A method for judging the suitable water planting of main grain crops in different regions

A technology of food crops and crops, applied in general water supply conservation, data processing applications, instruments, etc.

Active Publication Date: 2019-05-28
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is still a lack of relative quantitative judgment methods for green water, blue water, production input and output spatial patterns of food production, and a quick method for agricultural production, water resource management and decision makers to intuitively judge the spatial planting layout and optimization of food crops

Method used

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  • A method for judging the suitable water planting of main grain crops in different regions
  • A method for judging the suitable water planting of main grain crops in different regions
  • A method for judging the suitable water planting of main grain crops in different regions

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Embodiment

[0040] This embodiment is a method for judging the suitable water planting of main food crops between regions. The process is as follows: figure 1 shown. This embodiment calculates according to meteorological data or combined with water resources comprehensive planning irrigation water demand query system to obtain crop water demand and blue water ratio, combined with China's "National Agricultural Product Cost and Benefit Data Collection" production cost, land cost, and main product output data, Establish a discriminant formula for water-suitable planting of major food crops, analyze the characteristics of water-suitable planting of major food crops in space, and provide technical support for making full use of green water, saving blue water, rationally optimizing the spatial layout of food production, and analyzing agricultural water security .

[0041] In this embodiment, the water-suitable planting discrimination index is set with the goal of less water consumption, smal...

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Abstract

The invention relates to a method for discriminating hygrophilous planting of interregional main food crops. The method comprises the following steps: dividing regions; dividing crops; calculating thewater requirement of the food crops every ten days; calculating the effective rainfall capacity within a growing period of the food crops every ten days; calculating the irrigation water requirement;analyzing feature vectors of crop production factors; normalizing; and discriminating the hygrophilous planting. The method is capable of, based on virtual water and a water footprint theory, establishing a discriminating formula for the hygrophilous planting of the main food crops by using an analytical hierarchy process, and providing the method for discriminating the hygrophilous planting of the interregional main food crops by using the formula, objectively and comprehensively reflecting the food production and the water resource application, namely the effective rainfall capacity, the irrigation water requirement and the spatial feature, and providing the scientific basis for the rationalized application of the agriculture water resource and the hygrophilous planting distribution ofthe main food crops.

Description

technical field [0001] The invention relates to a method for judging the suitable water planting of main grain crops in different regions, a method for rationally utilizing water resources in grain crop production, and a method for rationally controlling and configuring regional grain crop irrigation water use. Background technique [0002] With population growth and continuous improvement of people's living standards, the demand for food will further increase, and agricultural development is facing the challenge of producing more food with limited water resources. It is a fundamental measure to alleviate the pressure on regional water resources and ensure food security by planting suitable water, reducing the water consumption required for food crop production, especially the demand for blue water, and improving the grain production capacity of a single source of water. [0003] In recent years, theories and methods of water resource utilization and management, such as virt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06Q10/0639G06Q50/02Y02A20/152
Inventor 汪林姚懿真杨贵羽贾玲张瑀桐游进军秦长海林鹏飞彭卓越汪勇苏辉东
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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