GIS modelling for locating the risk zone of soil erosion in a deciduous forest

• Published in: Journal of forest science (Praha) Vol. 59; no. 2; pp. 87 - 91
• Main Author: Nasiri, M., Sari Agricultural Sciences and Natural Resources Univ. (Iran Islamic Republic). Fac. of Natural Resources
• Format: Journal Article
• Language: English
• Published: Czech Academy of Agricultural Sciences 01.02.2013
• Subjects: ahp; ALTITUD; ALTITUDE; AMENAGEMENT DU TERRITOIRE; CLASIFICACION; CLASSIFICATION; CONSERVACION DE AGUAS; CONSERVACION DE SUELOS; CONSERVATION DE L'EAU; CONSERVATION DES SOLS; conservation programs; EROSION HYDRIQUE; EROSION POR EL AGUA; FORECASTING; forest soil; FOREST SOILS; GEOGRAPHICAL INFORMATION SYSTEMS; GEOLOGIA; GEOLOGIE; GEOLOGY; gis; http://www.fao.org/aos/agrovoc#c_1653; http://www.fao.org/aos/agrovoc#c_3041; http://www.fao.org/aos/agrovoc#c_3051; http://www.fao.org/aos/agrovoc#c_316; http://www.fao.org/aos/agrovoc#c_3232; http://www.fao.org/aos/agrovoc#c_35131; http://www.fao.org/aos/agrovoc#c_37899; http://www.fao.org/aos/agrovoc#c_4881; http://www.fao.org/aos/agrovoc#c_7165; http://www.fao.org/aos/agrovoc#c_7377; http://www.fao.org/aos/agrovoc#c_7815; http://www.fao.org/aos/agrovoc#c_8176; http://www.fao.org/aos/agrovoc#c_8315; http://www.fao.org/aos/agrovoc#c_8318; LAND USE PLANNING; METHODE STATISTIQUE; METODOS ESTADISTICOS; MODELE; MODELOS; ORDENACION TERRITORIAL; SISTEMAS DE INFORMACION GEOGRAFICA; SOIL CONSERVATION; SOL DE FORET; STATISTICAL METHODS; SUELO FORESTAL; SYSTEME D'INFORMATION GEOGRAPHIQUE; TECHNIQUE DE PREVISION; TECNICAS DE PREDICCION; TOPOGRAFIA; TOPOGRAPHIE; TOPOGRAPHY; VEGETACION; VEGETATION; water; WATER CONSERVATION; WATER EROSION
• ISSN: 1212-4834; 1805-935X
• DOI: 10.17221/71/2012-jfs

The maps of altitude, geology, vegetation cover and land use were prepared and classified as the main criteria to locate soil and water conservation programs. Analytical Hierarchy Process (AHP) was used to determine the relative priorities of these criteria by pairwise comparison. All the thematic maps were then integrated using the overlay process in Geographical Information System (GIS) and the final map of soil erosion risk was produced. Results indicated that vegetation cover was given the highest weight (0.494). The geology was assigned the second highest weight (0.313), as the main cause of initiation of the erosion of erodible lands. Land-use change has a local influence on soil erosion, so it was assigned the third weight (0.151). Altitude is a low-impact variable for predicting the water and soil conservation areas.