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FEATURES OF CARBON AND WATER CYCLES OF FOREST PERMAFROST ECOSYSTEMS IN THE CONTEXT OF GLOBAL CLIMATE CHANGE
Original title
ОСОБЕННОСТИ УГЛЕРОДНОГО И ВОДНОГО ЦИКЛОВ ЛЕСНЫХ ЭКОСИСТЕМ КРИОЛИТОЗОНЫ В КОНТЕКСТЕ ГЛОБАЛЬНОГО ИЗМЕНЕНИЯ КЛИМАТА
Authors
T.C. Maximov1,2, A.V. Kononov1,2, A.P. Maksimov1, R.E. Petrov1, M.P. Terentyeva1
Contact information
1Institute for Biological Problems of Cryolithozone Siberian Branch of Russian Academy of Sciences, Yakutsk, Russia, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
2M.K Ammosov North-Eastern Federal University, Yakutsk, Russia, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
Pages
492-495
DOI
10.31255/978-5-94797-319-8-492-495
Abstract
The results of long-term investigations on the main components of the carbon and water cycles of permafrost representative forest ecosystems in the North-East of Russia are presented. Low biomass of needles with a low leaf area index (up to 2.0) and a shorted period of photosynthetic activity led to a decreased net primary productivity (NPP=3.1±0,3 t ha-1 year-1) of larch, the main forest-forming species in Central Yakutia. In Yakutia during a short growing season the growth and development of woody plants are provided by high levels of photosynthesis and transpiration with relatively low dark and night respiration expenses for growth and maintenance. The annual carbon sink in the larch forests of South Yakutia is 2.43±0.23 t C ha-1 yr-1, and in the larch forest of Central Yakutia is 2.12±0.34 t C ha-1 year-1. Based on the results of long-time research, we have compiled the schematic models of the annual carbon and water budget of larch forests, these models can be used as an exclusive data for verification and assessment of the Russian carbon pool and for developing adequate models of regional and global balance of carbon and water in plant communities.