Net ecosystem production of boreal larch ecosystems on the Yenisei Transect

  • Vedrova E
  • Pleshikov F
  • Kaplunov V
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The study was carried out in the Turukhansk Research Station of Yenisei Transect (65_46'N, 89_25'E). Larch (Larix gmelinii (Rupr.) Rupr.) is the dominant overstory tree species. The research has been conducted on four permanent test plots in same-age mature (110-year old) and overmature (380-year old) post-fire larch stands of green moss and lichen groups of forest type. Carbon cycle parameters were assessed based on a biometric method. Quantitative analysis of carbon pools and fluxes shows that net ecosystem production of north taiga larch stands averages 32% of net primary production. Sink of atmospheric CO2 makes 1.22 and 0.74 t C ha-1 year-1 for mature and overmature green moss larch stands, and 0.65 and 0.35 t C ha -1 year-1 for lichen type. Net carbon sink in the tree layer make up 9% of net primary production carbon, ground vegetation - 15%, and dead plant residues accumulation - 8% of atmospheric carbon uptake via photosynthesis.

Author-supplied keywords

  • Biomass
  • Decomposition
  • Fluxes
  • Forest ecosystem
  • Mineralization
  • Net ecosystem production
  • Net primary production
  • Sink
  • Soil organic matter

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  • Estella F. Vedrova

  • Fedor I. Pleshikov

  • Vladimir Ya Kaplunov

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