SeyedOmid Reza Shobairi Samira Hemmati Roudbari Qirghizbek Ayombekov Hadis Sadeghi BehnamAsghari Beirami MehranAlizadeh Pirbasti Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China Department of Soil Science, Faculty of Agriculture, University of Zanjan, Iran Climate Research Institute, Atmospheric Science and Meteorological Research Center, Iran Department of Photogrammetry and Remote Sensing, K. N. Toosi University of Technology, Tehran, Iran Department of Remote Sensing, Hekmat Institute of Higher Education, Qom, Iran Computational Ecology and Software ISSN 2220-721X http://www.iaees.org/publications/journals/ces/online-version.asp 2024 14 2 77 101 International Academy of Ecology and Environmental Sciences Hong Kong 4 October 2023 10 November 2023 1 June 2024 NDVI LAI FAPAR climate drivers ecoregions Alashan Plateau Several studies have demonstrated global climate change, which has happened worldwide; it significantly impacts terrestrial ecosystems. Studying vegetation phenology can provide insight into the impact of climate changes on ecosystems. Alashan Plateau Semi-Desert is located between the Tibetan Plateau and the Gobi Desert and has an arid continental climate. This area consists of highlands, and the sensitivity of natural vegetation to temperature and climate change is very high. This study aims to identify climate trends in forest cover indices using weather (meteorological) data from 1982 to 2019 across the Alashan Plateau Semi-Desert. Based on this, 13 variables that affect climate change were selected, and the possible effect of climate factors on vegetation indices was predicted using MATLAB. The results showed that over the past 38 years, three forest cover indices, LAI, FAPAR, and NDVI, decreased by about 6-10, 6-7, and 19-20 percent correspondingly, and it can be assumed that this decline is due to climate change. In general, it can be said that climate changeshave adverse effects in hot and dry regions and highlands. With the current climate change trends, such as increasing temperature and decreasing rainfall, reducing the dynamics of vegetation indices in these areas can be seen dramatically. http://www.iaees.org/publications/journals/ces/articles/2024-14(2)/impact-of-climate-factors-on-vegetation-dynamics.pdf