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Verlagsausgabe
DOI: 10.5445/IR/1000082489
Veröffentlicht am 09.08.2018
Originalveröffentlichung
DOI: 10.2136/vzj2017.08.0147
Scopus
Zitationen: 1

Impact of Temporal Macropore Dynamics on Infiltration : Field Experiments and Model Simulations

Reck, Arne; Jackisch, Conrad; Hohenbrink, Tobias L.; Schröder, Boris; Zangerlé, Anne; Schaik, Loes van

Abstract:
Macropores greatly affect water and solute transport in soils. Most macropores are of biogenic origin; however, the resulting seasonal dynamics are often neglected. Our study aimed to examine temporal changes in biopore networks and the resulting infiltration patterns. We performed infiltration experiments with Brilliant Blue on pastureland in the Luxembourgian Attert catchment (spring, summer, and autumn 2015). We developed an image-processing scheme to identify and quantify changes in biopores and infiltration patterns. Subsequently, we used image-derived biopore metrics to parameterize the ecohydrological model echoRD (ecohydrological particle model based on representative domains), which includes explicit macropore flow and interaction with the soil matrix. We used the model simulations to check whether biopore dynamics affect infiltration. The observed infiltration patterns revealed variations in both biopore numbers and biopore–matrix interaction. The field-observed biopore numbers varied over time, mainly in the topsoil, with the largest biopore numbers in spring and the smallest in summer. The number of hydrologically effect ... mehr


Zugehörige Institution(en) am KIT Institut für Wasser und Gewässerentwicklung (IWG)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1539-1663
URN: urn:nbn:de:swb:90-824894
KITopen ID: 1000082489
Erschienen in Vadose zone journal
Band 17
Heft 1
Seiten Art.Nr. 170147
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