Fleckenstein, JH; Frei, S; Knorr, KH: Modelling interactions between hydrologic dynamics and biogeochemical processes in a riparian wetland of a low-order stream, IAHS Red Book(345), 89-92 (2011)
Abstract:
Low order streams often show complex, nonlinear relationships between hydrologic conditions in the riparian zone, streamflow generation and the chemical signature of the stream water. Dynamic surface and subsurface flow paths create a mosaic of biogeochemical conditions that affect the transformation and export of solutes. These relationships are explored in a virtual modelling study of a riparian wetland that links an integrated surface–subsurface flow model with a stream tube approach for biogeochemical reactions along individual flow paths. It is shown that the interplay between water table depth and surface micro-topography in the riparian zone results in distinct shifts between surface and subsurface flow dominance and the development of specific surface flow connectivity. Distinct nonlinear relationships between water table depth and stream discharge that reproduce relationships observed in the field were found. Simulated hydrologic dynamics and the resulting flow paths result in biogeochemical patterns in the riparian zone that are congruent with patterns observed in the field.
Aktuelle Termine

BayCEER-Kolloquium:
Do. 09.02.2023
Rising Novelty in Ecosystems and Climates
Do. 16.02.2023
What is diversification and how should we study it?
Ökologisch-Botanischer Garten:
So. 05.02.2023
Führung | Gin: Diese Pflanzen stecken drin
So. 05.02.2023
Eröffnung | "Faszination Natur - Malereien und Zeichnungen" - Gemeinschaftsausstellung
So. 12.02.2023
Eigentümlich fremd: Wie Neophyten unsere Vorstellungen von Natur provozieren
Wetter Versuchsflächen
Luftdruck (356m): 975.5 hPa
Lufttemperatur: 2.2 °C
Niederschlag: 0.8 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 10.3 km/h
Wind (Max.): 19.1 km/h
Windrichtung: SW

...mehr
Globalstrahlung: 0 W/m²
Lufttemperatur: -0.3 °C
Niederschlag: 1.5 mm/24h
Wind (Höhe 32m): 1.4 km/h

...mehr
Diese Webseite verwendet Cookies. weitere Informationen