Choi, K; Arnhold, S; Huwe, B; Reineking, B: Daily Based Morgan–Morgan–Finney (DMMF) Model: A Spatially Distributed Conceptual Soil Erosion Model to Simulate Complex Soil Surface Configurations, Water, 9(4), 278 (2017), doi:10.3390/w9040278
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.
Upcoming ...


BayCEER Colloquium:
Th. 2024-04-18
The Canvas of Change: Creative Marketing for Behaviour Change, Sustainability and Social Good
Th. 2024-04-18
Survival, 'dormancy', and resuscitation of microorganisms in water-limited environments: insights from coastal salt flats and desert soil crusts
BayCEER Short Courses:
Tu. 2024-04-16
Geographical information system and R environment for conservation biology
Ecological-Botanical Garden:
Su. 2024-04-07
Führung | Talking Tree: Was Bäume über´s Klima erzählen
Fr. 2024-04-19
Führung | Gesteine im Ökologisch-Botanischen Garten
Weather research site
Luftdruck (356m): 949.8 hPa
Lufttemperatur: 7.5 °C
Niederschlag: 5.2 mm/24h
Sonnenschein: 2 h/d

...more
Globalstrahlung: 163 W/m²
Lufttemperatur: 4.4 °C
Niederschlag: 3.6 mm/24h
Wind (Höhe 32m): 21.5 km/h

...more
This site makes use of cookies More information