TY JOUR TI THE IMPACT OF GLOBAL CLIMATE CHANGE ON THE FLUCTUATION OF NATURAL ZONES AND SUBZONES OF THE YENISEI SIBERIA IN THE HOLOCENE KW the Yenisei Siberia KW global climate change KW natural zones and subzones KW Holocene KW climatic periods of the Holocene KW plant communi-ties KW landscape KW fluctuation JO Bulletin of KSAU AU Demidenko, G.A. AU Khizhnyak, S.V. PY 2017 IS PB Krasnoyarsk State Agrarian University