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Sustained carbon uptake and storage following moderate disturbance in a Great Lakes forest

Gough, Christopher M ; Hardiman, Brady S ; Nave, Lucas E ; Bohrer, Gil ; Maurer, Kyle D ; Vogel, Christoph S ; Nadelhoffer, Knute J ; Curtis, Peter S

Ecological applications : a publication of the Ecological Society of America, July 2013, Vol.23(5), pp.1202-15 [Rivista Peer Reviewed]

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  • Titolo:
    Sustained carbon uptake and storage following moderate disturbance in a Great Lakes forest
  • Autore: Gough, Christopher M ; Hardiman, Brady S ; Nave, Lucas E ; Bohrer, Gil ; Maurer, Kyle D ; Vogel, Christoph S ; Nadelhoffer, Knute J ; Curtis, Peter S
  • Note di contenuto: Carbon (C) uptake rates in many forests are sustained, or decline only briefly, following disturbances that partially defoliate the canopy. The mechanisms supporting such functional resistance to moderate forest disturbance are largely unknown. We used a large-scale experiment, in which > 6700 Populus (aspen) and Betula (birch) trees were stem-girdled within a 39-ha area, to identify mechanisms sustaining C uptake through partial canopy defoliation. The Forest Accelerated Succession Experiment in northern Michigan, USA, employs a suite of C-cycling measurements within paired treatment and control meteorological flux tower footprints. We found that enhancement of canopy light-use efficiency and maintenance of light absorption maintained net ecosystem production (NEP) and aboveground wood net primary production (NPP) when leaf-area index (LAI) of the treatment forest temporarily declined by nearly half its maximum value. In the year following peak defoliation, redistribution of nitrogen (N)...
  • Fa parte di: Ecological applications : a publication of the Ecological Society of America, July 2013, Vol.23(5), pp.1202-15
  • Soggetti: Ecosystem ; Trees ; Carbon -- Chemistry
  • Lingua: Inglese
  • Tipo: Articolo
  • Identificativo: ISSN: 1051-0761 ; PMID: 23967586 Version:1

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