Resources Allocation

2015 ◽  
Vol 29 (7) ◽  
pp. 2303-2321 ◽  
Author(s):  
Hojjat Mianabadi ◽  
Erik Mostert ◽  
Saket Pande ◽  
Nick van de Giesen
Keyword(s):  
Water Resources ◽  
Resources Allocation ◽  
Water Resources Allocation ◽  
Transboundary Water ◽  
Transboundary Water Resources

Application of Complex Adaptive System Theory to Water Resources Allocation in Dianchi Basin

2012 ◽  
Vol 212-213 ◽  
pp. 536-542
Author(s):  
Qiong Su ◽  
Shi Hua He
Keyword(s):  
System Theory ◽  
Water Resources ◽  
Adaptive System ◽  
Complex Adaptive System ◽  
Resources Allocation ◽  
Water Resources Allocation ◽  
Evolutionary Mechanisms ◽  
Reservoir Water ◽  
Allocation System ◽  
Complex Adaptive

Based on complex adaptive system theory, the characteristics of water resources allocation system of river basin are analyzed. Evolutionary mechanisms and process of complex adaptive water resources allocation system in Dianchi basin are researched, and also characteristics of "learning". A complex adaptive system model of water-resource allocation is established during analyzing the influence factors and the reaction rules of water consumer agents and water provider agents. And based on this model, water resources in Dianchi basin is allocated only under Dianchi water provider and Zhangjiu river Yunlong reservoir water provider by using the platform of matlab. Finally, corresponding calculation results and conclusions are concluded.

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