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Memorias de investigación
Artículos en revistas:
Effects of tillage on variability in soil penetration resistance in an olive orchard
Año:2017
Áreas de investigación
  • Agricultura
Datos
Descripción
Spatial variability of soil properties such as soil structure and soil penetrometer resistance (SPR) is relevant for identifying those zones with physical degradation. We used classical statistical and multifractal analyses for characterising the spatial patterns of SPR distributions and compared them at different soil depths to investigate the tillage effect in soil compaction. The study was conducted on an Ochrept dedicated to olive orchards for the last 70 years. Two parallel transects of 64m were selected as different soil-management plots: conventional tillage and no tillage. Penetrometer resistance readings were carried out at 50-cm intervals within the first 20cm of soil depth. Two-way analysis of variance (ANOVA) highlighted that tillage system, soil depth and their interaction were statistically significant to explain the variance of SPR data from 5 to 20cm soil depth. The scaling properties of each SPR profile were characterised by ?(q) function, calculated in the range of moment orders (q) between -5 and +5 taken at 0.5 lag increments. Several parameters were calculated from this: the singularities of strength (?); the Hausdorff dimension (f(?)); entropy dimension (?1); and their multifractal spectrum, i.e. graph ? v. f(?). Multifractal scaling was evident and added valuable information to describe the spatial arrangement of depth-dependent penetrometer datasets in all soil layers, which was complementary to the ANOVA results.
Internacional
Si
JCR del ISI
Si
Título de la revista
SOIL RESEARCH
ISSN
1838-675X
Factor de impacto JCR
1,32
Información de impacto
Volumen
54
DOI
10.1071/SR15046
Número de revista
2
Desde la página
134
Hasta la página
143
Mes
SIN MES
Ranking
0
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Juan Lopez De Herrera (UPM)
  • Autor: Antonio Saa Requejo (UPM)
  • Autor: Ana Maria Tarquis Alfonso (UPM)
  • Autor: Tomas Ramon Herrero Tejedor (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM). Centro Mixto UPM-AGROMUTUA-ENESA
  • Departamento: Producción Agraria
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