Methane emissions from tree stems

a new frontier in the global carbon cycle

Josep Barba, Mark A. Bradford, Paul E. Brewer, Dan Bruhn, Kristofer Covey, Joost L M Van Haren, J.  Patrick Megonigal, Teis Nørgaard Mikkelsen, Sunitha R. Pangala, Mari Pihlatie, Ben Poulter, Albert Rivas-Ubach, Christopher W. Schadt, Kazuhiko Terazawa, Daniel L. Warner, Zhen Zhang, Rodrigo Vargas

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Tree stems from wetland, floodplain and upland forests can produce and emit methane (CH4). Tree CH4 stem emissions have high spatial and temporal variability, but there is no consensus on the biophysical mechanisms that drive stem CH4 production and emissions. Here, we summarize up to 30 opportunities and challenges for stem CH4 emissions research, which, when addressed, will improve estimates of the magnitudes, patterns and drivers of CH4 emissions and trace their potential origin. We identified the need: (1) for both long-term, high-frequency measurements of stem CH4 emissions to understand the fine-scale processes, alongside rapid large-scale measurements designed to understand the variability across individuals, species and ecosystems; (2) to identify microorganisms and biogeochemical pathways associated with CH4 production; and (3) to develop a mechanistic model including passive and active transport of CH4 from the soil–tree–atmosphere continuum. Addressing these challenges will help to constrain the magnitudes and patterns of CH4 emissions, and allow for the integration of pathways and mechanisms of CH4 production and emissions into process-based models. These advances will facilitate the upscaling of stem CH4 emissions to the ecosystem level and quantify the role of stem CH4 emissions for the local to global CH4 budget.

Original languageEnglish (US)
JournalNew Phytologist
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Carbon Cycle
Methane
methane
Ecosystem
stems
Wetlands
Active Biological Transport
Budgets
methane production
Research
carbon cycle
active transport
ecosystems
mechanistic models
floodplains
wetlands
Forests

Keywords

  • CH transport
  • methane emissions
  • methanogenesis
  • spatial variability
  • temporal variability
  • tree stems
  • upland forests
  • wetland forests

ASJC Scopus subject areas

  • Physiology
  • Plant Science

Cite this

Barba, J., Bradford, M. A., Brewer, P. E., Bruhn, D., Covey, K., Van Haren, J. L. M., ... Vargas, R. (Accepted/In press). Methane emissions from tree stems: a new frontier in the global carbon cycle. New Phytologist. https://doi.org/10.1111/nph.15582

Methane emissions from tree stems : a new frontier in the global carbon cycle. / Barba, Josep; Bradford, Mark A.; Brewer, Paul E.; Bruhn, Dan; Covey, Kristofer; Van Haren, Joost L M; Megonigal, J.  Patrick; Mikkelsen, Teis Nørgaard; Pangala, Sunitha R.; Pihlatie, Mari; Poulter, Ben; Rivas-Ubach, Albert; Schadt, Christopher W.; Terazawa, Kazuhiko; Warner, Daniel L.; Zhang, Zhen; Vargas, Rodrigo.

In: New Phytologist, 01.01.2018.

Research output: Contribution to journalArticle

Barba, J, Bradford, MA, Brewer, PE, Bruhn, D, Covey, K, Van Haren, JLM, Megonigal, JP, Mikkelsen, TN, Pangala, SR, Pihlatie, M, Poulter, B, Rivas-Ubach, A, Schadt, CW, Terazawa, K, Warner, DL, Zhang, Z & Vargas, R 2018, 'Methane emissions from tree stems: a new frontier in the global carbon cycle', New Phytologist. https://doi.org/10.1111/nph.15582
Barba, Josep ; Bradford, Mark A. ; Brewer, Paul E. ; Bruhn, Dan ; Covey, Kristofer ; Van Haren, Joost L M ; Megonigal, J.  Patrick ; Mikkelsen, Teis Nørgaard ; Pangala, Sunitha R. ; Pihlatie, Mari ; Poulter, Ben ; Rivas-Ubach, Albert ; Schadt, Christopher W. ; Terazawa, Kazuhiko ; Warner, Daniel L. ; Zhang, Zhen ; Vargas, Rodrigo. / Methane emissions from tree stems : a new frontier in the global carbon cycle. In: New Phytologist. 2018.
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