C. Hahn
A comparison of three simple approaches to identify critical areas for runoff and dissolved reactive phosphorus losses
Hahn, C.; Prasuhn, V.; Stamm, C.; Milledge, D.G.; Schulin, R.
Authors
V. Prasuhn
C. Stamm
D.G. Milledge
R. Schulin
Abstract
Diffuse phosphorus (P) losses are the main cause for eutrophication of surface waters in many regions. Implementing mitigation measures on critical source areas (CSAs) is seen to be the most effective way to reduce P losses. Thus, tools are needed that delineate CSAs on the basis of available data. We compared three models based on different approaches and sets of input data: the rainfall-runoff-phosphorus (RRP) model, the dominant runoff processes (DoRP) model, and the Sensitive Catchment Integrated Modeling Analysis Platform (SCIMAP). The RRP model is a parsimonious dynamic model using the topographic index and a binary soil classification to simulate discharge and P losses. The DoRP model distinguishes eight soil classes based on soil and geological maps. It does not account for topography when calculating runoff. SCIMAP assesses runoff risks solely on the basis of topography using the network index. Compared to surface runoff and soil moisture data available from a catchment in Switzerland, the RRP model and SCIMAP made better predictions than the DoRP model, suggesting that in our study area topography was more important for CSA delineation than soil data. Based on the results, we suggest improvements of SCIMAP to enable average risk predictions and the comparison of risk predictions between catchments.
Citation
Hahn, C., Prasuhn, V., Stamm, C., Milledge, D., & Schulin, R. (2014). A comparison of three simple approaches to identify critical areas for runoff and dissolved reactive phosphorus losses. Hydrology and Earth System Sciences, 18(8), 2975-2991. https://doi.org/10.5194/hess-18-2975-2014
Journal Article Type | Article |
---|---|
Publication Date | Aug 13, 2014 |
Deposit Date | Nov 13, 2014 |
Publicly Available Date | Dec 1, 2014 |
Journal | Hydrology and Earth System Sciences |
Print ISSN | 1027-5606 |
Electronic ISSN | 1607-7938 |
Publisher | Copernicus Publications |
Peer Reviewed | Peer Reviewed |
Volume | 18 |
Issue | 8 |
Pages | 2975-2991 |
DOI | https://doi.org/10.5194/hess-18-2975-2014 |
Files
Published Journal Article
(3.8 Mb)
PDF
Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Copyright Statement
© Author(s) 2014. This work is distributed under the Creative Commons Attribution 3.0 License.
You might also like
Population density controls on microbial pollution across the Ganga catchment
(2017)
Journal Article
Earthquake science in DRR policy and practice in Nepal
(2016)
Working Paper
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search