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

M. Nasiri
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M. Nasiri: Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran

Journal of Forest Science, 2013, vol. 59, issue 2, 87-91

Abstract: 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.

Keywords: forest soil; water; conservation programs; AHP; GIS (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:59:y:2013:i:2:id:71-2012-jfs

DOI: 10.17221/71/2012-JFS

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