Trade-based virtual water overflow risk comprehensive assessment method

Abstract

The invention discloses a trade-based virtual water overflow risk comprehensive assessment method. According to the method, water use risks of a research area are assessed from three aspects of initial risk assessment, virtual water flow risk assessment and virtual water overflow risk assessment. The initial risk assessment is used for obtaining entity water consumption of each department in the research area, classifying initial risks of the departments, assessing the water consumption intensity condition of the departments from the most intuitive water consumption, and assessing the initialwater consumption risks of the departments; the virtual water flow risk assessment is used for assessing the contribution of each department in the research area in the virtual water flow risk; and the virtual water overflow risk assessment is used for determining a risk overflow relationship among provinces. The whole method quantitatively and comprehensively assesses and analyzes the water use risk of the research area from the three aspects, a more systematic analysis and assessment method is formed, and water use risk assessment is more comprehensive; the assessment result is more accurate, and a more comprehensive, more accurate and more reliable scientific basis is provided for sustainable utilization of water resources.

Description

technical field [0001] The invention belongs to the field of water resources evaluation and management, in particular to a trade-based comprehensive evaluation method for virtual water overflow risks. Background technique [0002] Water resources are an important part of the ecosystem, providing an important material basis and ecological services for the development of human society. Growing population and consumption increase human demand for water for domestic, industrial and agricultural purposes. With the rapid development of China's social economy, problems such as uneven distribution of water resources, excessive development and utilization, and serious water pollution have become increasingly prominent. The available water quantity and quality have profoundly affected the production of goods and services and the sustainable operation of ecosystems. How to improve the utilization efficiency of water resources and ensure the sustainable use of water resources is a key...

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Problems solved by technology

On the other hand, although a large amount of analysis has been carried out in the aspect of water resources management in the existing technology, especially for virtual water trade, the evaluation of virtual water from the perspective of risk spillover is very limited, and it is impossible to conduct a systematic and comprehensive analysis

In addition, there are deficiencies in the existing analysis of virtual water trade: mainly focusing on the transfer of virtual water in grain trade while ignoring the flow of virtual water in other economic sectors, or merging economic sectors in the research, resulting in the omission of detailed information, Moreover, there is no systematic assessment of the risks brought by virtual water trade to a region, resulting in incomplete assessment results

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