作者: T. Ch. Maximov , A. V. Kononov , K. A. Petrov , B. I. Ivanov
DOI: 10.1007/978-90-481-3774-9_6
关键词: Ecosystem 、 Woody plant 、 Transpiration 、 Global warming 、 Environmental science 、 Ecology 、 Climate change 、 Stomatal conductance 、 Tundra 、 Taiga
摘要: Climate change in a global scale may have significant impact on the functioning of main Yakutian ecosystems (taiga, tundra, steppes, mountains, etc.). Studies photosynthetic activity shown that plants Yakutia, growing under specific light conditions with predomination orange-red rays, assimilate more solar radiation during day. Homeostatic growth and development woody Yakutia short vegetation period is provided by high rates physiological processes (photosynthesis transpiration) at relatively low dark night respiratory expenses for maintenance. A variability photosynthesis respiration testifies excellent adaptation Larix cajanderi to peculiar climatic cryolithozone. The dynamics hydrothermal regime soils many respects determined continuous process soil thawing, which stops only beginning winter. This closely linked characteristics vegetation. Under warming climate direction pedoturbation processes, directly affecting cycle organogens ecosystem, will be dominant factor leading an increase productivity forests production tree populations generally limited endogenous factors, especially stomatal conductance, but also exogenous ones, i.e. provision water mineral organogens, nitrogen.