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Agricultural irrigation area extraction method and system

An extraction method and agricultural technology, applied in the direction of radiation pyrometry, measuring devices, instruments, etc., can solve the problems of fragmented land or small areas that are difficult to popularize and apply, and achieve the effect of accurately extracting agricultural irrigation areas

Active Publication Date: 2022-01-28
CHINESE ACAD OF METEOROLOGICAL SCI +1
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  • Application Information

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Problems solved by technology

The soil moisture analysis method mainly uses microwave data or thermal infrared data to analyze soil moisture conditions. The mechanism of this method is clear, but limited by the spatial resolution, it is difficult to apply to fragmented or small areas.

Method used

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  • Agricultural irrigation area extraction method and system
  • Agricultural irrigation area extraction method and system
  • Agricultural irrigation area extraction method and system

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Embodiment Construction

[0048] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0049] figure 1 It is a schematic flow chart of a method for extracting agricultural irrigation areas provided in the embodiments of the present invention, such as figure 1 As shown, the method includes:

[0050] S1. Obtain the historical crop planting area in the monitoring area of ​​the agricultural planting area, and determine the crop planting area of ​​the current year in the monitorin...

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Abstract

The invention provides an agricultural irrigation area extraction method and system. In an extraction process, thermal infrared remote sensing image data of a historical crop planting area in the current year are subjected to downscaling treatment, a feature space is constructed according to refined thermal infrared temperature data and vegetation coverage data, and the temperature vegetation drought index of the crop planting area in the current year is determined, so that the purpose of accurately extracting the agricultural irrigation area can be achieved.

Description

technical field [0001] The invention relates to the technical field of information extraction, in particular to an extraction method and system for agricultural irrigation areas. Background technique [0002] Irrigated areas refer to artificially irrigated areas. The area and distribution information of agricultural irrigated areas located in arid and semi-arid areas is very important for crop growth and yield estimation. In addition, due to the relative scarcity of water resources (including precipitation, groundwater, river and lake water resources, etc.) important. [0003] At present, the extraction methods of agricultural irrigation area information in arid and semi-arid areas usually include manual statistical methods and remote sensing methods. The artificial statistical method mainly obtains the information of agricultural irrigation areas through artificial field statistics and summary reporting. The problem of this method is that it is not objective enough and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00G01N21/17
CPCG01J5/00G01N21/17G01J2005/0077G01N2021/1793G01N2021/1797
Inventor 周广胜王树东汲玉河
Owner CHINESE ACAD OF METEOROLOGICAL SCI