Allometry of fine roots in forest ecosystems

Guangshui Chen, Sarah E Hobbie, Peter B Reich, Yusheng Yang, David Robinson

Research output: Contribution to journalLetter

3 Citations (Scopus)

Abstract

Theoretical predictions regarding fine root production are needed in many ecosystem models but are lacking. Here, we expand the classic pipe model to fine roots and predict isometric scaling relationships between leaf and fine root biomass and among all major biomass production components of individual trees. We also predict that fine root production scales more slowly against increases in leaf production across global forest ecosystems at the stand level. Using meta-analysis, we show fine root biomass scales isometrically against leaf biomass both at the individual tree and stand level. However, despite isometric scaling between stem and coarse root production, fine root production scales against leaf production with a slope of about 0.8 at the stand level, which probably results from more rapid increase of turnover rate in leaves than in fine roots. These analyses help to improve our understandings of allometric theory and controls of belowground C processes.

Original languageEnglish (US)
Pages (from-to)322-331
Number of pages10
JournalEcology letters
Volume22
Issue number2
DOIs
StatePublished - Feb 1 2019

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allometry
fine root
forest ecosystems
forest ecosystem
biomass
leaves
meta-analysis
fine roots
pipes
biomass production
turnover
pipe
stem
stems
prediction
ecosystems
ecosystem

Keywords

  • Allometric scaling
  • carbon allocation
  • carbon cycle
  • fine roots
  • forest ecosystems
  • net primary production
  • pipe model

PubMed: MeSH publication types

  • Letter
  • Meta-Analysis

Cite this

Allometry of fine roots in forest ecosystems. / Chen, Guangshui; Hobbie, Sarah E; Reich, Peter B; Yang, Yusheng; Robinson, David.

In: Ecology letters, Vol. 22, No. 2, 01.02.2019, p. 322-331.

Research output: Contribution to journalLetter

Chen, Guangshui ; Hobbie, Sarah E ; Reich, Peter B ; Yang, Yusheng ; Robinson, David. / Allometry of fine roots in forest ecosystems. In: Ecology letters. 2019 ; Vol. 22, No. 2. pp. 322-331.
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