scholarly journals Water efficiency evaluation of a regional water scheme – Zhengzhou, China, using a water ecological–economic system (WEES) and based on emergy theory

2016 ◽  
Vol 17 (3) ◽  
pp. 674-687 ◽  
Author(s):  
Zening Wu ◽  
Xi Guo ◽  
Xinjian Guan ◽  
Cuimei Lv ◽  
Huiliang Wang
Keyword(s):  
Water Resources ◽  
Economic System ◽  
Economic Efficiency ◽  
Rapid Development ◽  
Theory Model ◽  
Efficiency Evaluation ◽  
Water Efficiency ◽  
Ecological Economic ◽  
Emergy Theory ◽  
Regional Water

With the rapid development of society and the economy, the shortage of water resources and the deterioration of the water environment has resulted in restriction of the development of society and the protection of ecology and the environment. Consequently improving water efficiency is the key to realizing the sustainable utilization of water resources, and water efficiency evaluation is an important part of water resources management. Emergy theory aims to convert different dimensions of material and energy into solar energy, which can be analyzed and compared uniformly. Therefore, a new approach to assessing the economic efficiency of water resources, based on the water contribution to economic production, is evaluated using an emergy theory model. Water efficiency and system sustainability are explained by variables and emergy indicators in a regional water ecological–economic system (WEES) for Zhengzhou, China. The general status and economic efficiency of water resources in Zhengzhou are identified from the WEES. The average water contribution quantity and water contribution rate were 50.99 × 1020 sej and 6.13% during 2000–2011, respectively. Results also show that industrial water efficiency is higher than that of agriculture. This quantification method will help decision-makers to adjust water prices and provide better water services.

scholarly journals Grey Relational Entropy Calculation and Fractional Prediction of Water and Economy in the Beijing-Tianjin-Hebei Region

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Lifeng Wu ◽  
Xiaorui Guo ◽  
Yan Chen
Keyword(s):  
Water Resources ◽  
Economic System ◽  
Rapid Development ◽  
Entropy Method ◽  
Economic Systems ◽  
Water Resources System ◽  
Grey Correlation ◽  
Industrial Enterprises ◽  
Correlation Entropy ◽  
Grey Relational

The implementation of the Beijing-Tianjin-Hebei coordinated development strategy promotes the rapid development of the regional economy, but the consequent water shortage has become a major concern. How to optimize the allocation of water resources, promote the cooperation of water resources among various water-using departments, and maximize the water efficiency of the limited water resources in the region has become the main issue of research. Thus, this paper mainly studies the entropy value and the entropy difference of the grey relational entropy between water resources and economic systems. First, use the grey correlation entropy method to calculate the existing data to explore the relationship between the two systems, then use the FGM(1, 1) model to predict the grey correlation entropy value of Beijing-Tianjin-Hebei in 2020–2024, and finally, calculate the entropy difference of the grey relation entropy for the region from 2015 to 2024. The results show the following: (i) The connection between the water resources system and the economic system in the Beijing-Tianjin-Hebei region is poor, the entropy value between the two will continue to decrease from 2015 to 2024, and the degree of coordination has shown a decreasing trend. (ii) The entropy change value between the water resources system and the economic system in the Beijing-Tianjin-Hebei region reflects a gradual and orderly change trend. The research results can provide reasonable suggestions for improving the correlation between water resources and economic systems for government departments, local residents, and industrial enterprises in the Beijing-Tianjin-Hebei region, ultimately realizing the sustainable development of water resources and economic systems.

scholarly journals Effective economic growth under conditions of regional water management dependence

2021 ◽  
pp. 22-43
Author(s):  
Svitlana Fedulova ◽  
Volodymyr Dubnytskyi ◽  
Nataliia Naumenko ◽  
Vitalina Komirna ◽  
Iryna Melnikova ◽  
...  
Keyword(s):  
Water Management ◽  
Economic Growth ◽  
Water Resources ◽  
Water Supply ◽  
Regional Development ◽  
Economic System ◽  
Economic Systems ◽  
The Impact ◽  
Regional Water

Purpose. The purpose of the article is an identifying the impact of regional water management dependence on economic growth in the region. Methodology / approach. The subject of the study is theoretical and methodological basics of a new scientific paradigm for regulation the development of the regional socio-economic systems under the conditions of limited water resources. The study used traditional and special research methods, including: historical and logical – to analyze the evolution of regional socio-economic systems under conditions of limited water resources; abstractions and analogies – to reveal the essence of water-efficient regional socio-economic systems in the modern processes of regionalization and globalization; theoretical generalization, analysis and synthesis – to specify the categorical apparatus; statistical analysis to assess the level of needs of regional socio-economic systems in water resources and create an index of regional water management dependence; method of correlation analysis (biserial correlation, using a point biserial Pearson’s correlation coefficient). Results. The main idea of the paper is to study the issues of development of regional socio-economic systems under the conditions of limited water resources. Considering this, the paper is aimed at studying the impact of regional water management dependence on economic growth in the region. The tasks for development of regional socio-economic systems on the basis of water efficiency are defined, as well as the concept “water-efficient regional socio-economic system” is defined. The study presents a hypothesis about the need to change the paradigm of regulation of regional development on the basis of water use efficiency and regional water management dependence. In order to trade effectively with the main crops, it is necessary to determine whether there are sufficient water supplies in a given country and its regions. For this purpose, the authors proposes to use own indicator, such as the index of regional water management dependence. Thе characteristic of water management dependence is given, from regions where only up to half of the water supply of the territory is used, and to regions where more than 100 % of the water supply of the territory is used. The research has updated that the expansion of knowledge and understanding of the specifics of the water sector can solve significant problems. It is proved that the economic growth of the Ukrainian economy due to the agricultural sector has its limits and is limited by the water management dependence of the territories, ie the limitation of certain territories of the regions of Ukraine in terms of water resources. The next effective economic growth is possible only through the implementation of water-efficient technologies and intensification of water-efficient activities in the region. Originality / scientific novelty. The study for the first time defines the concept of water-efficient regional socio-economic system, so it is a socio-economic system that provides for the restoration of water resources in the region, reducing the water intensity of gross regional product (GRP) and approaching European norms and proposes the classification of regions according to the index of regional water management dependence on the basis of its threshold values. A scientific and methodological approach to assessing the level of needs of regional socio-economic systems in water resources has been improved, based on the application of the index of regional water management dependence, which is proposed to calculate the ratio of total fresh water use in the region to the volume of available river runoff in the region (parts of the water potential). The classification of regional socio-economic systems according to the level of water supply has been improved, which is based on the definition of threshold values of the index of regional water management dependence. The methodological bases for assessing the impact of the spatial economy on regional development under conditions of limited water resources have been improved, which differ in substantiating the dependence of the level of development of regions on the available water potential of the territory. Practical value / implications. The results of the study allow a more comprehensive approach to the study of the problem of using water resources in Ukraine in the context of their limitation. The results of the study showed that the economic complex in most regions is water-intensive and unbalanced, as well as does not provide restoration of water resources by environmental parameters and requires the implementation of infrastructure schemes for redistribution of water resources between regions for economic activity. The results are recommended for consideration by local governments and regional administration for the development and implementation of “Regional programs for the development of water management in the region” and for the development of “Strategies for regional development until 2025–2027”.

scholarly journals Utilization Characteristics and Sustainability Evaluation of Water Resources in China

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1142 ◽  
Author(s):  
Jingxin Sun ◽  
Xiang Yu ◽  
Qishan Xiao ◽  
Jianfeng Song ◽  
Shikun Sun
Keyword(s):  
Sustainable Development ◽  
Water Resources ◽  
Water Use ◽  
Time Perspective ◽  
High Efficiency ◽  
Rapid Development ◽  
River Pollution ◽  
The Sustainable Development ◽  
Regional Water ◽  
Water Resources Utilization

Water is an important factor of production contributing to all sectors and regions in the world. With the rapid development of the economy and the increase of population, the water crisis is becoming more and more serious, and will become an important obstacle to the sustainable development of society. It is particularly important to evaluate the sustainability of water resources utilization. Based on the analysis of the regional water resources utilization characteristics, this paper takes 31 provinces in mainland China as the research object and comprehensively evaluates the regional water resources’ sustainability from the aspects of hydrology, environment, economy and technology. The results show: From the regional perspective, the regionalization of China’s various indexes is obvious, the hydrological and environmental indexes in western regions are significantly higher than that in eastern regions; while the economic index in eastern regions is higher than that in western regions. From the time perspective, from 2010 to 2015, the sustainable development of water resources in seven provinces showed an increasing trend. Zhejiang changed from “Good” to “Excellent” and Hubei, Hunan, Guangxi, Sichuan, Guizhou and Xinjiang all had slight growth. There are six provinces which show varying degrees of decline, of which Liaoning changes from “Excellent” to “Medium”, Beijing, Hebei, Jilin, Guangdong, Hainan also had a slight decline; the rest of the provinces did not change, Qinghai and Chongqing have been maintained as “Excellent”. Taken together, the western regions of China have significant advantages in terms of quantity and quality of water resources, but its water use efficiency is low. However, the economic development in the eastern regions is rapid with high efficiency of water use, but there are some serious problems such as water resources insufficiency and river pollution.

Emergy Analysis on Ecological Economic System in Liuzhou

2010 ◽  
Vol 171-172 ◽  
pp. 437-440
Author(s):  
Hong Yuan Fu ◽  
Guan Wen Cheng ◽  
Guo Dan Lu ◽  
Wen Yuan Wei ◽  
Hao Wang ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Economic System ◽  
Carrying Capacity ◽  
Yield Ratio ◽  
Emergy Analysis ◽  
Environmental Loading ◽  
Ecological Economic ◽  
Emergy Theory ◽  
Loading Ratio ◽  
Relationship Of

The objective of this study was using methods of emergy theory to calculate the flow of emergy on eco-economic system in Liuzhou from 2004 to 2008, in order to analyse emergy relationship of ecological economic system including society, economy and ecological subsystems. The results showed the emergy self-sufficient ratio, the net emergy yield ratio decreased year by year, but the environmental loading ratio and population carrying capacity increased in recent years, and Emergy index for sustainable development decreased rapidly. This study could put forward countermeasures for sustainable development of Liuzhou ecological economic system.

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