| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Modelling preferential flow of water in soils : a two-phase approach for field conditions |
| Autor/-in: | Hosang, Jürg |
| DOI: | 10.1016/0016-7061(93)90039-N |
| Erschienen in: | Geoderma |
| Band(Heft): | 58 |
| Heft: | 3-4 |
| Seite(n): | 149 |
| Seiten bis: | 163 |
| Erscheinungsdatum: | Okt-1993 |
| Verlag / Hrsg. Institution: | Elsevier |
| ISSN: | 0016-7061 1872-6259 |
| Sprache: | Englisch |
| Schlagwörter: | Water; Transport; Soil |
| Fachgebiet (DDC): | 630: Landwirtschaft |
| Zusammenfassung: | A conceptual two-phase model for preferential flow of water through field soils is proposed. The first phase represents times of redistribution and low infiltration, which does not generate preferential flow. Times of heavy infiltration, inducing preferential flow, are handled by the second phase. The Richards equation is applied as the governing flow equation for both phases and preferential flow is allowed for by increasing the hydraulic conductivity of the soil during the second phase. The parameters of the model were estimated by use of different techniques, including a transient field experiment and the subsequent solution of the inverse problem. The model was tested and a reasonably good agreement between simulated and experimental data was obtained. When long-term effects of preferential flow, rather than an event-specific representation of the involved processes are in focus, the presented model seems to be an adequate approach. More specific parameter estimation techniques are a possibility to further improve the applicability of the model. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/6102 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institut für Datenanalyse und Prozessdesign (IDP) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
Dateien zu dieser Ressource:
Es gibt keine Dateien zu dieser Ressource.
Zur Langanzeige
Hosang, J. (1993). Modelling preferential flow of water in soils : a two-phase approach for field conditions. Geoderma, 58(3-4), 149–163. https://doi.org/10.1016/0016-7061(93)90039-N
Hosang, J. (1993) ‘Modelling preferential flow of water in soils : a two-phase approach for field conditions’, Geoderma, 58(3-4), pp. 149–163. Available at: https://doi.org/10.1016/0016-7061(93)90039-N.
J. Hosang, “Modelling preferential flow of water in soils : a two-phase approach for field conditions,” Geoderma, vol. 58, no. 3-4, pp. 149–163, Oct. 1993, doi: 10.1016/0016-7061(93)90039-N.
HOSANG, Jürg, 1993. Modelling preferential flow of water in soils : a two-phase approach for field conditions. Geoderma. Oktober 1993. Bd. 58, Nr. 3-4, S. 149–163. DOI 10.1016/0016-7061(93)90039-N
Hosang, Jürg. 1993. “Modelling Preferential Flow of Water in Soils : A Two-Phase Approach for Field Conditions.” Geoderma 58 (3-4): 149–63. https://doi.org/10.1016/0016-7061(93)90039-N.
Hosang, Jürg. “Modelling Preferential Flow of Water in Soils : A Two-Phase Approach for Field Conditions.” Geoderma, vol. 58, no. 3-4, Oct. 1993, pp. 149–63, https://doi.org/10.1016/0016-7061(93)90039-N.
Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt, soweit nicht anderweitig angezeigt.