River ecosystem metabolism and carbon biogeochemistry in a changing world

Tom J. Battin, Ronny Lauerwald, Emily S. Bernhardt, Enrico Bertuzzo, Lluís Gómez Gener, Robert O. Hall, Erin R. Hotchkiss, Taylor Maavara, Tamlin M. Pavelsky, Lishan Ran, Peter Raymond, Judith A. Rosentreter, Pierre Regnier

Research output: Contribution to journalReview articlepeer-review

94 Scopus citations


River networks represent the largest biogeochemical nexus between the continents, ocean and atmosphere. Our current understanding of the role of rivers in the global carbon cycle remains limited, which makes it difficult to predict how global change may alter the timing and spatial distribution of riverine carbon sequestration and greenhouse gas emissions. Here we review the state of river ecosystem metabolism research and synthesize the current best available estimates of river ecosystem metabolism. We quantify the organic and inorganic carbon flux from land to global rivers and show that their net ecosystem production and carbon dioxide emissions shift the organic to inorganic carbon balance en route from land to the coastal ocean. Furthermore, we discuss how global change may affect river ecosystem metabolism and related carbon fluxes and identify research directions that can help to develop better predictions of the effects of global change on riverine ecosystem processes. We argue that a global river observing system will play a key role in understanding river networks and their future evolution in the context of the global carbon budget.

Original languageEnglish
Pages (from-to)449-459
Number of pages11
Issue number7944
StatePublished - Jan 19 2023


  • Carbon Cycle
  • Carbon Dioxide/analysis
  • Carbon Sequestration
  • Ecosystem
  • Greenhouse Gases/analysis
  • Rivers


Dive into the research topics of 'River ecosystem metabolism and carbon biogeochemistry in a changing world'. Together they form a unique fingerprint.

Cite this