COMPARATIVE ANALYSIS OF CHANGES IN THE HYDROTHERMAL COEFFICIENT, PEDA INDEX AND POTENTIAL NECTAR PRODUCTIVITY OF SMALL-LEAVED LINDEN GROWING IN DIFFERENT NATURAL-CLIMATIC ZONES OF THE REPUBLIC OF BASHKORTOSTAN. Proceedings of the YSU C: Geological and Geographical Sciences, v. 59, n. 2 (266), p. 311–318, 25 Aug.2025.