Monitoring of Vegetation Change in the growing season by using satellite imagery and its relationship with climatic factors (Case Study: Alborz Province)

This research was aimed to monitor the vegetation changes in the rangelands of Alborz province during 2000-2011 using satellite images as well as determining its relationship with climatic factors including average rainfall, temperature, and relative humidity. According to the results, the highest NDVI was recorded for Taleghan followed by Savojbolagh and Karaj, and then Eshtehard and Karaj with less significant difference. Based on the obtained model, the rainfall of November, December, January, February, and average annual rainfall had the most positive impact on the growth of range plants, while other factors including temperature and relative humidity had no significant relationship with the vegetation of the study period. According to the trend of vegetation changes, the amount of vegetation has been reduced after year 2000 and it has increased again in 2011.