DIGITAL IMAGE PROCESSING FOR EVALUATION OF PASPALUM MILLEGRANA SCHRAD ROOT SYSTEM

The characterization of the plant root system is of great importance for the understanding of its contribution to soil shear resistance, constituting an important tool for decision making in soil bioengineering works. The objective of this work was to evaluate the growth and distribution characteris...

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Bibliographic Details
Published in:Caatinga 2020-01, Vol.33 (1), p.100
Main Authors: Airton Marques de Carvalho, Luiz Diego Vidal Santos, Francisco Sandro Rodrigues Holanda, Pedrotti, Alceu, Guilherme Matos Antonio
Format: Article
Language:eng ; por
Subjects:
Bioengineering
Computer programs
Decision making
Digital imaging
Erosion resistance
Evaluation
Image processing
Methods
Native species
Paspalum
Paspalum millegrana
Plant roots
Roots
Shear strength
Software
Soil depth
Soil erosion
Soil resistance
Soils
Spatial distribution
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Summary:The characterization of the plant root system is of great importance for the understanding of its contribution to soil shear resistance, constituting an important tool for decision making in soil bioengineering works. The objective of this work was to evaluate the growth and distribution characteristics of the root system of Paspalum millegrana Schrad. grass in Entisol using Digital Imaging Processing (DIP). The data were obtained by opening a soil pit to expose the root system of Paspalum grass up to 1.70 m depth. The profile wall and volumetric ring methods were used to collect quantitative information of the root system. The SAFIRA software and the ArcMAP software belonging to the ArcGIS suite were used for image processing. The profile wall method showed that Paspalum grass has a large volume of roots in the first 0.40 m to 1.30 m soil depth. It was observed that the root length and volume of Paspalum grass reach depths beyond 1.70 m, which is important to increase soil resistance to erosion processes. The profile wall method when compared to the volumetric ring method proved to be more efficient to understand the behavior of the Paspalum grass root system since it enables an assessment of its spatial distribution with better detailing.
ISSN:0100-316X
1983-2125
DOI:10.1590/1983-21252020v33n111rc