| The spatial assessment of the vegetation changes during the time (Case Study: Kashan Basin in Iran) |
| Paper ID : 1096-SMPR |
| Authors: |
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Pouyan Dehghan1, Hossein Azarnivand *2, Esmail Heydari Alamdarloo1, Marzieh Ghodsi3 1PhD student of Combat to Desertification, Department of Arid and Mountainous Regions Reclamation, Faculty of Natural Resources, University of Tehran 2Department of Arid and Mountainous Regions Reclamation, Faculty of Natural Resources, University of Tehran, Karaj, Iran. 3PhD in Geoecohydrology, Department of Physical Geography (Geomorphology), Faculty of Geography University of Tehran |
| Abstract: |
| Evaluating the process of vegetation changes in any ecosystem can help manage ecosystems to achieve sustainable development. In this research, the trend of vegetation changes in Kashan basin was investigated using normalized difference vegetation index (NDVI). Initially, NDVI was prepared for the 16-day period from the beginning of 2001 to the end of 2018 from the MOD13 Q1 of MODIS satellite. Then, the fluctuations of seasons were omitted using the Earth Trends Modeler in TerrSet software to the effects of season fluctuations in the analysis do not create errors. Then, the nonparametric test of Mann-Kendall was carried out on the images using Earth Trends Modeler. The results showed that in most of the Kashan basin, vegetation changes were significant at 5% level and most of the regions had a negative trend. But in areas from Northwest to Southwest, the trend of vegetation changes in most of the areas was positive or without significant trend. These results showed that the regions that are most affected by human activities are degraded, but areas that are in high regions that are not affected by human activity have better conditions. |
| Keywords: |
| NDVI, Mann-Kendall, Destruction, Vegetation changes, Kashan |
| Status : Conditional Accept (Poster) |
