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Simulating carbon exchange of Canadian boreal forests

Author

Listed:
  • Sun, Jianfeng
  • Peng, Changhui
  • McCaughey, Harry
  • Zhou, Xiaolu
  • Thomas, Valerie
  • Berninger, Frank
  • St-Onge, Benoît.
  • Hua, Dong

Abstract

The boreal forest, earth's second largest terrestrial biome, is currently thought to be an important net carbon sink for the atmosphere. In this study, a newly developed carbon exchange model of TRIPLEX-Flux (with half-hourly time step) is used to simulate the ecosystem carbon exchange of a 75-year-old boreal mixedwood forest stand in northeast Ontario and a 110-year-old pure black spruce stand in southern Saskatchewan, Canada. Results of net ecosystem exchange (NEE) simulated by TRIPLEX-Flux for 2004 are compared with those measured by eddy-flux towers and suggest overall agreement between model simulation and observations. The mean coefficient of determination (R2) is approximately 0.77 for boreal mixedwood and 0.62 for old black spruce. Differences between model simulation and observation may be attributed to uncertainties not only in model input parameters and calibration, but also in eddy-flux measurements caused by systematic and random errors. The model is able to capture the diurnal variations of NEE for the growing season (from May to August) of 2004 for both sites. Both boreal mixedwood and old black spruce were acting as carbon sinks for the atmosphere during the growing season of 2004. However, the boreal mixedwood stand shows higher ecosystem productivity, carbon sequestration, and carbon use efficiency than the old black spruce stand.

Suggested Citation

  • Sun, Jianfeng & Peng, Changhui & McCaughey, Harry & Zhou, Xiaolu & Thomas, Valerie & Berninger, Frank & St-Onge, Benoît. & Hua, Dong, 2008. "Simulating carbon exchange of Canadian boreal forests," Ecological Modelling, Elsevier, vol. 219(3), pages 276-286.
    • Handle: RePEc:eee:ecomod:v:219:y:2008:i:3:p:276-286
    DOI: 10.1016/j.ecolmodel.2008.03.031
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    1. R. Valentini & G. Matteucci & A. J. Dolman & E.-D. Schulze & C. Rebmann & E. J. Moors & A. Granier & P. Gross & N. O. Jensen & K. Pilegaard & A. Lindroth & A. Grelle & C. Bernhofer & T. Grünwald & M. , 2000. "Respiration as the main determinant of carbon balance in European forests," Nature, Nature, vol. 404(6780), pages 861-865, April.
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    Cited by:

    1. Liu, Qiuyu & Peng, Changhui & Schneider, Robert & Cyr, Dominic & Liu, Zelin & Zhou, Xiaolu & Kneeshaw, Daniel, 2021. "TRIPLEX-Mortality model for simulating drought-induced tree mortality in boreal forests: Model development and evaluation," Ecological Modelling, Elsevier, vol. 455(C).
    2. Shaw, C.H. & Hilger, A.B. & Metsaranta, J. & Kurz, W.A. & Russo, G. & Eichel, F. & Stinson, G. & Smyth, C. & Filiatrault, M., 2014. "Evaluation of simulated estimates of forest ecosystem carbon stocks using ground plot data from Canada's National Forest Inventory," Ecological Modelling, Elsevier, vol. 272(C), pages 323-347.
    3. Podur, Justin & Wotton, Michael, 2010. "Will climate change overwhelm fire management capacity?," Ecological Modelling, Elsevier, vol. 221(9), pages 1301-1309.
    4. Wen, Xuding & Zhao, Zhonghui & Deng, Xiangwen & Xiang, Wenhua & Tian, Dalun & Yan, Wende & Zhou, Xiaolu & Peng, Changhui, 2014. "Applying an artificial neural network to simulate and predict Chinese fir (Cunninghamia lanceolata) plantation carbon flux in subtropical China," Ecological Modelling, Elsevier, vol. 294(C), pages 19-26.
    5. Wang, Z. & Grant, R.F. & Arain, M.A. & Bernier, P.Y. & Chen, B. & Chen, J.M. & Govind, A. & Guindon, L. & Kurz, W.A. & Peng, C. & Price, D.T. & Stinson, G. & Sun, J. & Trofymowe, J.A. & Yeluripati, J., 2013. "Incorporating weather sensitivity in inventory-based estimates of boreal forest productivity: A meta-analysis of process model results," Ecological Modelling, Elsevier, vol. 260(C), pages 25-35.
    6. Zhang, Minxia & Chen, Shulin & Jiang, Hong & Peng, Changhui & Zhang, Jinmeng & Zhou, Guomo, 2020. "The impact of intensive management on net ecosystem productivity and net primary productivity of a Lei bamboo forest," Ecological Modelling, Elsevier, vol. 435(C).
    7. Wang, Weifeng & Peng, Changhui & Zhang, S.Y. & Zhou, Xiaolu & Larocque, Guy R. & Kneeshaw, Daniel D. & Lei, Xiangdong, 2011. "Development of TRIPLEX-Management model for simulating the response of forest growth to pre-commercial thinning," Ecological Modelling, Elsevier, vol. 222(14), pages 2249-2261.

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