Effects of tillage on variability in soil penetration resistance in an olive orchard

López de Herrera, Juan and Herrero Tejedor, Tomas Ramón and Saa Requejo, Antonio and Tarquis Alfonso, Ana Maria (2016). Effects of tillage on variability in soil penetration resistance in an olive orchard. "Soil Research", v. 54 (n. 2); pp. 134-143. ISSN 1838-675X. https://doi.org/10.1071/SR15046.

Description

Title: Effects of tillage on variability in soil penetration resistance in an olive orchard
Author/s:
  • López de Herrera, Juan
  • Herrero Tejedor, Tomas Ramón
  • Saa Requejo, Antonio
  • Tarquis Alfonso, Ana Maria
Item Type: Article
Título de Revista/Publicación: Soil Research
Date: March 2016
ISSN: 1838-675X
Volume: 54
Subjects:
Freetext Keywords: ANOVA; multifractal analysis; olive orchard; soil degradation
Faculty: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Department: Ingeniería Agroforestal
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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 τ(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 (α); the Hausdorff dimension (f(α)); entropy dimension (α1); and their multifractal spectrum, i.e. graph α v. f(α). 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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainPCIN-2014-080TALEUnspecifiedTowards multifunctional agricultural landscapes in Europe: Assessing and governing synergies between food production, biodiversity, and ecosystem services

More information

Item ID: 65890
DC Identifier: http://oa.upm.es/65890/
OAI Identifier: oai:oa.upm.es:65890
DOI: 10.1071/SR15046
Official URL: https://www.publish.csiro.au/sr/SR15046
Deposited by: Memoria Investigacion
Deposited on: 26 Jan 2021 08:20
Last Modified: 26 Jan 2021 08:20
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