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Open AccessArticle

A Hydrological Concept including Lateral Water Flow Compatible with the Biogeochemical Model ForSAFE

1
Department of Physical Geography and Ecosystem Science, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden
2
Department of Physical Geography, Stockholm University, Svante Arrhenius väg 8, SE-114 18 Stockholm, Sweden
3
Centre for Environmental and Climate Research, Lund University, Sölvegatan 37, SE-223 62 Lund, Sweden
4
Department of Aquatic Sciences and Assessment, SLU, P.O. Box 7050, SE-750 07 Uppsala, Sweden
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Department of Forest Ecology and Management, SLU, Surbrunnsgatan 4, SE-114 27 Stockholm, Sweden
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Luca Brocca
Hydrology 2016, 3(1), 11; https://doi.org/10.3390/hydrology3010011
Received: 16 December 2015 / Revised: 17 February 2016 / Accepted: 26 February 2016 / Published: 4 March 2016
The study presents a hydrology concept developed to include lateral water flow in the biogeochemical model ForSAFE. The hydrology concept was evaluated against data collected at Svartberget in the Vindeln Research Forest in Northern Sweden. The results show that the new concept allows simulation of a saturated and an unsaturated zone in the soil as well as water flow that reaches the stream comparable to measurements. The most relevant differences compared to streamflow measurements are that the model simulates a higher base flow in winter and lower flow peaks after snowmelt. These differences are mainly caused by the assumptions made to regulate the percolation at the bottom of the simulated soil columns. The capability for simulating lateral flows and a saturated zone in ForSAFE can greatly improve the simulation of chemical exchange in the soil and export of elements from the soil to watercourses. Such a model can help improve the understanding of how environmental changes in the forest landscape will influence chemical loads to surface waters. View Full-Text
Keywords: hydrologic modeling; forest; Svartberget; transect; streamflow; soil moisture; storage; water balance hydrologic modeling; forest; Svartberget; transect; streamflow; soil moisture; storage; water balance
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MDPI and ACS Style

Zanchi, G.; Belyazid, S.; Akselsson, C.; Yu, L.; Bishop, K.; Köhler, S.J.; Grip, H. A Hydrological Concept including Lateral Water Flow Compatible with the Biogeochemical Model ForSAFE. Hydrology 2016, 3, 11.

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