scholarly journals An In-Depth Assessment of Water Resource Responses to Regional Development Policies Using Hydrological Variation Analysis and System Dynamics Modeling

2020 ◽  
Vol 12 (14) ◽  
pp. 5814
Author(s):  
Zhen-mei Liao ◽  
Yang-yang Li ◽  
Wen-shu Xiong ◽  
Xuan Wang ◽  
Dan Liu ◽  
...  
Keyword(s):  
Water Resources ◽  
System Dynamics ◽  
Regional Development ◽  
Water Resource ◽  
Variation Analysis ◽  
Development Policies ◽  
Internal Management ◽  
Hydrological Variation ◽  
The Impact ◽  
Sd Model

To maintain sustainability and availability of regional water resources, appropriate integrated water resource management (IWRM) should be based on an assessment of water resource background and responses to regional development and utilization policies. The study proposed an assessment method combining hydrological variation analysis with a system dynamics (SD) model to support IWRM in the Baiyangdian Region, Northern China. Integrated variation analysis and attributive analysis were used to identify variation time and causes of runoff. Then, based on the current water resource situation, an accessibility analysis examined the possibility of achieving a water resources supply and demand balance of social economic development and the ecological environment within individual internal management. Finally, an SD model simulated water resource response to development policies to predict future policy impacts. Results showed that 65.18% of the impact on runoff was from human activities. Sustainability goals were impossible through internal management, but with eco-migration policies and 1 × 108 m3 inter-basin transferred water, it could quickly be achieved, and water ecosystem function could also be recovered. Establishment of the Xiong’an New Area necessitated introduction of integrated cross-basin management to protect the Baiyangdian Region from degradation of its ecological function. Our study proposed a new method for comparation of internal and cross-basin IWRM.

scholarly journals A simulation impact evaluation of social-economic development on water resource use

2014 ◽  
Vol 4 (3) ◽  
pp. 137-153 ◽  
Author(s):  
Wenyi Wang ◽  
Weihua Zeng ◽  
Bo Yao ◽  
Jing Wei
Keyword(s):  
Economic Development ◽  
Water Resources ◽  
Water Resource ◽  
Water Resource Management ◽  
Social Economic ◽  
Water Shortage ◽  
Social Growth ◽  
Tongzhou District ◽  
Social Economic Development ◽  
The Impact

Due to the fast growth of the economy and population, the water scarcity issue has aroused widespread critical concern. In fact, reasonable structure, adaptive patterns and effective regulation of the economy, society and water resources can bring a harmonious future. Therefore, the study of how to balance economic social growth and water resources is of great importance. A model of the water resource, society and economy system of the Tongzhou district was designed by Stella. The model established here attempts to analyze future trends in social-economic development and the impact of the economic and population growth on water use in the Tongzhou district under three scenarios. The results reveal that the water shortage is very serious. If the current trends persist, the existing water supply will not be able to meet the water demand in the future. Tongzhou district's water shortage will be 162.50 million m3 in 2020 under the business-as-usual scenario. Therefore, it is necessary to develop unconventional water sources and improve the water-saving capacity of production and life to alleviate the water tensions. This research offers insight into larger questions regarding economic growth and water resource management in general.

Collaborative Modeling Using System Dynamics for Water Resource Management

2006 ◽  
Author(s):  
A. C. Sun ◽  
V. C. Tidwell ◽  
R. Thomas ◽  
J. R. Brainard ◽  
P. H. Kobos ◽  
...  
Keyword(s):  
Resource Management ◽  
Water Resources ◽  
Population Growth ◽  
System Dynamics ◽  
Water Resource ◽  
Water Resource Management ◽  
Historical Data ◽  
Hydrologic Cycle ◽  
Decision Makers ◽  
Collaborative Modeling

Water resource management for most Southwestern states requires collaborative solutions that cross regional, state, and federal judicial boundaries. As most of the region experiences drought-like conditions as well as population growth, there is a growing concern about sustainability of the water resource to meet industrial, agricultural, and residential demands. Technically, seeking a consensus path requires modeling of the hydrologic cycle within a prescribed region. Credible models must capture key interdependencies of various water resources, use historical data for calibration, and provide temporal/spatial resolutions that are aligned with the interests of the decision makers.

scholarly journals Analysis and Prediction of Sustainable Utilization of Water Resources in Chengde City Based on System Dynamics Model

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3534
Author(s):  
Bofan Wang ◽  
Yutong Tian ◽  
Xuanjin Li ◽  
Chunhui Li
Keyword(s):  
Water Quality ◽  
Economic Development ◽  
Water Resources ◽  
System Dynamics ◽  
Resource Utilization ◽  
Water Resource ◽  
Water Demand ◽  
Rapid Development ◽  
Sustainable Utilization ◽  
Water Resource Utilization

In addition to the social economy and the rapid development of industry and agriculture, water demand is increasing and poses challenges in the over-exploitation of water resources. This research establishes a model to assess the sustainable exploitation of water resources based on system dynamics theory and STELLA software, which solves the imbalanced allocation of industrial water, agricultural water and domestic water. The model is composed of two parts: the water quantity system (including economy, population, water availability and water demand) and the water quality system (composed of the aquatic environment), which is suitable for Chengde City with a water resource shortage. The proposed model is established by data of Chengde City from 2007 to 2016 and is verified by 2017 data. Furthermore, in order to compare the water quality and water utilization of Chengde City under different development scenarios up to 2025, the sensitivity analysis of each variable (e.g., population) is carried out in this model, and thereby the water resource utilization scenarios are acquired. Specifically, four scenarios are designed and denoted: Scenario 1: keeping the status quo unchanged, Scenario 2: slowing down economic development and devoting more energy to environmental protection, Scenario 3: only focusing more on economic development and Scenario 4: aiming at steady and rapid economic growth and an eco-friendly environment. The results shows that Scenarios 2 and 3 facilitate high-effective water resource utilization compared with the current development, Scenario 1. Scenario 4 fosters the balance of water resources supply–demand in the future and preserves the water quality. This study provides an inspiring method for realizing the sustainable utilization and optimizing allocation of water resources in Chengde City.

scholarly journals Research on the impact of environmental regulation on water resources utilization efficiency in China based on SYS-GMM model

2021 ◽  
Author(s):  
X. B. Wang ◽  
Z. L. Wang
Keyword(s):  
Water Resources ◽  
Environmental Regulation ◽  
Resource Utilization ◽  
Water Resource ◽  
Negative Correlation ◽  
Utilization Efficiency ◽  
Water Resource Utilization ◽  
The Impact ◽  
Resource Utilization Efficiency ◽  
Water Resources Utilization

Abstract The paper uses the super-efficiency DEA (Data Envelopment Analysis) model to measure the water resources utilization efficiency of 30 provinces in China, and then uses the system GMM (Generalized Method of Moments) model to analyze the impact of environmental regulations on China's regional water resources utilization efficiency. Conclusions as follows: (1) The overall water utilization efficiency is low, and the regions are very unbalanced. The more efficient areas are concentrated in the east, and the less efficient areas are in the west; (2)There is a ‘U’-shaped relationship between the intensity of environmental regulation and water resource utilization efficiency, that is, weaker environmental regulation intensity is not conducive to the improvement of water resource utilization efficiency, but when the intensity of environmental regulation crosses the ‘inflection point’, it can promote the improvement of water resources utilization efficiency; (3) The level of economic development has a very significant positive effect on water resources utilization efficiency, and the coefficient of scientific and technological progress is positive, but the impact of scientific and technological input on water resources utilization efficiency is limited and not significant; industrial structure and water resource utilization efficiency shows a negative correlation; water use structure and water resources efficiency show a negative correlation.

scholarly journals Modeling and analysis of collective management of water resources

2007 ◽  
Vol 11 (2) ◽  
pp. 711-720 ◽  
Author(s):  
A. Tilmant ◽  
P. van der Zaag ◽  
P. Fortemps
Keyword(s):  
Decision Making ◽  
Water Resources ◽  
Water Resource ◽  
Integrated Water Resources Management ◽  
Collective Choice ◽  
Decision Making Process ◽  
Water Resources Systems ◽  
Water Users ◽  
Operating Policies ◽  
The Impact

Abstract. Integrated Water Resources Management (IWRM) recommends, among other things, that the management of water resources systems be carried out at the lowest appropriate level in order to increase the transparency, acceptability and efficiency of the decision-making process. Empowering water users and stakeholders transforms the decision-making process by enlarging the number of point of views that must be considered as well as the set of rules through which decisions are taken. This paper investigates the impact of different group decision-making approaches on the operating policies of a water resource. To achieve this, the water resource allocation problem is formulated as an optimization problem which seeks to maximize the aggregated satisfaction of various water users corresponding to different approaches to collective choice, namely the utilitarian and the egalitarian ones. The optimal operating policies are then used in simulation and compared. The concepts are illustrated with a multipurpose reservoir in Chile. The analysis of simulation results reveals that if this reservoir were to be managed by its water users, both approaches to collective choice would yield significantly different operating policies. The paper concludes that the transfer of management to water users must be carefully implemented if a reasonable trade-off between equity and efficiency is to be achieved.

scholarly journals Analysis of the impact of intermittent distribution by modelling the network-filling process

2010 ◽  
Vol 13 (3) ◽  
pp. 358-373 ◽  
Author(s):  
M. De Marchis ◽  
C. M. Fontanazza ◽  
G. Freni ◽  
G. La Loggia ◽  
E. Napoli ◽  
...  
Keyword(s):  
Water Resources ◽  
Numerical Model ◽  
Water Resource ◽  
Water Scarcity ◽  
Filling Process ◽  
Hydraulic Behaviour ◽  
Service Period ◽  
Water Volumes ◽  
The Impact

In many countries, users acquire private tanks to reduce their vulnerability to water scarcity. In such conditions, water managers often apply intermittent distribution in order to reduce the water volumes supplied to the users. This practice modifies the hydraulic behaviour of the network and determines competition among users that need to collect enough water resource for their uses. Intermittent distribution is thus responsible for the inequality that can occur among users: those located in advantaged positions of the network are able to obtain water resources soon after the service period begins, while others have to wait much longer, after the network is full. This paper analyses the inequalities that take part when intermittent distribution is applied in water scarcity scenarios. Considering the complexity of the process, the analysis was performed by means of an unsteady numerical model. The model was applied to a real case study which provided interesting insights into the network filling process, helping to highlight the advantaged and disadvantaged areas of the network in different water scarcity scenarios.

scholarly journals Quantitative analysis on the environmental impact of large-scale water transfer project on water resource area in a changing environment

2012 ◽  
Vol 16 (8) ◽  
pp. 2685-2702 ◽  
Author(s):  
D. H. Yan ◽  
H. Wang ◽  
H. H. Li ◽  
G. Wang ◽  
T. L. Qin ◽  
...  
Keyword(s):  
Water Resources ◽  
Environmental Impact ◽  
Water Resource ◽  
Large Scale ◽  
Water Environment ◽  
Water Transfer ◽  
Long Distance ◽  
Changing Environment ◽  
The Impact ◽  
Natural Reserves

Abstract. The interbasin long-distance water transfer project is key support for the reasonable allocation of water resources in a large-scale area, which can optimize the spatio-temporal change of water resources to secure the amount of water available. Large-scale water transfer projects have a deep influence on ecosystems; besides, global climate change causes uncertainty and additive effect of the environmental impact of water transfer projects. Therefore, how to assess the ecological and environmental impact of megaprojects in both construction and operation phases has triggered a lot of attention. The water-output area of the western route of China's South-North Water Transfer Project was taken as the study area of the present article. According to relevant evaluation principles and on the basis of background analysis, we identified the influencing factors and established the diagnostic index system. The climate-hydrology-ecology coupled simulation model was used to simulate and predict ecological and environmental responses of the water resource area in a changing environment. The emphasis of impact evaluation was placed on the reservoir construction and operation scheduling, representative river corridors and wetlands, natural reserves and the water environment below the dam sites. In the end, an overall evaluation of the comprehensive influence of the project was conducted. The research results were as follows: the environmental impacts of the western route project in the water resource area were concentrated on two aspects: the permanent destruction of vegetation during the phase of dam construction and river impoundment, and the significant influence on the hydrological situation of natural river corridor after the implementation of water extraction. The impact on local climate, vegetation ecology, typical wetlands, natural reserves and the water environment of river basins below the dam sites was small.

scholarly journals Water and CSP—Linking CSP Water Demand Models and National Hydrology Data to Sustainably Manage CSP Development and Water Resources in Arid Regions

2020 ◽  
Vol 12 (8) ◽  
pp. 3373 ◽  
Author(s):  
D. Frank Duvenhage ◽  
Alan C. Brent ◽  
William H.L. Stafford ◽  
S. Grobbelaar
Keyword(s):  
Water Resources ◽  
Water Resource ◽  
Water Demand ◽  
Water Resource Management ◽  
Arid Regions ◽  
Net Generation ◽  
Parabolic Trough ◽  
Central Receiver ◽  
Demand Models ◽  
The Impact

A systematic approach to evaluate Concentrating Solar Power (CSP) plant fleet deployment and sustainable water resource use in arid regions is presented. An overview is given of previous work carried out. Once CSP development scenarios, suitable areas for development, and the water demand from CSP operations were evaluated, appropriate spatiotemporal CSP performance models were developed. The resulting consumptive patterns and the impact of variable resource availability on CSP plant operation are analysed. This evaluation considered the whole of South Africa, with focus on the areas identified as suitable for CSP, in order to study the impact on local water resources. It was found that the hydrological limitations imposed by variable water resources on CSP development are severe. The national annual theoretical net generation potential of wet-cooled Parabolic Trough decreased from 11,277 to 120 TWh, and that of wet-cooled Central Receiver decreased from 12,003 to 170 TWh. Dry cooled versions also experience severe limitations, but to a lesser extent—the national annual theoretical net generation potential of Parabolic Trough decreased from 11,038 to 512 TWh, and that of Central Receiver decreased from 11,824 to 566 TWh. Accordingly, policy guidelines are suggested for sustainable CSP development and water resource management within the context of current South African water use regulation.

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