Method for monitoring hazard of Eospalax baileyi and Ochotona curzoniae based on micro UAV technology

Abstract

The invention provides a method for monitoring the hazard of Eospalax baileyi and Ochotona curzoniae based on micro UAV technology, comprising the following steps: 1) setting a ground control point; 2) determining the best aerial photographing height by using four indexes including the width and resolution of a single image, the total number of photos in a research region, and the number of molehills visually interpreted in a test sample plot; 3) determining the month and the time of the aerial photography; 4) determining a UAV sampling range; 5) preprocessing data to splice the aerial photograph images of the UAV to form a spliced image of a sampling survey air strip; 6) constructing an interpretation mark library; 7) performing human-machine interactive interpretation to interpret the spliced image; 8) evaluating the classification accuracy; and 9) evaluation an effect to compare a final result with that of a traditional method. The method changes a traditional method of artificiallycounting molehills and mouse holes, increases the recognition speed of the molehills and the mouse holes, has high accuracy, large sampling area and is not affected by roads or terrain.

Description

technical field [0001] The invention relates to the field of hazard monitoring for plateau zokors and plateau pikas, in particular to a hazard monitoring method for plateau zokors and plateau pikas based on micro-unmanned aerial vehicle technology. Background technique [0002] Grassland is an important base and an important ecological barrier for the development of animal husbandry in my country. It has important practical significance for maintaining ecological balance, stabilizing frontiers, maintaining sustainable economic and social development, and enhancing my country's international status. The total area of ​​various natural grasslands in my country is about 4×108hm², accounting for 41.7% of my country's land area, and it is the largest terrestrial main ecosystem in my country. Grassland resources not only directly or indirectly provide the necessary means of production and subsistence for human survival and development, but also have ecological service functions i...

AI Technical Summary

Problems solved by technology

This method needs to capture all the rats in the sample plot and calculate the absolute rat density. Due to the limitation of manpower, the scope of the survey sample plot is small. Generally, a sample method of 50m×50m or a sample circle survey method with a radius of 28.2 m is used. The survey accuracy of the number of mouse mounds or openings in the square is high, but due to the influence of the survey area and the strong heterogeneity of the mouse mounds or openings, resulting in poor representativeness

[0007] To this end, the application of the present invention aims to provide a method for monitoring the hazards of plateau zokors and plateau pikas based on micro-drone technology, by using the rotor drone aircraft as a platform, flying at a suitable time and height, and taking aerial pictures Real-time and rapid acquisition of ground information, combined with the interpretation of aerial photos, to achieve the purpose of obtaining information on the spatial distribution of plateau pikas and mouse mounds and the area of ​​​​rodent damage, focusing on manual monitoring of plateau pikas and plateau zokors Time-consuming and labor-intensive, low precision, difficult to monitor a large area, and difficult to analyze the spatial dynamic distribution of the hole or mouse mound, etc.

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