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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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Fluorescence induced by light of 380-540 nm in leaves of cucumber depening on the vegetation time and irradiation regime [Текст] / V. V. Zavoruev, E. N. Zavorueva, A. V. Shelegov // Biofizika. - 2000. - Vol. 45, Is. 4. - P. 704-711. - Cited References: 25 . - ISSN 0006-3029

РУБ Biophysics
Рубрики:
CHLOROPHYLL
   INDUCTION
   RATIO
   INCREASE
Кл.слова (ненормированные):
slow fluorescence induction -- cucumber leaves -- vegetation time spectral conditions
Аннотация: The slow fluorescence induction produced iii cucumber leaves by light in the range of wavelengths 380-540 nm and intensity of 180 W/m(2) was studied. The ratio of fluorescence maxima in the red region (F(734)/F(682)) in young and mature leaves was approximately 2. It is assumed that this value depends on an increase in the contribution of the long-wavelength fluorescence due to the spillover effect. In plants grown under natural conditions, the paramster F(734)/F(682) correlated with the concentrations of chlorophyll and carotenoids. In plants grown hi the light of red and blue regions no such correlation was observed and the F(734)/F(682) remained unchanged. It is concluded that the F(534)/F(682) is affected by the intensity and spectral composition of exciting light used during the growing.

WOS
Держатели документа:
Russian Acad Sci, Inst Computat Modeling, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zavoruev, V.V.; Zavorueva, E.N.; Shelegov, A.V.

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