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Mapping sediment mobilization risks:Prioritizing results obtained at watershed and sub-watershed scales

International Soil and Water Conservation Research 2024年第3期12卷 600-614页

作者： Ataollah Kavian seyedeh nastaran mirzaei Bahram Choubin Mahin Kalehhouei Jesús Rodrigo-Comino Department of Watershed Management Faculty of Natural ResourcesSari Agricultural Sciences and Natural Resources University(SANRU)Sari48181-68984Iran West Azarbajan Agricultural and Natural Resources Research and Education Center Soil Conservation and Watershed Management Research DepartmentAREEoUrmiaIran Department of Watershed Management Sciences and Engineering Faculty of Natural ResourcesTarbiat Modares University(TMU)NourMazandaranIran Departamento de Analisis Geografico Regional y Geografia Fisica Facultad de Filosofia y LetrasCampus Universitario de CartujaUniversity of Granada18071GranadaSpain

Soils are key natural resources for the Earth's system;however,human impacts,especially,soil erosion are considered serious ***,identifying and assessing effective factors to understand erosion hot spots at different scales is critical to developing effective land management plans and ensuring the sustainability of the *** study was conducted to determine and prepare an erosion risk map,but to prioritize the survey at different scales,such as sub-basin and watershed *** achieve this goal,geographic information system(GIS)and remote sensing data(RS)were used combining the analysis network process method(ANP)and ICONA model(Institute for the Conservation of Nature).As study case,we selected the degraded areas of the Gorganrood watershed located in the north of *** study area was obtained for very low,low,medium,high,and very high-risk classi-fications of 14.0,21.4,17.9,31.3,and 15.4%,*** from the ICONA model also indicated that 12.8,28.8,22.1,27.9,8.5,and 0.03%belong to very low,low,medium,high,very high,and without risk of erosion,*** to the validation results,it was found that the accuracy of ANP and ICONA models are 0.83 and 0.80,respectively,which indicates the suitability of the models for preparing the erosion map of the region is appropriate and useful for designing land management *** conclude that both models can be used to develop the erosion map potential and to prioritize sub-basins if a complete database of geomorphological characteriscs and human activities are accurate previously defined.

关键词： Analysis network process method Natural hazards Land management Land uses Land degradation

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