USE OF THE JONASSON’S MODEL TO ESTIMATE THE VAN GENUCHTEN PARAMETERS FROM TEXTURAL DATA OF SOME SOILS IN SOUTHERN ITALY

In the light of potential application of deducing soil water retention from some simply determined physical properties, due consideration was given to physical and empirical models in the literature, based on the transformation of a granulometric curve PSD into a retention curve θ(h). In particular,...

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Main Authors: Alessandro Comegna, Angelo Sommella, Gerardo Severino
Format: Article
Language:English
Published: PAGEPress Publications 2007-03-01
Series:Journal of Agricultural Engineering
Subjects:
Online Access:http://www.agroengineering.org/index.php/jae/article/view/91
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spelling doaj-441c4a6fafa147f89c1b18ad71ada6042020-11-25T03:19:05ZengPAGEPress PublicationsJournal of Agricultural Engineering1974-70712239-62682007-03-013811610.4081/jae.2007.1.182USE OF THE JONASSON’S MODEL TO ESTIMATE THE VAN GENUCHTEN PARAMETERS FROM TEXTURAL DATA OF SOME SOILS IN SOUTHERN ITALYAlessandro ComegnaAngelo SommellaGerardo SeverinoIn the light of potential application of deducing soil water retention from some simply determined physical properties, due consideration was given to physical and empirical models in the literature, based on the transformation of a granulometric curve PSD into a retention curve θ(h). In particular, forecasting po- 5 tentials as proposed by Jonasson’s model were evaluated in 15 soils from Southern Italy. The estimated θ(h) curves provided a good reliability only when the weighing factor Wf was optimised. Even if the results obtained should be further verified in soils having different pedological characteristics, the model, used, may be particularly suitable to determine θ(h) curves, when experimental observations are poor or lack.http://www.agroengineering.org/index.php/jae/article/view/91particle-size distribution, water retention curve, predictive model.
collection DOAJ
language English
format Article
sources DOAJ
author Alessandro Comegna
Angelo Sommella
Gerardo Severino
spellingShingle Alessandro Comegna
Angelo Sommella
Gerardo Severino
USE OF THE JONASSON’S MODEL TO ESTIMATE THE VAN GENUCHTEN PARAMETERS FROM TEXTURAL DATA OF SOME SOILS IN SOUTHERN ITALY
Journal of Agricultural Engineering
particle-size distribution, water retention curve, predictive model.
author_facet Alessandro Comegna
Angelo Sommella
Gerardo Severino
author_sort Alessandro Comegna
title USE OF THE JONASSON’S MODEL TO ESTIMATE THE VAN GENUCHTEN PARAMETERS FROM TEXTURAL DATA OF SOME SOILS IN SOUTHERN ITALY
title_short USE OF THE JONASSON’S MODEL TO ESTIMATE THE VAN GENUCHTEN PARAMETERS FROM TEXTURAL DATA OF SOME SOILS IN SOUTHERN ITALY
title_full USE OF THE JONASSON’S MODEL TO ESTIMATE THE VAN GENUCHTEN PARAMETERS FROM TEXTURAL DATA OF SOME SOILS IN SOUTHERN ITALY
title_fullStr USE OF THE JONASSON’S MODEL TO ESTIMATE THE VAN GENUCHTEN PARAMETERS FROM TEXTURAL DATA OF SOME SOILS IN SOUTHERN ITALY
title_full_unstemmed USE OF THE JONASSON’S MODEL TO ESTIMATE THE VAN GENUCHTEN PARAMETERS FROM TEXTURAL DATA OF SOME SOILS IN SOUTHERN ITALY
title_sort use of the jonasson’s model to estimate the van genuchten parameters from textural data of some soils in southern italy
publisher PAGEPress Publications
series Journal of Agricultural Engineering
issn 1974-7071
2239-6268
publishDate 2007-03-01
description In the light of potential application of deducing soil water retention from some simply determined physical properties, due consideration was given to physical and empirical models in the literature, based on the transformation of a granulometric curve PSD into a retention curve θ(h). In particular, forecasting po- 5 tentials as proposed by Jonasson’s model were evaluated in 15 soils from Southern Italy. The estimated θ(h) curves provided a good reliability only when the weighing factor Wf was optimised. Even if the results obtained should be further verified in soils having different pedological characteristics, the model, used, may be particularly suitable to determine θ(h) curves, when experimental observations are poor or lack.
topic particle-size distribution, water retention curve, predictive model.
url http://www.agroengineering.org/index.php/jae/article/view/91
work_keys_str_mv AT alessandrocomegna useofthejonassonsmodeltoestimatethevangenuchtenparametersfromtexturaldataofsomesoilsinsouthernitaly
AT angelosommella useofthejonassonsmodeltoestimatethevangenuchtenparametersfromtexturaldataofsomesoilsinsouthernitaly
AT gerardoseverino useofthejonassonsmodeltoestimatethevangenuchtenparametersfromtexturaldataofsomesoilsinsouthernitaly
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