Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils

Assessment of soil water repellency (SWR) was conducted in the decomposed organic floor layer (duff) and in the mineral soil layer of two Mediterranean pine forests, one in Italy and the other in Spain, by the widely-used water drop penetration time (WDPT) test and alternative indices derived from i...

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Authors: Alagna, Vincenzo, Iovino, Massimo, Bagarello, Vincenzo, Mataix-Solera, Jorge, Lichner, Ľubomír
Format: article
Publication Date:2017
Country:España
Institution:Universidad Miguel Hernández de Elche
Repository:REDIUMH. Depósito Digital de la UMH
OAI Identifier:oai:dspace.umh.es:11000/5255
Online Access:http://hdl.handle.net/11000/5255
Access Level:Open access
Keyword:Pine forest
Soil water repellency
Minidisk infiltrometer
Modified repellency index
631 - Agricultura. Agronomía. Maquinaria agrícola. Suelos. Edafología agrícola
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spelling Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soilsAlagna, VincenzoIovino, MassimoBagarello, VincenzoMataix-Solera, JorgeLichner, ĽubomírPine forestSoil water repellencyMinidisk infiltrometerModified repellency index631 - Agricultura. Agronomía. Maquinaria agrícola. Suelos. Edafología agrícolaAssessment of soil water repellency (SWR) was conducted in the decomposed organic floor layer (duff) and in the mineral soil layer of two Mediterranean pine forests, one in Italy and the other in Spain, by the widely-used water drop penetration time (WDPT) test and alternative indices derived from infiltration experiments carried out by the minidisk infiltrometer (MDI). In particular, the repellency index (RI) was calculated as the adjusted ratio between ethanol and water soil sorptivities whereas the water repellency cessation time (WRCT) and the specifically proposed modified repellency index (RIm) were derived from the hydrophobic and wettable stages of a single water infiltration experiment. Time evolution of SWR and vegetation cover influence was also investigated at the Italian site. All indices unanimously detected severe SWR conditions in the duff of the pine forests. The mineral subsoils in the two forests showed different wettability and the clay-loam subsoil at Ciavolo forest was hydrophobic even if characterized by organic matter (OM) content similar to the wettable soil of an adjacent glade. It was therefore assumed that the composition rather than the total amount of OM influenced SWR. The hydraulic conductivity of the duff differed by a factor of 3.8– 5.8 between the two forested sites thus influencing the vertical extent of SWR. Indeed, the mineral subsoil of Javea showed wettable or weak hydrophobic conditions probably because leaching of hydrophobic compounds was slowed or prevented at all. Estimations of SWR according to the different indices were in general agreement even if some discrepancies were observed. In particular, at low hydrophobicity levels the SWR indices gathered from the MDI tests were able to signal sub-critical SWR conditions that were not detected by the traditional WDPT index. The WRCT and modified repellency index RIm yielded SWR estimates in reasonable agreement with those obtained with the more cumbersome RI test and, therefore, can be proposed as alternative procedures for SWR assessmentThis study was supported by grants from the Università degli Studi di Palermo (project FFR 2012 and Dottorato di Ricerca in Scienze Agrarie, Forestali e Ambientali, ciclo XXIX, D50002D13+1012),the Slovak Scientific Grant Agency VEGA (project No. 2/0054/14),Ministerio de Economía and Competitividad of Spanish Government (project CGL2013- 47862-C2-1-R),Botánica Mediterránea S.L., and Montgó Natural Park. Field data in Italy and Spain were collected by V. AlagnaDepartamentos de la UMH::Agroquímica y Medio Ambiente2019201920172019info:eu-repo/semantics/articleapplication/pdf10application/pdfhttp://hdl.handle.net/11000/5255reponame:REDIUMH. Depósito Digital de la UMHinstname:Universidad Miguel Hernández de ElcheIngléshttp://dx.doi.org/0.1515/johh-2017-0009info:eu-repo/semantics/openAccessoai:dspace.umh.es:11000/52552026-05-27T13:36:21Z
dc.title.none.fl_str_mv Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils
title Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils
spellingShingle Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils
Alagna, Vincenzo
Pine forest
Soil water repellency
Minidisk infiltrometer
Modified repellency index
631 - Agricultura. Agronomía. Maquinaria agrícola. Suelos. Edafología agrícola
title_short Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils
title_full Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils
title_fullStr Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils
title_full_unstemmed Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils
title_sort Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils
dc.creator.none.fl_str_mv Alagna, Vincenzo
Iovino, Massimo
Bagarello, Vincenzo
Mataix-Solera, Jorge
Lichner, Ľubomír
author Alagna, Vincenzo
author_facet Alagna, Vincenzo
Iovino, Massimo
Bagarello, Vincenzo
Mataix-Solera, Jorge
Lichner, Ľubomír
author_role author
author2 Iovino, Massimo
Bagarello, Vincenzo
Mataix-Solera, Jorge
Lichner, Ľubomír
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamentos de la UMH::Agroquímica y Medio Ambiente
dc.subject.none.fl_str_mv Pine forest
Soil water repellency
Minidisk infiltrometer
Modified repellency index
631 - Agricultura. Agronomía. Maquinaria agrícola. Suelos. Edafología agrícola
topic Pine forest
Soil water repellency
Minidisk infiltrometer
Modified repellency index
631 - Agricultura. Agronomía. Maquinaria agrícola. Suelos. Edafología agrícola
description Assessment of soil water repellency (SWR) was conducted in the decomposed organic floor layer (duff) and in the mineral soil layer of two Mediterranean pine forests, one in Italy and the other in Spain, by the widely-used water drop penetration time (WDPT) test and alternative indices derived from infiltration experiments carried out by the minidisk infiltrometer (MDI). In particular, the repellency index (RI) was calculated as the adjusted ratio between ethanol and water soil sorptivities whereas the water repellency cessation time (WRCT) and the specifically proposed modified repellency index (RIm) were derived from the hydrophobic and wettable stages of a single water infiltration experiment. Time evolution of SWR and vegetation cover influence was also investigated at the Italian site. All indices unanimously detected severe SWR conditions in the duff of the pine forests. The mineral subsoils in the two forests showed different wettability and the clay-loam subsoil at Ciavolo forest was hydrophobic even if characterized by organic matter (OM) content similar to the wettable soil of an adjacent glade. It was therefore assumed that the composition rather than the total amount of OM influenced SWR. The hydraulic conductivity of the duff differed by a factor of 3.8– 5.8 between the two forested sites thus influencing the vertical extent of SWR. Indeed, the mineral subsoil of Javea showed wettable or weak hydrophobic conditions probably because leaching of hydrophobic compounds was slowed or prevented at all. Estimations of SWR according to the different indices were in general agreement even if some discrepancies were observed. In particular, at low hydrophobicity levels the SWR indices gathered from the MDI tests were able to signal sub-critical SWR conditions that were not detected by the traditional WDPT index. The WRCT and modified repellency index RIm yielded SWR estimates in reasonable agreement with those obtained with the more cumbersome RI test and, therefore, can be proposed as alternative procedures for SWR assessment
publishDate 2017
dc.date.none.fl_str_mv 2017
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/11000/5255
url http://hdl.handle.net/11000/5255
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/0.1515/johh-2017-0009
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
10
application/pdf
dc.source.none.fl_str_mv reponame:REDIUMH. Depósito Digital de la UMH
instname:Universidad Miguel Hernández de Elche
instname_str Universidad Miguel Hernández de Elche
reponame_str REDIUMH. Depósito Digital de la UMH
collection REDIUMH. Depósito Digital de la UMH
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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