<abstract xmlns="http://www.w3.org/1999/xhtml">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 <italic>in situ</italic> 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 (<italic>Pinus pinaster</italic> at CiF) and severe (<italic>Pinus sylvestris</italic> at CuD and SeF) SWR conditions were observed. <italic>Pinus halepensis</italic> trees induced slight SWR at JaF site. RI and RIc increased in the order: JaF &lt; CuF &lt; CiF &lt; CuD &lt; 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.</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.

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

Dipartimento di Scienze Agrarie, Alimentari e Forestali

Slovak Academy of Sciences, Institute of Hydrology

Institute of Biological & Environmental Sciences

Faculty of Mathematics, Physics and Informatics

Departamento de Agroquímica y Medio Ambiente

Department of Soil Science and Soil Ecology, Institute of Geography

Journal of Hydrology and Hydromechanics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The extent (determined by the repellency indices RI and RIc) and persistence (determined by the water drop penetration time, WDPT) of soil water repellency...

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

Pubblicato online: 29 ott 2018

Pagine: 360 - 368

Ricevuto: 22 gen 2018

Accettato: 17 mag 2018

DOI: https://doi.org/10.2478/johh-2018-0024

Parole chiave
Pine, Soil, Water repellency, Water drop penetration time, Repellency index

© 2018 Massimo Iovino et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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

Pubblicato online: 29 ott 2018

Pagine: 360 - 368

Ricevuto: 22 gen 2018

Accettato: 17 mag 2018

DOI: https://doi.org/10.2478/johh-2018-0024

Parole chiavePine, Soil, Water repellency, Water drop penetration time, Repellency index

© 2018 Massimo Iovino et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
Pine, Soil, Water repellency, Water drop penetration time, Repellency index