Modelling water, nutrients, and organic carbon in forested catchments: a HYPE application

Pers, Charlotta; Temnerud, Johan; Lindstroem, Goeran

doi:10.1002/hyp.10830

Research article2016Peer reviewedOpen access

Modelling water, nutrients, and organic carbon in forested catchments: a HYPE application

Pers, Charlotta; Temnerud, Johan; Lindstroem, Goeran

Abstract

Both monitoring and model simulation are useful for understanding and detecting changes in the environment. To understand and simulate leaching in small forested catchments, it is important to have knowledge of soil processes. Here, we describe recent development of the Hydrological Predictions for the Environment (HYPE) model for forested catchments. HYPE includes an organic carbon (OC) variable in addition to previously published nitrogen (N), phosphorus (P), and water flow models. The aspects addressed in the current study included P concentrations under low-flow conditions and high concentrations of inorganic N. HYPE was further developed based on nine small forested catchments (0.5-200ha) in Sweden, which were calibrated separately using local data. The model (excluding the OC variable) was tested on a larger set of forest catchments from the operational HYPE model of Sweden (S-HYPE). We observed the following: (1) dissolved organic P could make a significant contribution to the total P concentration in a stream during low-flow periods, (2) the inorganic N concentration simulated in a stream improved when part of the atmospheric N was retained in the soil, (3) the soil flow path formulation was critical for simulating concentration dynamics, and (4) evaluating an additional variable (OC) further elucidated the soil runoff processes in the model. Copyright (c) 2016 Swedish Meteorological and Hydrological Institute. Hydrological Processes published by John Wiley & Sons, Ltd.

Keywords

catchment; nutrients; organic carbon; HYPE; multi-basin calibration; soil processes

Published in

Hydrological Processes
2016, volume: 30, number: 18, pages: 3252-3273
Publisher: WILEY-BLACKWELL

SLU Authors

Temnerud, Johan
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Swedish Meteorological and Hydrological Institute (SMHI)

Global goals (SDG)

SDG6 Clean water and sanitation

UKÄ Subject classification

Oceanography, Hydrology, Water Resources

Publication identifier

DOI: https://doi.org/10.1002/hyp.10830

Permanent link to this page (URI)

https://res.slu.se/id/publ/82656