Vegetation root system three-dimensional nondestructive detection method based on geological radar

Abstract

The invention discloses a vegetation root system three-dimensional nondestructive detection method based on a geological radar. The method comprises the steps: carrying out gridding vegetation root system detection: scanning a vegetation root system through a geological radar to obtain the geological radar electromagnetic wave data of the vegetation root system; preprocessing the geological radarelectromagnetic wave data in three aspects: marking the relative position of each detection line according to a gridding detection mode; and extracting characteristic information carrying vegetation root systems from the preprocessed geological radar electromagnetic waves, performing correlation analysis on the root system characteristics and the electromagnetic wave characteristic data, constructing a relationship between electromagnetic wave characteristic attributes and actually measured vegetation root system characteristic quantities, and inverting three-dimensional distribution characteristics of the vegetation root systems. According to the invention, the three-dimensional visualization method for the vegetation root system is achieved through root system slices at different positions and the relation between the slices; and root system detection in different periods is carried out on one plant to obtain the growth process and root system development characteristics of vegetation root system growth.

Description

Technical field[0001]The invention belongs to the technical field of vegetation root system morphological distribution characteristics in ecological hydrogeology, in particular to a three-dimensional non-destructive detection method of vegetation root system based on geological radar.Background technique[0002]In arid and semi-arid regions, the relationship between natural vegetation and groundwater is one of the important research contents of ecological hydrogeology. Quantitative description of vegetation water consumption and water demand has become an important indicator of water resources evaluation in this area. To study the analytical methods of root water absorption mechanism and evapotranspiration, the distribution characteristics of vegetation roots become the key.[0003]The inability to observe the distribution of vegetation roots underground makes it impossible to develop the restrictive factors affecting root development. The traditional methods mainly include soil drillin...

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Problems solved by technology

[0003] The inability to observe the distribution of vegetation roots in the subsurface precludes the development of constraints affecting root development.

Traditional methods mainly include soil drilling method, root digging method and soil profile method, etc., but these methods are not only time-consuming and labor-intensive, but also require a large amount of detection work, and damage the root system structure, which also damages the growth of vegetation.

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