Flux and compartment partitioning of the tree carbon (C) balance

Range Table - link g C/tree/year
Organism Plants
Reference Klein T, Hoch G. Tree carbon allocation dynamics determined using a carbon mass balance approach. New Phytol. 2014 Aug 26. doi: 10.1111/nph.12993. p.11 table 3PubMed ID25157793
Primary Source [1] Agren GI, Axelsson B, Flower-Ellis JGK, Linder S, Persson H, Stall H, Troeng E. 1980. Annual budget for a young Scots pine. Ecological Bulletins 32: 307– 313. [2] Nygren P, Kiema P, Rebottaro S. 1996. Canopy development, CO2 exchange and carbon balance of a modeled agroforestry tree. Tree Physiology 16: 733–745. [3] Le Goff N, Granier A, Ottorini J-M, Pfeiffer M. 2004. Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental stand in northern France. Annals of Forest Science 61: 1–12.PubMed ID14871680
Method "To transform all values into g C, the molar masses of C and CO2 were applied (12 and 44 g/mol, respectively), and a molar mass of 30 g/mol was used as a general form of carbohydrate (CH2O). Therefore, measurements of CO2 fluxes were multiplied by the molar ratio 12/44, and dry biomass values were multiplied by the molar ratio 12/30."
Comments "Previous studies of the C balance at the tree scale have shown a different flux partitioning than here, with growth estimated as the major flux (Table 3)...The partitioning of C fluxes into the tree’s compartments (Fig. 5) can be also compared with the results of earlier studies (Table 3), with some degree of uncertainty. The annual C uptake calculated for 25-yr-old F. excelsior (primary source [3]) was relatively close to the value estimated here. Results from that study and from Agren et al. (primary source [1]) were also in agreement with the major role of roots in the tree’s respiration flux." See notes beneath table
Entered by Uri M
ID 110887