A method for nondestructive detection of three-dimensional configuration of plant roots

Abstract

The invention provides a plant root system three-dimensional configuration nondestructive testing method. The surface of a plant root system is detected in real time through a ground penetrating radar antenna. The method further includes the following steps that the three-dimensional position and pose information of the ground penetrating radar antenna at any moment are acquired; three-dimensional space information of an electromagnetic spectrum transmitted by ground penetrating radar at any moment is acquired; double-mode processing is conducted on numerical value information and image information of the electromagnetic spectrum; section information, acquired through the numerical value information, of an underground unknown object and section information, acquired through the image information, of the underground unknown object are compared, it the section information acquired through the numerical value information and the section information acquired through the image information are identical, it is determined that the region is a non-soil object region; whether the unknown object is the plant root system or not is judged; if the unknown object is the plant root system, the related form and position information of the root system section is acquired; three-dimensional configuration is conducted on the plant root system through the root fault sections acquired in different positions. Compared with the prior art, radar measuring lines and a measuring network do not need to be manually set and nondestructive acquisition of the plant root system configuration and the plant root system trend is achieved.

Description

technical field [0001] The invention relates to the technical field of non-destructive detection and quantitative measurement of underground target detection objects, in particular to the non-destructive detection of plant roots. Background technique [0002] The acquisition of plant root architecture plays an important role in the study of the mechanism of root system soil consolidation and slope protection, the study of plant root carbon sequestration, and the study of plant growth and development. However, direct observation of plant roots is difficult due to the opaque nature of the soil. At present, there are mainly the following detection methods: one is to obtain the relevant configuration information of the root system by directly excavating the soil. However, the direct excavation will destroy the growth of plants; the second is to use the window method and the micro root window method to realize the observation of the plant root system, but these methods have prob...

AI Technical Summary

Problems solved by technology

At present, when ground penetrating radar is used to detect roots non-destructively, radar survey lines or survey nets need to be laid out before the test, and the radar antenna can only advance along the radar survey lines and survey nets, so only the relevant information of the section below the survey line can be obtained

However, for the ground surface without a survey line, relevant information about the subsurface cannot be obtained

Therefore, when using this method to detect the root system, firstly, it leads to the lack of a lot of underground information, which greatly reduces the accuracy of the root section acquisition; secondly, due to the limitation of the radar survey line or survey network, it is impossible to realize the measurement of the radar antenna at any position

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