Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion approach

Yiqi Luo, Luther W. White, Josep G. Canadell, Evan H. DeLucia, David S. Ellsworth, Adrien Finzi, John Lichter, William H. Schlesinger

Research output: Contribution to journalArticle

Abstract

A sound understanding of the sustainability of terrestrial carbon (C) sequestration is critical for the success of any policies geared toward stabilizing atmospheric greenhouse concentrations. This includes the Kyoto Protocol and/or other greenhouse strategies implemented by individual countries. However, the sustainability of C sinks and pools has not been carefully studied with either empirical or theoretical approaches. This study was intended to develop a conceptual framework to define the sustainability based on C influx and residence time (τ). The latter τ quantifies the capacity for C storage in various plant and soil pools. We estimated τ via inverse analysis of multiple data sets from a Free-Air CO 2 Enrichment (FACE) experiment in Duke Forest, North Carolina, United States. This study suggested that estimated residence times at elevated CO 2 decreased for plant C pools and increased for litter and soil pools in comparison to those at ambient CO 2 . The ensemble of the residence times from all the pools at elevated CO 2 , however, was well correlated with that at ambient CO 2 . We then used the estimated residence times, combined with C influx, to simulate C sequestration rates in response to a gradual increase in atmospheric CO 2 concentration (C a ). The simulated C sequestration rate gradually increased from 69 g m -2 yr -1 in 2000 when C a was 378 ppm to 201 g m -2 yr -1 in 2100 when C a was at 710 ppm. Thus, the current evidence from both experimental observations and inverse analysis suggested that C sequestration in the forest ecosystem was likely to increase gradually as C a gradually increase. The model projection of the C sequestration will improve as more data on long-term processes become available in coming years. In addition, such a modeled increase in terrestrial C sequestration is too small to balance the anthropogenic C emission.

Original languageEnglish (US)
Pages (from-to)21-1 - 21-13
JournalGlobal Biogeochemical Cycles
Volume17
Issue number1
DOIs
StatePublished - Mar 2003

Fingerprint

Carbon Monoxide
carbon sequestration
Sustainable development
Carbon
sustainability
residence time
inverse analysis
Greenhouses
Soils
Kyoto Protocol
conceptual framework
Ecosystems
forest ecosystem
inversion
litter
soil
Acoustic waves
carbon
air
Air

Keywords

  • Carbon residence time
  • Free-Air CO enrichment (FACE)
  • Inverse analysis
  • Modeling
  • Sustainability
  • Terrestrial carbon sink

ASJC Scopus subject areas

  • Global and Planetary Change
  • Environmental Chemistry
  • Environmental Science(all)
  • Atmospheric Science

Cite this

Luo, Y., White, L. W., Canadell, J. G., DeLucia, E. H., Ellsworth, D. S., Finzi, A., ... Schlesinger, W. H. (2003). Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion approach. Global Biogeochemical Cycles, 17(1), 21-1 - 21-13. https://doi.org/10.1029/2002GB001923

Sustainability of terrestrial carbon sequestration : A case study in Duke Forest with inversion approach. / Luo, Yiqi; White, Luther W.; Canadell, Josep G.; DeLucia, Evan H.; Ellsworth, David S.; Finzi, Adrien; Lichter, John; Schlesinger, William H.

In: Global Biogeochemical Cycles, Vol. 17, No. 1, 03.2003, p. 21-1 - 21-13.

Research output: Contribution to journalArticle

Luo, Y, White, LW, Canadell, JG, DeLucia, EH, Ellsworth, DS, Finzi, A, Lichter, J & Schlesinger, WH 2003, 'Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion approach', Global Biogeochemical Cycles, vol. 17, no. 1, pp. 21-1 - 21-13. https://doi.org/10.1029/2002GB001923
Luo, Yiqi ; White, Luther W. ; Canadell, Josep G. ; DeLucia, Evan H. ; Ellsworth, David S. ; Finzi, Adrien ; Lichter, John ; Schlesinger, William H. / Sustainability of terrestrial carbon sequestration : A case study in Duke Forest with inversion approach. In: Global Biogeochemical Cycles. 2003 ; Vol. 17, No. 1. pp. 21-1 - 21-13.
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