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Method for calculating water resource saving amount under action of virtual water trade

A calculation method and technology of water resource quantity, applied in the field of calculation of water resource conservation under the effect of virtual water trade, can solve problems such as unreasonable evaluation of water resource conservation

Inactive Publication Date: 2018-09-07
HOHAI UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a method for calculating the amount of water resources saved under the effect of virtual water trade, and to solve the problem that the amount of water resources saved in the prior art only considers the use efficiency of water resources, which leads to inaccurate evaluation of the amount of water resources saved legitimate technical questions

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  • Method for calculating water resource saving amount under action of virtual water trade
  • Method for calculating water resource saving amount under action of virtual water trade
  • Method for calculating water resource saving amount under action of virtual water trade

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Embodiment Construction

[0031] The calculation method of water resources conservation under the effect of virtual water trade provided by the present invention incorporates the scarcity of water resources in the region into the method system of water resources conservation evaluation, and quantifies the conservation or loss of water resources, specifically: collecting product output and the amount of water resources required for the production of products to determine the virtual water content; calculate the water resource scarcity index according to the water resource vulnerability index; collect product export volume information, and comprehensively consider the virtual water content and water resource scarcity index to calculate the water generated by product export. Resource savings. More specifically, the following steps are included:

[0032] (1) Determine the export volume E of product i from region p to region q, the respective water scarcity indices S of region p and region q, and the virtua...

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Abstract

The present invention discloses a method for calculating the water resource saving amount under the action of virtual water trade. The method comprises the steps of: collecting the product output quantity and the water quantity required for producing products, and determining the virtual water content; calculating a water resource scarcity index according to a water resource vulnerability indicator; and collecting information of the product export volume, comprehensively considering the virtual water content and the water scarcity index to calculate the water saving amount generated by productexport. According to the method disclosed by the present invention, regional water scarcity is incorporated into the method system of water conservation evaluation, the calculation of water resourcesaving or loss is more scientific and reasonable, and the method has certain technical guiding significance for coordinating the integrated water and virtual water to realize the national water security in China.

Description

technical field [0001] The invention relates to a method for calculating the amount of water resources saved under the effect of virtual water trade. Background technique [0002] The water included in product trade is called virtual water, and once these products are circulated between regions, virtual water trade will be generated. Along with the research on virtual water, the theory and method of saving water resources caused by virtual water trade came into being. Conventional wisdom holds that water is conserved when virtual water flows from areas with high water use efficiency to areas with low water use efficiency. However, when there is pressure on water resources at the exporter of virtual water, while the pressure on water resources at the importer of virtual water is relatively small, the following contradictions may appear in this accounting result: Although in terms of volume, virtual water trade has caused water resources to be saved, but Exporting regions th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y02A20/00
Inventor 赵旭侯思雨张信信李一平
Owner HOHAI UNIV
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