In: Journal of Hydrology and Hydromechanics, vol. 65, no. 2
Jana Votrubova - Michal Dohnal - Tomas Vogel - Martin Sanda - Miroslav Tesar
Detaily:
Rok, strany: 2017, 114 - 122
Kľúčové slová:
18O isotope; Headwater catchment runoff; Subsurface runoff; Tracer; Rainfall-runoff episodes.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
Hydrological monitoring in small headwater catchments provides the basis for examining complex
interrelating hydraulic processes that govern the runoff generation. Contributions of different subsurface runoff mechanisms
to the catchment discharge formation at two small forested headwater catchments are studied with the help of their
natural isotopic signatures. The Uhlirska catchment (Jizera Mts., Czech Republic) is situated in headwater area of the
Lusatian Neisse River. The catchment includes wetlands at the valley bottom developed over deluviofluvial granitic
sediments surrounded by gentle hillslopes with shallow soils underlain by weathered granite. The Liz catchment (Bohemian
Forest, Czech Republic) is situated in headwater area of the Otava River. It belongs to hillslope-type catchments
with narrow riparian zones. The soil at Liz is developed on biotite paragneiss bedrock. The basic comparison of hydrological
time series reveals that the event-related stream discharge variations at the Uhlirska catchment are bigger and significantly
more frequent than at Liz. The analysis of isotope concentration data revealed different behavior of the two
catchments during the major rainfall-runoff events. At Uhlirska, the percentage of the direct runoff formed by the event
water reaches its maximum on the falling limb of the hydrograph. At Liz, the event water related fraction of the direct
outflow is maximal on the rising limb of the hydrograph and then lowers. The hydraulic functioning of the Uhlirska
catchment is determined by communication between hillslope and riparian zone compartments.
Ako citovať:
ISO 690:
Votrubova, J., Dohnal, M., Vogel, T., Sanda, M., Tesar, M. 2017. Episodic runoff generation at Central European headwater catchments studied
using water isotope concentration signals. In Journal of Hydrology and Hydromechanics, vol. 65, no.2, pp. 114-122. 0042-790X (until 2019) .
APA:
Votrubova, J., Dohnal, M., Vogel, T., Sanda, M., Tesar, M. (2017). Episodic runoff generation at Central European headwater catchments studied
using water isotope concentration signals. Journal of Hydrology and Hydromechanics, 65(2), 114-122. 0042-790X (until 2019) .