Кл.слова (ненормированные):
Climate -- TGA -- Wood Tree rings -- Atmospheric temperature -- Chemical analysis -- Forestry -- Landforms -- Lignin -- Thermogravimetric analysis -- Wood -- Air temperature -- Chemical compositions -- Climatic changes -- Forest-tundra ecotone -- Lignin-carbohydrate complex -- Thermal parameters -- Thermal response -- Weather variability -- Climate change
Аннотация: We applied thermogravimetric analysis to ten successive growth rings of Siberian larch and the same number of mountain birch individuals sampled in the alpine forest-tundra ecotone of Kuznetsk Ala Tau mountain ridge to compare physical and chemical responses of the species wood to climate change. Our analysis of the correlation of the wood thermal parameters with air temperature and precipitation revealed that early and latewood cellulose and lignin in the birch were more sensitive to climatic changes as compared to the larch. June–August weather conditions appeared to largely control the chemical composition of the birch early and latewood. Air temperature had a marked influence during synthesis of both early and latewood cell walls, whereas precipitation influenced only latewood. Thermogravimetric analysis of growth rings formed in alpine forest-tundra proved to be an effective tool to study the influence of climatic and weather variability on lignin-carbohydrate complex of deciduous and conifer tree species. © 2021, Akademiai Kiado, Budapest, Hungary.
Scopus
Держатели документа:
Laboratory of Woody Plant Physical and Chemical Biology, V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademdorodork 50/28, Krasnoyarsk, Russian Federation
Forest Monitoring Laboratory, V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Tyutkova, E. A.; Petrov, I. A.; Loskutov, S. R.