Evaluation Methods of Water Environment Safety and Their Application to the Three Northeast Provinces of China

Autor: Yujing Liu, Maohua Sun, Yuangang Li, Guanghui Yuan
Rok vydání: 2019
Předmět:
the three northeast provinces of China
principal component analysis
020209 energy
lcsh:TJ807-830
Geography
Planning and Development
lcsh:Renewable energy sources
02 engineering and technology
010501 environmental sciences
Management
Monitoring
Policy and Law
01 natural sciences
Representativeness heuristic
Agricultural economics
fuzzy comprehensive evaluation
0202 electrical engineering
electronic engineering
information engineering
Per capita
Water environment
China
Tertiary sector of the economy
lcsh:Environmental sciences
0105 earth and related environmental sciences
lcsh:GE1-350
Sustainable development
sustainable development
water environment safety
Renewable Energy
Sustainability and the Environment
business.industry
lcsh:Environmental effects of industries and plants
Water resources
lcsh:TD194-195
Secondary sector of the economy
Environmental science
business
Zdroj: Sustainability; Volume 11; Issue 18; Pages: 5135
Sustainability, Vol 11, Iss 18, p 5135 (2019)
ISSN: 2071-1050
DOI: 10.3390/su11185135
Popis: Focusing on the topic of water environment safety of China, this paper has selected the three northeast provinces of China as the research object due to their representativeness in economic development and resource security. By using the Entropy Weight Method, the Grey Correlation Analysis Method, and the Principal Component Analysis Method, this paper has first constructed a water environment safety evaluation system with 17 indicators from the economic, environmental, and ecological aspects. Furthermore, this paper has screened the initially selected indicators by the Principal Component Analysis Method and finally determined 11 indicators as the evaluation indicators. After indicator screening, this paper has adopted the improved Fuzzy Comprehensive Evaluation Method to evaluate the water environment safety of the three northeast provinces of China and obtained the change in water environment safety of different provinces from 2009 to 2017. The results show that the overall water environment safety of the region had improved first but worsened afterward, and that in terms of water safety level, Jilin Province ranked first, followed by Heilongjiang Province and Liaoning Province. The three factors that have the greatest impact on the water environment safety of the three provinces are: Liaoning—Chemical Oxygen Demand (score: 17.10), Per Capita Disposable Income (score: 13.50), and Secondary Industry Output (score: 11.50); Heilongjiang—Chemical Oxygen Demand (score: 18.64), Per Capita Water Resources (score: 12.75), and Concentration of Inhalable Particles (score: 10.89); Jilin—Per Capita Water Resources (score: 15.75), Chemical Oxygen Demand (score: 14.87), and Service Industry Output (score: 11.55). Based on analysis of the evaluation results, this paper has proposed corresponding policy recommendations to improve the water environment safety and promote sustainable development in the northeast provinces of China.
Databáze: OpenAIRE
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