Actual irrigation area extraction method based on multi-source information

A technology of irrigation area and extraction method, which is applied in image data processing, instrumentation, calculation, etc., and can solve the problems of heavy statistical workload, poor timeliness and accuracy

Pending Publication Date: 2020-05-22
CHINA IRRIGATION & DRAINAGE DEV CENT +2
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AI Technical Summary

Problems solved by technology

At present, the irrigated area is mainly obtained through survey and statistics, which is relatively poor in timeliness and accuracy, and the statistical workload is relatively large; in the water management of irrigation areas, it is urgent to master the irrigated area index, its spatial distribution and dynamic changes, etc. Therefore, the traditional irrigated area acquisition met

Method used

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  • Actual irrigation area extraction method based on multi-source information
  • Actual irrigation area extraction method based on multi-source information
  • Actual irrigation area extraction method based on multi-source information

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] figure 1 It is a flow chart of the steps of a method for extracting actual irrigated area based on multi-source information provided in the embodiment of this application.

[0045] Such as figure 1 As shown, the extraction method of the actual irrigated area provided in this embodiment includes the following steps:

[0046] S1. Extract the potential irrigation area according to the pre-acquired multi-source information.

[0047] Specifically, the pot...

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Abstract

The embodiment of the invention provides an actual irrigation area extraction method based on multi-source information, and the method specifically comprises the steps of extracting a potential irrigation area according to the pre-obtained multi-source information, and the multi-source information comprises basic geographic information, meteorological information, irrigation and drainage engineering information, agricultural planting structure information, and irrigation system information; carrying out inversion calculation on the field surface soil water content in the crop growth period inthe potential irrigation area by utilizing remote sensing information; and extracting from the potential irrigation area by adopting different methods according to the water content of the field surface soil to obtain an actual irrigation area. Through the operation, the actual irrigation area can be quickly and effectively obtained, so that a scientific and objective basis can be provided for agricultural water management.

Description

technical field [0001] The invention relates to the technical fields of agricultural water and soil engineering and remote sensing, in particular to a method for extracting actual irrigated area based on multi-source information. Background technique [0002] my country is a country with extremely scarce water resources. In addition, water environmental pollution and water ecological damage have become increasingly prominent, and the contradiction between supply and demand of water resources has become increasingly prominent. In my country, agriculture is a large water user, with agricultural water consumption accounting for about 62% of the total water consumption, while farmland irrigation water consumption accounts for about 85% of agricultural water consumption, which is an important part of my country's economic and social water use. Therefore, agricultural water management is also important. Become the focus and core content of the most stringent water resources managem...

Claims

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Application Information

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IPC IPC(8): G06T7/62
CPCG06T7/62G06T2207/10032G06T2207/30188
Inventor 韩振中吴迪白亮亮路京选龙笛徐磊沈莹莹崔静
Owner CHINA IRRIGATION & DRAINAGE DEV CENT
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