ANALYSIS OF CHANGES IN THE UPPER FOREST BOUNDARY OF THE KEY AREAS IN THE REPUBLIC OF ARMENIA OVER THE PAST 130 YEARS. (2026). Proceedings of the YSU C: Geological and Geographical Sciences, Special Issue N1 (270), 65. https://journals.ysu.am/proceedings-geol-geogr/article/view/vol60_2026_SI1_065