An Analysis Method of Water Requirement for Irrigation Levels of Farmland
A technology for farmland irrigation and water demand, applied in general water supply saving, data processing application, forecasting, etc., can solve the problems of providing reliable basis for irrigation water allocation planning and management guidance, inaccurate results, and analysis of crop water demand
A technology for farmland irrigation and water demand, applied in general water supply saving, data processing application, forecasting, etc., can solve the problems of providing reliable basis for irrigation water allocation planning and management guidance, inaccurate results, and analysis of crop water demand
CN107491844BActive Publication Date: 2021-06-15CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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[0031] In order to make the objects, technical solutions, and advantages of the present invention more clear, the technical solutions of the embodiments of the present invention will be described in contemplation in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art are within the scope of the present invention based on the embodiments of the invention described herein.
[0032] Such as figure 1 As shown, one embodiment of the present invention provides a method of analyzing the water quantity of farmland irrigation level, including the following steps:
[0033] Step 101, according to the theoretical demand and effective precipitation in the crop growth period, the water is required for farmland irrigation rigidity.
[0034] In this step, the theoretical water content of the crop ...
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The invention provides a method for analyzing the water demand of farmland irrigation levels. The method comprises the following steps: analyzing the rigid water demand of farmland irrigation according to the theoretical water demand and effective precipitation in the growth period of crops; The elastic water demand for farmland irrigation is analyzed by coefficient; the luxury water demand for farmland irrigation is analyzed according to the actual utilization coefficient of irrigation water which is lower than the effective utilization coefficient of advanced farmland irrigation water recommended by the local area. According to the method for analyzing the water demand of farmland irrigation levels in the embodiment of the present invention, the problem of inaccurate calculation of the water demand for farmland irrigation is solved, and the water demand for farmland irrigation is analyzed and calculated in different levels, so that the water demand of each level of farmland irrigation can be accurately analyzed and calculated. , improve the efficiency of farmland irrigation water use, save water resources, point out the direction for the management and control of farmland irrigation water use, and provide a reliable basis for irrigation water management guidance and planning and allocation.
Description
Technical field [0001] The present invention relates to the field of water resources demand prediction, and more particularly to a method of analyzing water in farmland irrigation level. Background technique [0002] Agricultural water is an important part of my country's current water, among which farmland irrigation water saves most of them. At present, my country's farmland irrigation methods are relatively extensive than developed countries. The phenomenon of high water is farm irrigation. In addition, for some canal irrigation, farmland irrigation water effective utilization factors are relatively small, distance developed countries 0.7- 0.8 Farmland irrigation water effective utilization coefficient has a large gap, has a waste of water resources, and the effective utilization efficiency of water resources is low. [0003] The study believes that water is a hierarchy, which can be three levels of irrigation water demand, elastic demand, and luxury demand. Rigid demand refer...
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Patent Timeline
15 Jun 2021
Publication
CN107491844B
- IPC
- G06Q10/04; G06Q50/02; G06Q50/06
- CPC
- G06Q10/04; G06Q50/02; G06Q50/06; Y02A20/152
- Inventors
- 王建华; 侯保灯