Please use this identifier to cite or link to this item: https://hdl.handle.net/11000/5254

Extent and persistence of soil water repellency induced by pines in different geographic regions


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Title:
Extent and persistence of soil water repellency induced by pines in different geographic regions
Authors:
Iovino, Massimo
Pekárová, Pavla
Hallett, Paul D.
Pekár, Ján
Lichner, Ľubomír
Mataix Solera, Jorge
Alagna, Vincenzo
Walsh, Richard
Raffan, Annette
Schacht, Karsten
Rodný, Marek
Department:
Departamentos de la UMH::Agroquímica y Medio Ambiente
Issue Date:
2018-10-29
Abstract:
The extent (determined by the repellency indices RI and RIc) and persistence (determined by the water drop penetration time, WDPT) of soil water repellency (SWR) induced by pines were assessed in vastly different geographic regions. The actual SWR characteristics were estimated in situ in clay loam soil at Ciavolo, Italy (CiF), sandy soil at Culbin, United Kingdom (CuF), silty clay soil at Javea, Spain (JaF), and sandy soil at Sekule, Slovakia (SeF). For Culbin soil, the potential SWR characteristics were also determined after oven-drying at 60°C (CuD). For two of the three pine species considered, strong (Pinus pinaster at CiF) and severe (Pinus sylvestris at CuD and SeF) SWR conditions were observed. Pinus halepensis trees induced slight SWR at JaF site. RI and RIc increased in the order: JaF < CuF < CiF < CuD < SeF, reflecting nearly the same order of WDPT increase. A lognormal distribution fitted well to histograms of RIc data from CuF and JaF, whereas CiF, CuD and SeF had multimodal distributions. RI correlated closely with WDPT, which was used to develop a classification of RI that showed a robust statistical agreement with WDPT classification according to three different versions of Kappa coefficient
Keywords/Subjects:
Pine
Soil
Water repellency
Water drop penetration time
Repellency index
Type of document:
application/pdf
Access rights:
info:eu-repo/semantics/openAccess
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