Document Type : Original Article
Authors
1 Assistant Professor of Watershed Management Engineering group, Sari Agricultural Sciences and Natural Resources university. Iran.
2 Director of Remote Sensing Center, Sari University
Abstract
Investigating land use changes requires the integration of layers in a certain period. This research aims to investigate land use changes in Haraz Plain from 1980 to 2021. Therefore, Landsat data was used to measure the changes. By applying atmospheric, geometric and radiometric corrections, image enhancement operations were performed and land use change maps were produced based on the supervised classification method, maximum likelihood algorithm and basis component analysis functions. The type of land use changes was determined from the difference function of the identification images and the accuracy of the maps using the overall accuracy test and the Kappa statistic. The results showed that from 1980 to 1990, the area of forest lands decreased by 4 km2. The rangeland area also decreased from 450 to 436 km2. From 2000 to 2010, the area of forest land decreased from 272 to 270 km2 and rangeland decreased from 432 to 420 km2. Finally, between 2011 and 2021, the area of forest lands decreased by 9 km2 and the rangeland area decreased by 5 km2. The results of the investigation of the changes in land use in the region indicate that the area of forest and rangeland lands decreased and the area of agricultural lands and residential areas increased. These results can help planners find the factors affecting land use changes and make correct management decisions in the future.
Keywords
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