Impact of Canopy Decoupling and Subcanopy Advection on the Annual Carbon Balance of a Boreal Scots Pine Forest as Derived From Eddy Covariance

2018 ◽  
Vol 123 (2) ◽  
pp. 303-325 ◽  
Author(s):  
Georg Jocher ◽  
John Marshall ◽  
Mats B. Nilsson ◽  
Sune Linder ◽  
Giuseppe De Simon ◽  
...  
Keyword(s):  
Eddy Covariance ◽  
Scots Pine ◽  
Carbon Balance ◽  
Pine Forest ◽  
Annual Carbon ◽  
Scots Pine Forest ◽  
Annual Carbon Balance

Impacts of summer water limitation on the carbon balance of a Scots pine forest in the southern upper Rhine plain

2008 ◽  
Vol 148 (11) ◽  
pp. 1815-1826 ◽  
Author(s):  
Jutta Holst ◽  
Romain Barnard ◽  
Elke Brandes ◽  
Nina Buchmann ◽  
Arthur Gessler ◽  
...  
Keyword(s):  
Scots Pine ◽  
Carbon Balance ◽  
Pine Forest ◽  
Water Limitation ◽  
Scots Pine Forest ◽  
Upper Rhine

The carbon balance of a Scots pine forest following severe windthrow: Comparison of reforestation techniques

2018 ◽  
Vol 260-261 ◽  
pp. 216-228 ◽  
Author(s):  
K. Ziemblińska ◽  
M. Urbaniak ◽  
L. Merbold ◽  
T.A. Black ◽  
A.M. Jagodziński ◽  
...  
Keyword(s):  
Scots Pine ◽  
Carbon Balance ◽  
Pine Forest ◽  
Scots Pine Forest

scholarly journals Autumn temperature and carbon balance of a boreal Scots pine forest in Southern Finland

2010 ◽  
Vol 7 (1) ◽  
pp. 163-176 ◽  
Author(s):  
T. Vesala ◽  
S. Launiainen ◽  
P. Kolari ◽  
J. Pumpanen ◽  
S. Sevanto ◽  
...  
Keyword(s):  
Scots Pine ◽  
Temperature Sensitivity ◽  
Carbon Balance ◽  
Pine Forest ◽  
Time Step ◽  
Meteorological Forcing ◽  
Late Autumn ◽  
Photosynthesis Model ◽  
Early Autumn ◽  
Scots Pine Forest

Abstract. We analyzed the dynamics of carbon balance components: gross primary production (GPP) and total ecosystem respiration (TER), of a boreal Scots pine forest in Southern Finland. The main focus is on investigations of environmental drivers of GPP and TER and how they affect the inter-annual variation in the carbon balance in autumn (September–December). We used standard climate data and CO2 exchange measurements collected by the eddy covariance (EC) technique over 11 years. EC data revealed that increasing autumn temperature significantly enhances TER: the temperature sensitivity was 9.5 gC m−2 °C−1 for the period September–October (early autumn when high radiation levels still occur) and 3.8 gC m−2 °C−1 for November–December (late autumn with suppressed radiation level). The cumulative GPP was practically independent of the temperature in early autumn. In late autumn, air temperature could explain part of the variation in GPP but the temperature sensitivity was very weak, less than 1 gC m−2 °C−1. Two models, a stand photosynthesis model (COCA) and a global vegetation model (ORCHIDEE), were used for estimating stand GPP and its sensitivity to the temperature. The ORCHIDEE model was tested against the observations of GPP derived from EC data. The stand photosynthesis model COCA predicted that under a predescribed 3–6 °C temperature increase, the temperature sensitivity of 4–5 gC m−2 °C−1 in GPP may appear in early autumn. The analysis by the ORCHIDEE model revealed the model sensitivity to the temporal treatment of meteorological forcing. The model predictions were similar to observed ones when the site level 1/2-hourly time step was applied, but the results calculated by using daily meteorological forcing, interpolated to 1/2-hourly time step, were biased. This is due to the nonlinear relationship between the processes and the environmental factors.

scholarly journals Autumn warming and carbon balance of a boreal Scots pine forest in Southern Finland

2009 ◽  
Vol 6 (4) ◽  
pp. 7053-7081 ◽  
Author(s):  
T. Vesala ◽  
S. Launiainen ◽  
P. Kolari ◽  
J. Pumpanen ◽  
S. Sevanto ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Scots Pine ◽  
Temperature Sensitivity ◽  
Carbon Balance ◽  
Pine Forest ◽  
Time Step ◽  
Late Autumn ◽  
Photosynthesis Model ◽  
Early Autumn ◽  
Scots Pine Forest

Abstract. We analyzed the dynamics of carbon balance components: gross primary production (GPP) and total ecosystem respiration (TER), of a boreal Scots pine forest in Southern Finland. Our aim was to study how these dynamics are related to different environmental conditions and how they affect the inter-annual variation in the carbon balance in autumn (September–December). We used standard micrometeorological data and CO2 exchange measurements collected by the eddy covariance (EC) technique over 11 years. The intra-annual relationships between the carbon balance components and the environmental factors were studied by the correlation analysis. Two models, a stand photosynthesis model and a generic dynamic vegetation model (ORCHIDEE), were also applied in the analysis. EC data revealed that increasing autumn temperature significantly enhances TER: the temperature sensitivity was 9.5 gC m−2 °C−1 for the period September–October (early autumn when high radiation levels still occur) and 3.8 gC m−2 °C−1 for November–December (late autumn with suppressed radiation level). The cumulative GPP was practically independent of the temperature in early autumn. In late autumn, air temperature could explain part of the variation in GPP but the temperature sensitivity was very weak, less than 1 g C m−2 °C−1. The stand photosynthesis model predicted that under a predescribed 3–6°C temperature increase, the temperature sensitivity of 4–5 gC m−2 °C−1 in GPP may appear in early autumn. The TER and GPP sensitivities, produced by the ORCHIDEE model, were similar to observed ones when the site level ½ h time step was applied, but the results calculated by using daily meteorological forcing, interpolated to ½ h time step, were biased stemming from the nonlinear relationship between the processes and the environmental factors.

Biometric and eddy covariance-based assessment of decadal carbon sequestration of a temperate Scots pine forest

2013 ◽  
Vol 174-175 ◽  
pp. 135-143 ◽  
Author(s):  
B. Gielen ◽  
B. De Vos ◽  
M. Campioli ◽  
J. Neirynck ◽  
D. Papale ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Eddy Covariance ◽  
Scots Pine ◽  
Pine Forest ◽  
Scots Pine Forest

Estimate of annual carbon balance of a young Siberian larch (Larix sibirica) plantation in Iceland

Tellus B ◽  
2007 ◽  
Vol 59 (5) ◽  
Author(s):  
Brynhildur Bjarnadottir ◽  
Bjarni D. Sigurdsson ◽  
Anders Lindroth
Keyword(s):  
Carbon Balance ◽  
Siberian Larch ◽  
Larix Sibirica ◽  
Annual Carbon ◽  
Annual Carbon Balance
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