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Modelling understorey light for seedling regeneration in continuous cover forestry canopies

Publication ,  Journal Article
Bertin, S; Palmroth, S; Kim, HS; Perks, MP; Mencuccini, M; Oren, R
Published in: FORESTRY
October 2011

Continuous cover forestry (CCF) aims at enhancing stand structural diversity and favouring natural regeneration. To give guidance on how to manage a CCF stand to achieve seedling growth below canopy, an estimate of light transmittance is required. So far, in the UK, only stand-level parameters have been used by managers to predict the understorey light in CCF stands. We assessed a UK Sitka spruce stand undergoing transformation to CCF and measured canopy transmittance using hemispherical pictures. Stand-level characteristics were found to be highly stand specific and not appropriate to predict seedling growth in CCF stands. We parameterized a detailed light model (4C-A-RTM) and a simple one-layer turbid medium model (BL). A sensitivity analysis was performed to test the effect of key stand structural parameters on the modelled transmittance. Measured transmittance from hemispherical photographs was used to validate the models. Both models tended to underestimate canopy transmittance but were positively related to current-year growth of the below canopy seedlings (R(2) = 0.92, P

Duke Scholars

Published In

FORESTRY

DOI

ISSN

0015-752X

Publication Date

October 2011

Volume

84

Issue

4

Start / End Page

397 / 409

Related Subject Headings

  • Forestry
  • 3007 Forestry sciences
  • 0705 Forestry Sciences
 

Citation

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Bertin, S., Palmroth, S., Kim, H. S., Perks, M. P., Mencuccini, M., & Oren, R. (2011). Modelling understorey light for seedling regeneration in continuous cover forestry canopies. FORESTRY, 84(4), 397–409. https://doi.org/10.1093/forestry/cpr026
Bertin, Sophie, Sari Palmroth, Hyun S. Kim, Mike P. Perks, Maurizio Mencuccini, and Ram Oren. “Modelling understorey light for seedling regeneration in continuous cover forestry canopies.” FORESTRY 84, no. 4 (October 2011): 397–409. https://doi.org/10.1093/forestry/cpr026.
Bertin S, Palmroth S, Kim HS, Perks MP, Mencuccini M, Oren R. Modelling understorey light for seedling regeneration in continuous cover forestry canopies. FORESTRY. 2011 Oct;84(4):397–409.
Bertin, Sophie, et al. “Modelling understorey light for seedling regeneration in continuous cover forestry canopies.” FORESTRY, vol. 84, no. 4, Oct. 2011, pp. 397–409. Manual, doi:10.1093/forestry/cpr026.
Bertin S, Palmroth S, Kim HS, Perks MP, Mencuccini M, Oren R. Modelling understorey light for seedling regeneration in continuous cover forestry canopies. FORESTRY. 2011 Oct;84(4):397–409.
Journal cover image

Published In

FORESTRY

DOI

ISSN

0015-752X

Publication Date

October 2011

Volume

84

Issue

4

Start / End Page

397 / 409

Related Subject Headings

  • Forestry
  • 3007 Forestry sciences
  • 0705 Forestry Sciences