Aquatic export of young dissolved and gaseous carbon from a pristine boreal fen: Implications for peat carbon stock stability

Sammanfattning

The stability of northern peatland's carbon (C) store under changing climate is of major concern for the global C cycle. The aquatic export of C from boreal peatlands is recognized as both a critical pathway for the remobilization of peat C stocks as well as a major component of the net ecosystem C balance (NECB). Here, we present a full year characterization of radiocarbon content (C-14) of dissolved organic carbon (DOC), carbon dioxide (CO2), and methane (CH4) exported from a boreal peatland catchment coupled with C-14 characterization of the catchment's peat profile of the same C species. The age of aquatic C in runoff varied little throughout the year and appeared to be sustained by recently fixed C from the atmosphere (

Nyckelord

aquatic C export; carbon dioxide; dissolved organic carbon; methane; northern peatlands; radiocarbon dating

Publicerad i

Global Change Biology
2017, volym: 23, nummer: 12, sidor: 5523-5536
Utgivare: WILEY

SLU författare

• Bishop, Kevin

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

• Laudon, Hjalmar

  • Institutionen för skogens ekologi och skötsel, Sveriges lantbruksuniversitet
    

• Leach, Jason

  • Simon Fraser University

• Nilsson, Mats

  • Institutionen för skogens ekologi och skötsel, Sveriges lantbruksuniversitet
    

• Öquist, Mats

  • Institutionen för skogens ekologi och skötsel, Sveriges lantbruksuniversitet
    

• Wallin, Marcus

  • Uppsala universitet

Globala målen (SDG)

SDG13 Bekämpa klimatförändringarna
SDG14 Hav och marina resurser

UKÄ forskningsämne

Miljövetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1111/gcb.13815

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/93158