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Volume 4, 2009 - Number 2
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IMPLEMENTATION OF THE USLE MODEL USING GIS TECHNIQUES. CASE STUDY THE SOMEŞEAN PLATEAU
Ştefan BILAŞCO1, Csaba HORVATH1, Pompei COCEAN2, Victor SOROCOVSCHI1 & Marcel ONCU2
1Academia Română – Filiala Cluj Colectivul de Geografie; sbilasco@geografie.ubbcluj.ro; hcs1000@yahoo.com; svictor@geografie.ubbcluj.ro 2 Universitatea Babeş-Bolyai, Facultatea de Geografie; pompei@geografie.ubbcluj.ro; oncu@geografie.ubbcluj.ro IMPLEMENTATION OF THE USLE MODEL USING GIS TECHNIQUES. CASE STUDY THE SOMEŞEAN PLATEAU Full text
Abstract:
The soil erosion process is influenced by a series of geomorphological factors like the slope length and the slope steepness, by the climatical and soil characteristics and also by the land cover management. This study proposes a GIS based model for the computation and representation of areas, which are exposed to soil erosion from the Someşean Plateau. In the implementation process of the USLE (Universal Soil Erosion Model) model, we created a vector and raster GIS database covering the studied geographic unit, using specific spatial analysis methods and database interrogations for the quantitative estimation of the eroded soil volume regarding the whole area and also the regional subunits. The validation and emphasize of each USLE factor influence on the soil erosion process was made with the help of profiles and comparative analyses between each other. After we analyzed the results of the model and we compared the results with the existent soil erosion values, at national and local scale, we can say that the results of the USLE model are veridical and that the model can be used with success in the studied area. |
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