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Daily Based Morgan–Morgan–Finney (DMMF) Model : A Spatially Distributed Conceptual Soil Erosion Model to Simulate Complex Soil Surface Configurations

DOI zum Zitieren dieses Dokuments: https://doi.org/10.3390/w9040278

Title data

Choi, Kwanghun ; Arnhold, Sebastian ; Huwe, Bernd ; Reineking, Björn:
Daily Based Morgan–Morgan–Finney (DMMF) Model : A Spatially Distributed Conceptual Soil Erosion Model to Simulate Complex Soil Surface Configurations.
In: Water. Vol. 9 (2017) Issue 4 . - No. 278.
ISSN 2073-4441
DOI: https://doi.org/10.3390/w9040278

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Abstract

In this paper, we present the Daily based Morgan–Morgan–Finney model. The main processes in this model are based on the Morgan–Morgan–Finney soil erosion model, and it is suitable for estimating surface runoff and sediment redistribution patterns in seasonal climate regions with complex surface configurations. We achieved temporal flexibility by utilizing daily time steps, which is suitable for regions with concentrated seasonal rainfall. We introduce the proportion of impervious surface cover as a parameter to reflect its impacts on soil erosion through blocking water infiltration and protecting the soil from detachment. Also, several equations and sequences of sub-processes are modified from the previous model to better represent physical processes. From the sensitivity analysis using the Sobol’ method, the DMMF model shows the rational response to the input parameters which is consistent with the result from the previous versions. To evaluate the model performance, we applied the model to two potato fields in South Korea that had complex surface configurations using plastic covered ridges at various temporal periods during the monsoon season. Our new model shows acceptable performance for runoff and the sediment loss estimation ( NSE≥0.63 , |PBIAS|≤17.00 , and RSR≤0.57 ). Our findings demonstrate that the DMMF model is able to predict the surface runoff and sediment redistribution patterns for cropland with complex surface configurations.

Further data

Item Type: Article in a journal
Additional notes (visible to public): BAYCEER140451
BAYCEER141157
Keywords: Runoff estimation; Sediment redistribution; Impervious area; Monsoon rainfall; Plastic mulching
DDC Subjects: 500 Science
500 Science > 550 Earth sciences, geology
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Professorship Soil Physics - Univ.-Prof. Dr. Bernd Huwe
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Ecological Services
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Junior Professorship Biogeographical Modelling - Juniorprof. Dr. Björn Reineking
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Language: English
Originates at UBT: Yes
Date Deposited: 02 Jun 2017 09:57
Last Modified: 13 Jul 2018 11:14
URI: https://epub.uni-bayreuth.de/id/eprint/3718

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