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

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 m...

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Bibliographic Details
Main Author: M. Nasiri
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2013-02-01
Series:Journal of Forest Science
Subjects:
Online Access:https://jfs.agriculturejournals.cz/artkey/jfs-201302-0005_gis-modelling-for-locating-the-risk-zone-of-soil-erosion-in-a-deciduous-forest.php
Description
Summary: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.
ISSN:1212-4834
1805-935X