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Method for calculating virtual water content of agricultural products in certain area

A technology for water content and agricultural products, applied in computing, instrumentation, data processing applications, etc., can solve the problems of difficult data acquisition, difficult implementation, huge workload of virtual water content, etc., and achieve the effect of simple calculation method

Inactive Publication Date: 2014-05-28
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0002] At present, most of the regional agricultural product trade data that can be obtained are counted according to product categories, but it is very difficult to obtain data subdivided into specific products. There are many varieties of agricultural products. Due to the lack of matching trade data, the workload of calculating the virtual water content of various agricultural products is huge. And it is difficult to implement, therefore, there is a need for a method that can quickly and efficiently obtain the virtual water content of agricultural products in a certain area

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  • Method for calculating virtual water content of agricultural products in certain area
  • Method for calculating virtual water content of agricultural products in certain area
  • Method for calculating virtual water content of agricultural products in certain area

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Embodiment Construction

[0019] The present invention will be further described below:

[0020] The present invention comprises the following steps:

[0021] (1) Divide products into six categories: grain, vegetables, fruits, meat, poultry eggs, and dairy products;

[0022] (2) Calculate the virtual water content of crops: the virtual water content SWD of crops is obtained from the water demand CWR per unit area of ​​crops and the output per unit area by the following formula:

[0023] SWD n , c = CWR n , c CY n , c ;

[0024] Where: SWD n,c is the virtual water content of an area n and crop c; CWR n,c is the water demand per unit area of ​​crops in a certain area n and crop c; CY n,c is the wa...

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Abstract

The invention discloses a method for calculating virtual water content of agricultural products in a certain area. Firstly, the agricultural products are divided into six categories of grains, vegetables, fruits, meat, poultry and eggs and dairy products, then, the virtual water content of one category of the agricultural products is calculated, and lastly, the virtual water content of the agricultural products in the certain area is calculated. Compared with the prior art, the method for calculating the virtual water content of the agricultural products in the certain area is simple, convenient to implement and capable of solving the problems that virtual water flow calculation is short of normalization and large in workload due to immaturity of a method, wide varieties of the agricultural products and complexity of the computing process at present, and the method for calculating the virtual water content of the agricultural products in the certain area has popularization and using value.

Description

technical field [0001] The invention relates to a method for simulating water content, in particular to a method for calculating virtual water content of agricultural products in a certain area. Background technique [0002] At present, most of the regional agricultural product trade data that can be obtained are counted according to product categories, but it is very difficult to obtain data subdivided into specific products. There are many varieties of agricultural products. Due to the lack of matching trade data, the workload of calculating the virtual water content of various agricultural products is huge. And it is difficult to implement. Therefore, a method that can quickly and efficiently obtain the virtual water content of agricultural products in a certain area is needed. Contents of the invention [0003] The purpose of the present invention is to provide a method for calculating the virtual water content of agricultural products in a certain area in order to sol...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/02
Inventor 马静王浩汪党献陈敏建陈涛
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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