Digital soil morphometrics of coarse fragments and horizon delineation in soil profiles from Central Mexico
Por:
Gallegos, Angeles, Garcia-Oliva, Felipe, Pereira-Corona, Alberto, Bautista, Francisco
Publicada:
1 sep 2021
Categoría:
Soil science
Resumen:
In this study, we developed a method that allows the delimitation of
horizons and the quantification of coarse fragments in soil profiles
from volcanic areas using digital images. The delineation of the soil
profile horizons included the following phases: pre-processing of the
digital image, extraction of color systems from the preprocessed image,
k-means segmentation of the HSV and CIE L*a*b* color systems,
delineation of the horizons, and determination of the horizon
characteristics. The coarse fragments were quantified in the following
three phases: superpixel analysis of the soil profile image, histogram
classification of the image objects, and extraction and quantification
of the coarse fragments. For horizon delineation, the HSV color system
performed better for the Eutric Andic Cambisol (Loamic, Ochric), and the
CIE L*a*b* system performed better for the Eutric Skeletic Mollic
Silandic Andosol (Loamic). The RGB image and the S component of the HSV
system demonstrated similar coarse fragment volume calculation
performance for the Eutric Andic Cambisol (Loamic, Ochric), whereas the
S component worked best for the Eutric Skeletic Mollic Silandic Andosol
(Loamic). We created a graphic decision making system for the
delineation of soil horizons and for the quantification of coarse
fragments in digital images of soil profiles. (c) 2021 The Authors.
Published by Elsevier B.V. This is an open access article under the CC
BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).
Filiaciones:
Gallegos, Angeles:
Centro de Investigaciones en Geografía Ambiental, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia Michoacán, C.P. 58190, Mexico
Bautista, F (Corresponding Author), Univ Nacl Autonoma Mexico, Ctr Invest Geog Ambiental, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico. Gallegos, Angeles
Garcia-Oliva, Felipe:
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia Michoacán, C.P. 58190, Mexico
Bautista, F (Corresponding Author), Univ Nacl Autonoma Mexico, Ctr Invest Geog Ambiental, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico. Gallegos, Angeles
Pereira-Corona, Alberto:
División de Ciencias e Ingeniería, Universidad de Quintana Roo, Boulevard Bahía esq. Ignacio Comonfort s/n, Colonia del Bosque, Chetumal, Quintana Roo 77019, Mexico
Bautista, F (Corresponding Author), Univ Nacl Autonoma Mexico, Ctr Invest Geog Ambiental, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico. Gallegos, Angeles
Bautista, Francisco:
Centro de Investigaciones en Geografía Ambiental, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia Michoacán, C.P. 58190, Mexico
Bautista, F (Corresponding Author), Univ Nacl Autonoma Mexico, Ctr Invest Geog Ambiental, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico. Gallegos, Angeles
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