Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Attempt of a flux-based evaluation of field capacity
Autor Zacharias, S.; Bohne, K.
Journal / Serie Journal of Plant Nutrition and Soil Science
Erscheinungsjahr 2008
Department MET
Band/Volume 171
Heft 3
Seite von 399
Seite bis 408
Sprache englisch
Keywords soil physics; soil water budget; internal drainage; water retention; unsaturated flow; field capacity
Abstract Field capacity is one of the most frequently used soil parameters. According to the original definition, the field capacity is a site-specific parameter, which is closely connected to soil water flux. Many of the existing procedures for field-capacity estimation neglect its flux-based character. In this study, a method and selected results are presented. This allows a better reflection of the unsteady behavior of unsaturated water flow in estimating field capacity. Based on the velocity of the relative internal drainage, a threshold value is defined (field-capacity threshold) which enables a flux-based estimation of the field-capacity value. Furthermore, the direct consideration of the drainage time allows the soil water contents to be estimated for defined internal drainage durations.
dauerhafte UFZ-Verlinkung
Zacharias, S., Bohne, K. (2008):
Attempt of a flux-based evaluation of field capacity
J. Plant Nutr. Soil Sci. 171 (3), 399 - 408