Wallin, Marcus
- Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
Sammanfattning
Rivers play a crucial role in the transformation and export of carbon (C) to coastal waters, yet limited observations in Australia have hindered accurate C flux estimates. We compiled 27,696 dissolved inorganic C (DIC), 15,012 dissolved organic C (DOC), and 226 particulate organic C (POC) measurements in Australian rivers and combined these with modeled discharge to estimate Australian-scale C export. Annual riverine C export was 19.1 (6.1-47.9) & times; 10(3) Gg C yr(-1), with DIC and DOC exports 2.9 and 2.7 times higher than previous estimates, while POC was 2.6 times lower. The Australian tropics contributed 65%, 39%, and 66% of national DIC, DOC, and POC exports, respectively, despite covering only 11% of exorheic Australia. Within tropical basins, wet-season C export was 158-423 times higher than dry-season C export. These findings underscore the dominant influence of tropical rivers and their strong seasonal pulse on Australia's riverine C export.
Publicerad i
Limnology and Oceanography Letters
2026, volym: 11, nummer: 2, artikelnummer: e70098
Utgivare: WILEY
SLU författare
UKÄ forskningsämne
Oceanografi, hydrologi, vattenresurser
Publikationens identifierare
- DOI: https://doi.org/10.1002/lol2.70098
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/146497