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| Titel |
Recurring fingered flow pathways in a water repellent sandy field soil |
| VerfasserIn |
C. J. Ritsema, L. W. Dekker, E. G. M. Elsen, K. Oostindiel, T. S. Steenhuis, J. L. Nieber |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 1, no. 4 ; Nr. 1, no. 4, S.777-786 |
| Datensatznummer |
250000233
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| Publikation (Nr.) |
 copernicus.org/hess-1-777-1997.pdf |
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| Zusammenfassung |
| Field evidence of finger formation and reformation
during Successive rain events over an eight months' observation period from June 1994 until January 1995 is presented.
Fingered flow pathways were monitored in a no-tilled, grass-covered water repellent
sandy field soil using an automated, stand-alone TDR device. Within a 2 m long and 0.7 m deep
transect, 98 three-wire probes were installed horizontally at depths of 4, 12, 20, 30, 40,
55, and 70 cm. The horizontal distance between two adjacent probes was IS cm. Finger formation occurred
during distinct rainy periods and was most pronounced under heavy rainfall with initially
wet topsoil conditions. The percentage of water infiltrated and transported preferentially
through the fingers to the deep subsoil varied between 0 and 80%, depending on the wetting history
of the soil and the rainfall characteristics. |
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