Spatial Prioritizing of Pastures Using Spatial Multi Criteria Evaluation (Case study: Yoosef Abad watershed – Iran)

摘要

Pastures are national resources for each country. Appropriate planning regarding proper distribution of domestic animals leads to correct usage of such resources and destructing plant species in pastures. Prioritizing of pastures in watershed is one of main actions in planning for optimal use of pastures. In this research, spatial prioritizing of pastures in Yoosef Abad region is specified using Spatial Multi Criteria Evaluation (SMCE). The input was a number of raster maps of a certain area (range capacity, range trend, range production), spatial factors (proximity to village, to spring, to well, to river, to Qanat) and spatial limitations (slope, geomorphology, roads, river, height classes), and a criteria tree that contains the way criteria was grouped and standardized. All factors were taken weight by Fuzzy method between 0 and 1. Then they were incorporated and composite index map was developed. Finally the composite index maps was sliced and classified where pastures in research area were prioritized in terms of priority and the best location for grazing in the region was specified.