Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

[Text] / O. Masyagina [et al.] // Photosynth. Res. - 2016. - Vol. 130, Is. 1-3. - P267-274, DOI 10.1007/s11120-016-0250-1. - Cited References:14. - We would like to thank staff of laboratory of biogeochemical cycles in forest ecosystems at V.N. Sukachev Institute of Forest Siberian Branch, namely Tsukanov A.A., Timokhina A.V., Klimchenko A.V., Panov A.V. for the various technical assistance during fieldworks at Tura Station (Evenkia, Russian Federation). This work was partly supported by the Russian Foundation of Basic Research (Grant No 13-04-00659-a) and by the Russian Science Foundation (14-24-00113). . - ISSN 0166-8595. - ISSN 1573-5079РУБ Plant Sciences

Аннотация: This research is an attempt to study seasonal translocation patterns of photoassimilated carbon within trees of one of the high latitudes widespread deciduous conifer species Larix gmelinii (Rupr. Rupr). For this purpose, we applied whole-tree labeling by (CO2)-C-13, which is a powerful and effective tool for tracing newly developed assimilates translocation to tissues and organs of a tree. Experimental plot has been established in a mature 105-year-old larch stand located within the continuous permafrost area near Tura settlement (Central Siberia, 64A degrees 17'13aEuro(3)N, 100A degrees 11'55aEuro(3)E, 148 m a.s.l.). Measurements of seasonal photosynthetic activity and foliage parameters (i.e., leaf length, area, biomass, etc.), and sampling were arranged from early growing season (June 8, 2013; May 14, 2014) until yellowing and senescence of needles (September 17, 2013; September 14, 2014). Labeling by C-13 of the tree branch (June 2013, for 3 branch replicates in 3 different trees) and the whole tree was conducted at early (June 2014), middle (July 2014), and late (August 2013) phase of growing season (for different trees in 3 replicates each time) by three pulses [(CO2)max = 3000-4000 ppmv, (CO2)-C-13 (30 % v/v)]. We found at least two different patterns of carbon translocation associated with larch CO2 assimilation depending on needle phenology. In early period of growing season (June), C-13 appearing in newly developed needles is a result of remobilized storage material use for growth purposes. Then approximately at the end of June, growth processes is switching to storage processes lasting to the end of growing season.

WOS,
Смотреть статью

Держатели документа:
VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia.
NRC Kurchatov Inst, Moscow, Russia.
SRC Planeta, Moscow, Russia.

Доп.точки доступа:
Masyagina, Oxana; Prokushkin, Anatoly; Kirdyanov, Alexander; Artyukhov, Aleksey; Udalova, Tatiana; Senchenkov, Sergey; Rublev, Aleksey; Russian Foundation of Basic Research [13-04-00659-a]; Russian Science Foundation [14-24-00113]

/ D. A. Polosukhina, O. V. Masyagina, A. S. Prokushkin // IOP Conference Series: Earth and Environmental Science : IOP Publishing Ltd, 2020. - Vol. 611: 11th International Conference and Early Career Scientists School on Environmental Observations, Modeling and Information Systems, ENVIROMIS 2020 (7 September 2020 through 11 September 2020, ) Conference code: 166001, Is. 1. - Ст. 012031, DOI 10.1088/1755-1315/611/1/012031 . -
Аннотация: The stocks of phyto(bio)mass of a ground vegetation cover consisting of dwarf shrubs, lichens, and feathermosses are estimated in pine forests of Central Siberia (ZOTTO). CO2 photoassimilation dynamics is analyzed for the dominant species of the moss-lichen layer throughout the growing season. In parallel, we assess the impact of abiotic environmental factors on the photoassimilation intensity. © Published under licence by IOP Publishing Ltd.

Scopus

Держатели документа:
Siberian Federal University, 79 Svobodny Prospect, Krasnoyarsk, 660041, Russian Federation
V N Sukachev Institute of Forest SB RAS, 50/28 Akademgorodok Street, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Polosukhina, D. A.; Masyagina, O. V.; Prokushkin, A. S.