Water Ecological Civilization Construction Research Articles

New urbanization promoting the construction of water ecological civilization:Mechanism of influence and spatial effects

New urbanization promoting the construction of water ecological civilization:Mechanism of influence and spatial effects

Research on the problems and strategies of sponge city construction in China

With the continuous progress of China's urbanization, problems such as rainwater runoff pollution, flood disaster and water resource shortage have become increasingly prominent. Sponge city is a good way to solve urban waterlogging and improve the water ecological environment. This paper first describes the water resources issues encountered by Chinese cities, and then it explains the significance of sponge city building, in order to further apply the idea of water ecological civilization construction and promote the construction of sponge city. China's creation of sponge cities is still in its early stages when compared to Western nations. In this paper, the effectiveness of the construction of Jiaozuo sponge city is examined together with the research state of sponge city construction in China. Finally, this paper discusses some problems in the process of sponge city construction and puts forward some concrete suggestions. It is expected to play a reference role in promoting the development of sponge city and improving the construction of sponge city in China.

The impact of Water Ecological Civilization City Pilot on urban green innovation: the case of China.

As an essential part of ecological civilization, water ecological civilization has significant influence on the green and sustainable development of cities. Under the background of China's Water Ecological Civilization City Pilot (WECCP), based on data from 275 cities in China from 2007 to 2019 by using the difference-in-differences (DID) model, we empirically analyzed the influence of the WECCP establishment on urban green innovation and explored the impact mechanism in depth using a mediating effect model, which aimed to verify whether the "Porter hypothesis" holds true in China. The result indicated that the WECCP had made a remarkable contribution to enhancing urban green innovation in the pilot cities. Further research found that the input mechanism played an important mediating role. In addition, the heterogeneity test indicated that cities in the central region, at low administrative levels, and in the first batch of pilots gained more from the policy establishment. This paper has theoretical implications for understanding the derived innovation benefits of the environmental policy, practical implications for identifying new drivers of urban innovation, and provides related experience for the country to further promote and expand water ecological civilization construction and useful policy inspiration for other developing countries to formulate ecological and environmental policies.

A Study on the Risk Assessment of Water Conservancy Scenic Spot PPP Projects

The water conservancy scenic spot is an important part of China’s water ecological civilization construction and is an important way to transform “clear water and green mountains” into “mountains of gold and silver”. The current development of the water conservancy scenic spot is limited by the conditions of capital, management, and technology. The PPP model, as a means of introducing these elements, is an effective way to realize the marketization, characterization, and high-quality development of water conservancy scenic spots. Due to the particularity and complexity of water conservancy scenic spots, the PPP model, and their combination, the risks in water conservancy scenic spot PPP projects are more complicated. Identification and assessment, as well as response, are necessary ways to reduce project risks. In this paper, the risk evaluation index system and the DEMATEL-ANP-FUZZY risk evaluation model of the water conservancy scenic spot PPP project are put forward and, then, the key risk factors, causal relationship between the factors, and risk level of the project are obtained in combination with case analysis. The results show that risks in construction and operation, as well as political and economic risks, are the key risk factors in the water conservancy scenic spot PPP project, and the natural, economic and political risk factors are the main causes of project risk. Risks in construction and operation, as well as organizational and social risks, are the main affected factors. Further analysis shows that the political and economic factors are the key points to focus on when attempting to reduce the project risk, and suggestions are provided, such as improving the legal and regulatory framework, establishing a reasonable risk-sharing and social capital withdrawal mechanism, unblocking social capital participation channels, and strengthening financial support. This could provide a reference for the risk management of water conservancy scenic spot PPP projects.

Comprehensive Evaluation of the Level of Water Ecological Civilization Construction in the Min River Basin, China

Water Ecological Civilization Construction (WECC) is critical for promoting long-term resource, economic, and social development. The Min River is the longest in Fujian Province, China, and is known as the “golden canal” for shipping. In this study, data from cities around the Min River were used to build an evaluation index system for WECC in the Min River, incorporating the Pressure–State–Response model, and the matter element extension model was used to examine the WECC level in the Min River Basin. The results indicate that notable progress has been made for WECC in the Min River Basin, despite evident regional variation. The upper parts of the Min River have seen the most development; however, the downstream regions have been mainly stable and retained a high WECC level. Changes in industrial structure and government actions substantially affect the degree of WECC. This study can act as a reference for river basin WECC.

Temporal and Spatial Difference Analysis and Impact Factors of Water Ecological Civilization Level: Evidence from Jiangxi Province, China

The water environment quality is not high, the spatial and temporal distribution of water resources is uneven, and the water quality-induced water is in shortage in the world. Strengthening the construction of water ecological civilization is one of the important measures to solve these problems. We took China’s Jiangxi Province and its prefecture-level cities as the research object, the water ecological civilization level was measured from the two dimensions of time and space by principal component analysis, and based on the panel data of prefecture-level cities from 2011 to 2020, the panel data model was used to empirically analyze the impact factors of water ecological civilization. The results show that: (1) The level of water ecological civilization in Jiangxi Province shows a fluctuating upward trend, in which the level of water ecological civilization first increased, then decreased, and then increased from 2013 to 2020. (2) Water ecology is the key to affecting water ecological civilization, and cities with abundant natural endowments of water resources have higher scores for water ecological civilization. (3) There are significant differences in the level of water ecological civilization in different cities in Jiangxi Province; the level of water ecological civilization in southern Jiangxi and central Jiangxi is generally higher than that in northern Jiangxi; among the 11 prefecture level cities, Ji’an, Fuzhou, Jiujiang, Yichun, Ganzhou, and Shangrao have a high level of water ecological civilization. (4) Industrial structure, educational investment, and government governance level have significantly improved the level of water ecological civilization. Environmental pollution is not conducive to improving the level of water ecological civilization. There is an inverted U curve between the level of urbanization and the level of water ecological civilization. Accordingly, all prefecture-level cities in Jiangxi Province need to implement new development concepts and innovation-driven strategy, make up for shortcomings, and strengthen weak points according to their own natural endowments of water resources, such as optimizing the industrial structure, increasing investment in education, improving the level of government governance, and strengthening the connotation construction of urbanization, so as to promote the construction of water ecological civilization in Jiangxi Province. The research results also provide a reference for other countries similar to Jiangxi Province to solve the problem of water pollution, alleviate the pollution-induced water shortage, and improve the water ecological environment in the process of economic development.

Research on performance evaluation and obstacle diagnosis for urban water ecological civilization construction based on GFAHP-cloud-FSE model: the case of Shizuishan, China

Research on performance evaluation and obstacle diagnosis for urban water ecological civilization construction based on GFAHP-cloud-FSE model: the case of Shizuishan, China

Spatiotemporal evolution of ecological vulnerability in the Yellow River Basin under ecological restoration initiatives

• New integrated ecological vulnerability evaluation system for arid and semi-arid regions is developed. • The vulnerability level is largely mitigated in the YRB during 2001–2019. • Ecological vulnerability has obvious geographical heterogeneity, Very heavy vulnerability dominates in the upstream. • The variations of ecological vulnerability are closely related to ecological restoration policies. Drought, water shortage, and anthropogenic disturbance bring about serious ecological issues in the Yellow River Basin. In recent decades, the “Grain-for-Green” project, wind-sand control, and water ecological civilization construction are major events affecting the ecological vulnerability in the Yellow River Basin. Based on the “exposure-sensitivity-adaptability” framework and earth observation data, this study proposes an ecological vulnerability evaluation index system that reflects the impacts of natural and human stressors and assesses the ecological vulnerability in the Yellow River Basin during different policy periods. The results show that the overall ecological vulnerability level shows a decreasing trend from 2001 to 2019 in the Yellow River Basin, despite a slight increase in 2015 due to the impact of the dry climate. Medium ecological vulnerability level prevails in the Yellow River Basin. The vulnerability levels have obvious geographical spatial variation. The northern areas in the upper reaches are most vulnerable. Ecological vulnerability in the midstream is better than that in downstream. Ecological restoration policies had an overall positive influence on ecological vulnerability improvement. From 2001 to 2010, the percentages of Heavy (0.60–0.70) and Very heavy (≥0.70) ecological vulnerability areas in upstream and midstream decreased by 13.3 % under the impact of priority forestry projects. The findings provide guidance for ecological restoration in the Yellow River Basin and the outlined approach is potentially transferable to assess the ecological vulnerability in other regions.

Quantitative Analysis of the Correlation Between Macrobenthos Community and Water Environmental Factors and Aquatic Ecosystem Health Assessment in the North Canal River Basin of Beijing

Macrobenthos can reflect the cumulative effect of various ecological threats on the water environment and are closely related to the health of river ecosystems. In this study, taking the North Canal River basin, a typical basin in Beijing, as an example, ecological data from 34 stations were investigated in the summer of 2015. Characteristics of the macrobenthos communities were analyzed, and driving environmental factors were identified using typical correspondence analysis. Thresholds and response species of those driving environmental factors were conducted using the thresholds indicator taxa analysis (TITAN). In this study, the health status of the river ecosystem was evaluated by the multi-metrics method and benthic index of biotic integrity (B-IBI). The benthic community was dominated by pollution-tolerant aquatic insects and mollusks, with a low-level Shannon-wiener diversity index between 0-1.01; fluoride, biochemical oxygen demand, ammonia-nitrogen, and total phosphorus were driving environmental factors influencing the community structure of macrobenthos. Indicator species of ammonia-nitrogen were identified by the TITAN in the North Canal River basin with a threshold range of 1.09-6.94 mg·L-1; three indicator species of total phosphorus were identified with a threshold range of 0.48-1.27 mg·L-1, which were all positive response species. According to the health assessment, the river ecosystem in the North Canal River basin was generally unhealthy, and the upstream ecosystem was better than that downstream; the health conditions in the mountainous areas of Changping district were the best, whereas those in Chaoyang and central city districts were the worst. This study can provide a basis for ecological restoration and pollution control of rivers and also provide a reference for the water ecological civilization construction in other cities.

Remote Sensing Big Data Analysis of the Lower Yellow River Ecological Environment Based on Internet of Things

This paper collects data on the ecological environment of the lower Yellow River through an IoT approach and provides an in-depth analysis of the ecological remote sensing big data. An impervious fusion of multisource remote sensing data cooperation and multimachine learning algorithm cooperation is proposed. The water surface extraction method has improved the extraction accuracy of the construction land and rural settlements in the Yellow River Delta. The data system, big data management platform, and application scenarios of the environmental data resource center are designed specifically, respectively. Based on the spherical mesh information structure to sort out environmental data, an environmental data system containing data characteristics such as information source, timeliness, and presentation is formed. According to the characteristics of various types of environmental data, the corresponding data access, storage, and analysis support system is designed to form the big data management platform. Strengthen the construction of ecological interception projects for farmland receding water. Speed up the construction of sewage treatment facilities. Carry out waste and sewage pipeline network investigation, speed up the construction of urban sewage collection pipeline network, and improve the waste and sewage collection rate and treatment rate. The management platform adopts the Hadoop framework, which is conducive to the storage of massive data and the utilization of unstructured data. Combined with the relevant national policy requirements and the current environmental protection work status, the application scenarios of environmental big data in environmental decision-making, supervision, and public services are sorted out to form a complete data resource center framework. Gray correlation analysis is used to identify the key influencing factors of different types of cities to elaborate the contents of the construction of water ecological civilization in different types of cities and to build a framework of ideas for the construction of urban water ecological civilization to improve the health of urban water ecological civilization. To realize the sustainable development of the lower reaches of the Yellow River, blind logging and reclamation should be avoided in the process of land development, and more efforts should be made to protect tamarisk scrub and reed scrub, which are vegetation communities with positive effects on the regional ecological environment. In urban planning, the proportion of green area and water area within the city should be reasonably increased, so that the city can develop towards a livable city that is more conducive to human-land harmony and sustainability.

An Evaluation Study on Water Ecological Civilization Construction in Coal Mining Subsidence Area

An Evaluation Study on Water Ecological Civilization Construction in Coal Mining Subsidence Area

Research on Biological Protection Engineering Construction on Downstream Levee of the Yellow River

As an integral part of flood control engineering system, biological protection measures have always been attached great importance to by management units at all levels. Taking the calculation of the width of the breaktide belt in the lower reaches of the Yellow River as an example, this paper studies the great role of the protection works in ensuring the safety of the Yellow River project protection and the construction of water ecological civilization.

Establishment and Application of Performance Evaluation and Obstacle Diagnosis Model for Regional Water Ecological Civilization Construction

A scientific performance evaluation of the regional water ecological civilization construction and clarifying the obstacle factor are key points to improve the performance of regional water ecological civilization construction theory. This study analyzes the coupling relationship between humans and regional water ecology by applying the thinking logic of "driving force-pressure-state-influence-response-management." The regional water ecological civilization construction performance evaluation index system based on the DPSIRM model was established. Combining the unascertained measurement model and obstacle diagnosis model, the water ecological civilization construction performance of Shizuishan City during the past 10 years was empirically evaluated, and the obstacle factors affecting local construction performance were diagnosed and analyzed. The analytical results reveal the following points:First, the performance of the water ecological civilization construction in Shizuishan City gradually increased annually and revealed three development stages:the site visit and slow improvement (2010-2014), intermediate but fast improvement (2015-2017) and good and fast improvement (2018-2019). Second, each subsystem performance index trend varied, but generally, the fluctuations rose. Third, from 2010 to 2014, the average obstacle degree of the subsystem state, subsystem response, and subsystem pressure reached 58.81%, which became the main obstacles restricting the performance of the local water ecological civilization construction. From 2015 to 2017, the average pressure barrier degree reached 21.73%, which was the most significant obstacle to the construction performance. From 2018 to 2019, the average pressure barrier degree remained the largest obstacle by reaching 24.49%. Lastly, the index barrier of the obstacle degree among the top five factors are primarily distributed in the pressure subsystem. A comprehensive frequency ranking of the obstacles, the irrigation water use coefficient, and the pressure of the water consumption per ten thousand yuan of value-added by industry as a representative subsystem are the key directions to future construction. In this paper, the concepts and methods of the research can provide a theoretical reference for the performance evaluation of regional water ecological civilization construction and its obstacle factor diagnosis analysis.

Synergetic Realization Path of Water Ecological Civilization Construction and Human-land System Optimization under the “Three Elements” Structure

Synergetic Realization Path of Water Ecological Civilization Construction and Human-land System Optimization under the “Three Elements” Structure

The Necessity Analysis and Idea Discussion of Sponge City Construction in North China

With the continuous advancement of urbanization in China, the area of forests, fields and lakes have been decreasing. Some cities face two problems which are waterlogging and water shortage. How to deal with water ecological problems? Experts and scholars have proposed to build “sponge city” and make full use of rivers, lakes, buildings, roads, green spaces to form a complete sponge which has good flexibility in responding to environmental changes and natural disasters. This paper analyzes the successful cases of sponge city construction in Potsdamer Platz in Berlin, Germany and Pingxiang City. It analyzes the necessity of building a sponge city in the northern region from alleviating water shortage, preventing flood disasters, strengthening water ecological civilization construction and improving urban drainage infrastructure. It also proposed "zoning management, system construction, policy support."

Willingness of public participation in water ecological civilization construction:Based on questionnaire surveys from five pilot cities

Willingness of public participation in water ecological civilization construction:Based on questionnaire surveys from five pilot cities

Construction of Urban Water Ecological Civilization System

To explore the relationship between water ecological civilization construction and urban water ecosystem health, the Water-Human-Health (WHH) evaluation model that could reflect the health connotation and mechanism of urban water ecosystem model was constructed to evaluate the health level of urban water ecological system. The result showed that the health status of urban water ecosystem health in X city during 2005~2013 was evaluated and it was found that the index of the urban water ecosystem health showed fluctuating upward trend, water system health index declined slightly in fluctuation and the human system health index increased steadily. To sum up, the urban water ecosystem health assessment method and urban water ecological civilization construction framework are reasonable and feasible.

Concept and Connotation of Water Resources Carrying Capacity in Water Ecological Civilization Construction

Water ecological civilization construction is based on the water resources carrying capacity, guided by the sustainable development concept, adhered to the human-water harmony thoughts. This paper has comprehensive analyzed the concept and characteristics of the carrying capacity of water resources in the water ecological civilization construction, and discussed the research methods and evaluation index system of water carrying capacity in the water ecological civilization construction, finally pointed out that the problems and solutions of water carrying capacity in the water ecological civilization construction and put forward the future research prospect.

Impact on operation of the Middle Route Project of South-to-North Water Diversion

The inter-basin water transfer project is one of the most important means to solve the uneven distribution of water resources in time and space, rationally allocate water resources, and promote the construction of water ecological civilization. Research on the operation impact and channel hydraulic response is meaning for the safe operation of long-distance water conveyance canals. Taking the Middle Route Project (MRP) of South-to-North Water Diversion (SNWD) as example, this paper built the onedimensional steady and unsteady flow model and investigated the impact of roughness change, emergency rescue technology and equipment, and sluice control failure. Results showed that increased roughness decreased the water diversion efficiency of MRP to some degree. The emergency rescue technology and equipment occupied the channel section and declined flow capacity. The occurrence of sluice control failure relatively played an increasing impact on upstream water level and a decreasing impact downstream water level and flow discharge. The impact of the above scenarios on the scheduling operation can be reduced to a certain extent by regular cleaning and maintenance, development of rational water emergency rescue project, development of staff skill, etc. This research can provide support for safe operation and regulation of the MRP of SNWD.

Research on River Chiefs System in China: Effect Evaluation, Defects and Future Prospects

It is well known that water resources are one of the most important conditions for a country to develop healthily and sustainably. Since the outbreak of blue algae event in 2007, Wuxi city has put forward the River Chiefs System for all kinds of water resources pollution, have achieved considerable results. There are many problems in the protection and management of water resources in China. Based on the analysis of the basic situation of several typical abundant water resources in China and the current water resources management policy, this paper evaluates the effect of implementing River Chiefs System and puts forward some optimized countermeasures to improve the management and protection of river and lake and promote the construction of water ecological civilization in China.