Prediction of water erosion and its evaluation using CORINE model and comparison with ICONA method in Talesh city

Soil erosion is one of the environmental hazards. The aim of this study was to predict water erosion and evaluate it with CORINE and ICONA models in the study area of ​​Talesh city. In CORINE model, parameters such as topography, erodibility, erosion and land use and vegetation are required, and in ICONA model, slope, geology, land use, vegetation are required. The results showed that the highest area in the erosion risk map of ۲۰۰۰ is the CORINE model of the middle erosion class with an area of ​​۶۳.۲۲%. In ۲۰۲۰, the highest area is related to high erosion class with an area of ​​۴۵.۶۷%. These areas are seen in the western, eastern and central parts of the range. The results of the ICONA model for the period ۲۰۰۰ to ۲۰۲۰ showed that the high and very high risk classes in ۲۰۰۰ were ۸.۰۱ and ۲.۳۱ percent, respectively, while in ۲۰۲۰ these figures reached ۸.۸۰ and ۳.۴۴ percent. The results of the evaluation of the final zoning of the erosion risk map of the area, the study area with terrestrial realities, showed that in the best case, the overall image zoning accuracy of ۲۰۰۰ and Landsat ۸ of ۲۰۲۰ CORINE model are equal to ۰.۸۷ and ۰.۹۱ and kappa coefficient of ۰.۸۶ and ۰.۸۹, respectively. It was estimated to be acceptable. In the ICONA model, the kappa coefficient and overall accuracy of ۲۰۰۰ were ۰.۸۵ and ۰.۸۶, and for ۲۰۲۰, ۰.۸۷ and ۰.۸۸, which were acceptable.

کلیدواژه ها:

Water Erosion ، CORINE model ، ICONA model ، Talesh city