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 language | English (US) |
|---|---|
| Pages (from-to) | 322-331 |
| Number of pages | 10 |
| Journal | Ecology letters |
| Volume | 22 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 1 2019 |
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Keywords
- Allometric scaling
- carbon allocation
- carbon cycle
- fine roots
- forest ecosystems
- net primary production
- pipe model
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 journal › Letter
}
TY - JOUR
T1 - Allometry of fine roots in forest ecosystems
AU - Chen, Guangshui
AU - Hobbie, Sarah E
AU - Reich, Peter B
AU - Yang, Yusheng
AU - Robinson, David
PY - 2019/2/1
Y1 - 2019/2/1
N2 - 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.
AB - 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.
KW - Allometric scaling
KW - carbon allocation
KW - carbon cycle
KW - fine roots
KW - forest ecosystems
KW - net primary production
KW - pipe model
UR - http://www.scopus.com/inward/record.url?scp=85057894544&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85057894544&partnerID=8YFLogxK
U2 - 10.1111/ele.13193
DO - 10.1111/ele.13193
M3 - Letter
VL - 22
SP - 322
EP - 331
JO - Ecology Letters
JF - Ecology Letters
SN - 1461-023X
IS - 2
ER -