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Modeling of CO2 fluxes between atmosphere and boreal forest / Y. V. Barkhatov [et al.] ; ed.: Z Yang, Z Yang // 18TH BIENNIAL ISEM CONFERENCE ON ECOLOGICAL MODELLING FOR GLOBAL CHANGE AND COUPLED HUMAN AND NATURAL SYSTEM. Ser. Procedia Environmental Sciences : ELSEVIER SCIENCE BV, 2012. - Vol. 13: 18th Biennial ISEM Conference on Ecological Modelling for Global Change and Coupled Human and Natural Systems (SEP 20-23, 2011, Beijing, PEOPLES R CHINA). - P621-625, DOI 10.1016/j.proenv.2012.01.053. - Cited References: 17 . - 5. - ISBN 1878-0296

РУБ Ecology + Environmental Sciences
Рубрики:
CARBON-DIOXIDE FLUXES
   SIBERIA
   BUDGET
   SINKS
   RATIO
   O-2
Кл.слова (ненормированные):
Global carbon cycle -- Siberian boreal forests -- mathematical modeling -- atmospheric boundary layer budget method
Аннотация: Difficulties in estimating terrestrial ecosystem CO2 fluxes on regional scales have significantly limited our understanding of the global carbon cycle. We present a method of using tall-tower-based CO2 concentrations for estimating CO2 fluxes over a forested region. With long-term measurements of the CO2 mixing ratio at a 300-m-tall tower, regional CO2 fluxes were estimated for several months, from the first obtained data. Estimates of a monthly-integrated surface CO2 flux over the region were obtained by the analysis of average gradients and estimates of the rate of vertical mixing between the atmospheric boundary layer (ABL) and the free troposphere. For the comparison of the ABL budget method and field measurements a zero-dimensional mathematical model of the ecosystem of Siberian boreal forests was used. The model is a system of ordinary differential equations with additional conditions superimposed on the parameters. The main occurring processes are described - photosynthesis, respiration, seasonal changes of active phytomass, water balance of trees, the influence of light, humidity, and temperature on photosynthesis and respiration. (C) 2011 Published by Elsevier B. V. Selection and/or peer-review under responsibility of School of Environment, Beijing Normal University.

Держатели документа:
[Barkhatov, Y. V.
Belolipetsky, P. V.
Degermendzhi, A. G.
Shchemel, A. L.] Inst Biophys SB RAS, Krasnoyarsk 660036, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Barkhatov, Y.V.; Belolipetsky, P.V.; Degermendzhi, A.G.; Belolipetskii, V.M.; Verkhovets, S.V.; Timokhina, A.V.; Panov, A.V.; Shchemel, A.L.; Vedrova, E.F.; Trephilova, O.V.; Yang, Z \ed.\

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Component elements of the carbon cycle in the middle and lower Yenisei River [Text] / A. P. Tolomeev [et al.] // Contemp. Probl. Ecol. - 2014. - Vol. 7, Is. 4. - P489-500, DOI 10.1134/S1995425514040118. - Cited References: 41. - This work was supported by a grant from the government of the Russian Federation for support of scientific research activities implemented under the supervision of leading scientists at Russian institutions of higher education (no. 11.G34.31.0014) and by project G-1 of the Siberian Federal University carried out according to Federal Program of the Ministry of Education and Science of the Russian Federation. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
DISSOLVED ORGANIC-MATTER
   DCMU-FLUORESCENCE METHOD
   ARCTIC-OCEAN
   KARA SEA
   OB
   RESPIRATION
   ECOSYSTEM
   SIBERIA
   FLUXES
   BIOGEOCHEMISTRY
Кл.слова (ненормированные):
Yenisei River -- carbon cycle -- nutrients -- primary production -- respiration -- phytoplankton -- bacterioplankton
Аннотация: An integrated study of the middle and lower Yenisei River was performed in the summer of 2012. It involved monitoring the key elements and ecological processes associated with the carbon cycle of the river ecosystem (the study area is more than 1800 km long). Measurements of the production and destruction processes have shown the failure of the "neutral pipe" hypothesis claiming that any river is a simple drain of carbon from terrestrial ecosystems to the ocean. The Yenisei River is not a purely heterotrophic ecosystem. It also has autotrophic areas, where the primary production of planktonic photosynthesis is higher than respiration (above the Angara River and near the Bolshaya and Malaya Heta rivers). According to the data, the respiration rate of the plankton community in the river depends mostly on the water temperature and the content of inorganic phosphorous that can restrict the amount of organic matter consumed by bacterioplankton.

WOS
Держатели документа:
[Tolomeev, A. P.
Anishchenko, O. V.
Kravchuk, E. S.
Kolmakova, O. V.
Makhutova, O. N.
Kolmakova, A. A.
Kolmakov, V. I.
Trusova, M. Yu
Sushchik, N. N.
Gladyshev, M. I.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
[Kolmakova, O. V.
Glushchenko, L. A.
Kolmakov, V. I.
Sushchik, N. N.
Gladyshev, M. I.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tolomeev, A.P.; Anishchenko, O.V.; Kravchuk, E.S.; Kolmakova, O.V.; Glushchenko, L.A.; Makhutova, O.N.; Kolmakova, A.A.; Kolmakov, V.I.; Trusova, M.Y.; Sushchik, N.N.; Gladyshev, M.I.; government of the Russian Federation [11.G34.31.0014]; Siberian Federal University [G-1]

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Cryptophyta Flagellates of Meromictic Lakes Shira and Shunet (Khakassia, Russia): Mechanisms of Vertical Distribution and Trophic Role [Text] / Y. Barkhatov [et al.] // Acta Geol. Sin.-Engl. Ed. - 2014. - Vol. 88. - P50-52, DOI 10.1111/1755-6724.12266_4. - Cited References:9. - This work was supported by Russian Foundation for Basic Research (RFBR)No. 13-04-01514 and Integrative Project of Siberian Branch of RussianAcademy of Sciences No. 56. . - ISSN 1000-9515. - ISSN 1755-6724

РУБ Geosciences, Multidisciplinary
Рубрики:
CHEMOCLINE
SIBERIA
SALINE
Кл.слова (ненормированные):
phytoflagellates -- deep chlorophyll maxima -- meromictic lake -- simulation -- modelling -- LakeShira -- LakeShunet

WOS
Держатели документа:
Inst Biophys SB RAS, Krasnoyarsk 660036, Russia.
ИБФ СО РАН

Доп.точки доступа:
Barkhatov, Yuri; Khromechek, Elena; Tolomeev, Alexander; Prokopkin, Igor; Russian Foundation for Basic Research (RFBR) [13-04-01514]; SiberianBranch of Russian Academy of Sciences [56]

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Okenone in Bottom Sediments as a Proxy for Changes in the Water Level of a Saline Stratified Lake / D. Y. Rogozin, V. V. Zykov, A. O. Bulkhin, A. G. Degermendzhi // Dokl. Earth Sci. - 2020. - Vol. 493, Is. 1. - P565-568, DOI 10.1134/S1028334X20070168. - Cited References:8. - This work was supported by the Russian Foundation for Basic Research, project no. 19-05-00428. . - ISSN 1028-334X. - ISSN 1531-8354

РУБ Geosciences, Multidisciplinary
Рубрики:
SHIRA
SIBERIA
CYCLES
Кл.слова (ненормированные):
okenone -- purple sulfur bacteria -- meromixis -- water level -- stratification -- climate reconstruction
Аннотация: Long-term measurements show that the sedimentation dynamics of okenone (a carotenoid of purple sulfur bacteria) reflects the abundance of purple sulfur bacteria, the hydrogen sulfide content, and the stratification stability in the closed saline meromictic Shira Lake (Southern Siberia, Russia). The profile of fossil okenone in bottom sediments has been compared with the data on the water surface level in the lake over the last 100 years. The peaks of okenone correspond to lake transgressions, and the drops in the okenone content coincide with periods of stable or decreasing water level. Our observations show that fossil okenone may be used as a qualitative proxy of meromictic conditions and as a quantitative proxy of the water level dynamics in closed stratified lakes. Therefore, okenone can be used for qualitative reconstructions of the water balance and climate humidity in arid zones.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Rogozin, D. Y.; Zykov, V. V.; Bulkhin, A. O.; Degermendzhi, A. G.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-05-00428]

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