Study of the spatial variability of moisture and compaction in soils with different plant covers
Soil is a dynamic system, with physical, chemical and biological properties that have high spatial variability, making necessary to use innovative methodologies to study this variability. The aim of this study was to determine the spatial variability of moisture and compaction in soils with different plant covers. The study was conducted in the department of Boyaca (Co lombia), municipality of Sogamoso, Ombachita District. A total of 95 sampling points were measured as a rigid network in an area of 34.18 ha, which were georeferenced and taken as representative for the plant cover in the sampling area. The values of penetration resistance (PR) found in the soil ranged from 0.717 to 1.385 MPa, so that, as the depth increased, the PR increased, while the volumetric moisture presented an inversely proportional behavior for depth. The cover that prevailed in the study area was a mosaic of pastures and crops (MPC), at 30.1%. The moisture values were lower in the area planted with eucalyptus. The PR showed greater spatial dependence at a greater depth, while the moisture presented a moderate dependence at different depths.
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
2016
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oai:www.revistas.unal.edu.co:article-599842019-06-18T15:36:49Z Study of the spatial variability of moisture and compaction in soils with different plant covers Estudio de la variabilidad espacial de la humedad y la compactación en suelos con diferentes coberturas vegetales Pinzón-Gómez, Lida Paola Alvarez Herrera, Javier Giovanni Mesa-Amezquita, Andrés geostatistics physical properties semivariogram spatial dependence. dependencia espacial geoestadística propie dades físicas semivariograma Soil is a dynamic system, with physical, chemical and biological properties that have high spatial variability, making necessary to use innovative methodologies to study this variability. The aim of this study was to determine the spatial variability of moisture and compaction in soils with different plant covers. The study was conducted in the department of Boyaca (Co lombia), municipality of Sogamoso, Ombachita District. A total of 95 sampling points were measured as a rigid network in an area of 34.18 ha, which were georeferenced and taken as representative for the plant cover in the sampling area. The values of penetration resistance (PR) found in the soil ranged from 0.717 to 1.385 MPa, so that, as the depth increased, the PR increased, while the volumetric moisture presented an inversely proportional behavior for depth. The cover that prevailed in the study area was a mosaic of pastures and crops (MPC), at 30.1%. The moisture values were lower in the area planted with eucalyptus. The PR showed greater spatial dependence at a greater depth, while the moisture presented a moderate dependence at different depths. El suelo es un sistema dinámico con propiedades físicas, quími cas y biológicas que presentan una gran variabilidad espacial, de tal forma que se ha hecho necesario el uso de metodologías novedosas que permitan estudiar dicha variabilidad. El objetivo del presente trabajo fue determinar la variabilidad espacial de la humedad y la compactación en suelos con diferentes coberturas vegetales. El estudio se realizó en el departamento de Boyacá (Colombia), municipio de Sogamoso, Vereda Ombachita. Se midieron 95 puntos de muestreo en forma de red rígida, en un área de 34,18 ha, los cuales fueron georreferenciados teniendo en cuenta que su ubicación fuera representativa de las cober turas vegetales del área de estudio. Los valores de resistencia de penetración (RP) encontrados en el suelo oscilaron entre 0,717 y 1,385 MPa, de tal forma que a medida que aumenta la profundidad, la RP aumenta, mientras que la humedad volumétrica presentó un comportamiento inversamente pro porcional a la profundidad. La cobertura que predominó en el área muestreada fue mosaico de pastos y cultivos (MPC) con un 30,1%. Los valores de humedad fueron menores en la zona sembrada con Eucalipto. La RP mostró mayor dependencia espacial a mayor profundidad, mientras que la humedad pre sentó una dependencia moderada a las distintas profundidades. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias 2016-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/xml https://revistas.unal.edu.co/index.php/agrocol/article/view/59984 10.15446/agron.colomb.v34n3.59984 Agronomía Colombiana; Vol. 34 No. 3 (2016); 355-363 Agronomía Colombiana; Vol. 34 Núm. 3 (2016); 355-363 Agronomía Colombiana; v. 34 n. 3 (2016); 355-363 2357-3732 0120-9965 eng https://revistas.unal.edu.co/index.php/agrocol/article/view/59984/59173 https://revistas.unal.edu.co/index.php/agrocol/article/view/59984/60787 Copyright (c) 2016 Agronomía Colombiana https://creativecommons.org/licenses/by-nc-sa/4.0 |
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Colombia |
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| libraryname |
tema Nacional de Bibliotecas de la UNAL |
| language |
eng |
| format |
Digital |
| author |
Pinzón-Gómez, Lida Paola Alvarez Herrera, Javier Giovanni Mesa-Amezquita, Andrés |
| spellingShingle |
Pinzón-Gómez, Lida Paola Alvarez Herrera, Javier Giovanni Mesa-Amezquita, Andrés Study of the spatial variability of moisture and compaction in soils with different plant covers |
| author_facet |
Pinzón-Gómez, Lida Paola Alvarez Herrera, Javier Giovanni Mesa-Amezquita, Andrés |
| author_sort |
Pinzón-Gómez, Lida Paola |
| title |
Study of the spatial variability of moisture and compaction in soils with different plant covers |
| title_short |
Study of the spatial variability of moisture and compaction in soils with different plant covers |
| title_full |
Study of the spatial variability of moisture and compaction in soils with different plant covers |
| title_fullStr |
Study of the spatial variability of moisture and compaction in soils with different plant covers |
| title_full_unstemmed |
Study of the spatial variability of moisture and compaction in soils with different plant covers |
| title_sort |
study of the spatial variability of moisture and compaction in soils with different plant covers |
| description |
Soil is a dynamic system, with physical, chemical and biological properties that have high spatial variability, making necessary to use innovative methodologies to study this variability. The aim of this study was to determine the spatial variability of moisture and compaction in soils with different plant covers. The study was conducted in the department of Boyaca (Co lombia), municipality of Sogamoso, Ombachita District. A total of 95 sampling points were measured as a rigid network in an area of 34.18 ha, which were georeferenced and taken as representative for the plant cover in the sampling area. The values of penetration resistance (PR) found in the soil ranged from 0.717 to 1.385 MPa, so that, as the depth increased, the PR increased, while the volumetric moisture presented an inversely proportional behavior for depth. The cover that prevailed in the study area was a mosaic of pastures and crops (MPC), at 30.1%. The moisture values were lower in the area planted with eucalyptus. The PR showed greater spatial dependence at a greater depth, while the moisture presented a moderate dependence at different depths. |
| publisher |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias |
| publishDate |
2016 |
| url |
https://revistas.unal.edu.co/index.php/agrocol/article/view/59984 |
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