Soil erosion analysis in a small forested catchment supported by ArcGIS Model Builder

Csáfordi Péter and Pődör Andrea and Bug J and Gribovszki Zoltán (2012) Soil erosion analysis in a small forested catchment supported by ArcGIS Model Builder. ACTA SILVATICA ET LIGNARIA HUNGARICA, 8. pp. 39-55. ISSN 1786-691X


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To implement the analysis of soil erosion with the USLE in a GIS environment, a new workflow has been developed with the ArcGIS Model Builder. The aim of this four-part workflow is to accelerate data processing and to ensure comparability of soil erosion risk maps. The first submodel generates the stream network with connected catchments, computes slope conditions and the LS factor in USLE based on the DEM. The second submodel integrates stream lines, roads, catchment boundaries, land cover, land use, and soil maps. This combined dataset is the basis for the preparation of other USLE-factors. The third submodel estimates soil loss, and creates zonal statistics of soil erosion. The fourth submodel classifies soil loss into categories enabling the comparison of modelled and observed soil erosion. The workflow was applied in a small forested catchment in Hungary. Although there is significant deviation between the erosion of different land covers, the predicted specific soil loss does not increase above the tolerance limit in any area unit. The predicted surface soil erosion in forest subcompartments mostly depends on the slope conditions.

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natural sciences > earth sciences


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Nyugat-Magyarországi Egyetem

Item Type: Article
Additional Information: FELTÖLTŐ: Tompáné Székely Zsófia -
SWORD Depositor: Sword Teszt
Depositing User: Tompa Zsófia
Identification Number: MTMT:2179072
Date Deposited: 2015. Mar. 27. 16:41
Last Modified: 2016. Aug. 02. 14:50

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