Organic carbon in wet deposition of an urbanized coastal bay, North China: Flux, sources and biogeochemical implications.
Mar Pollut Bull
; 201: 116158, 2024 Apr.
Article
en En
| MEDLINE
| ID: mdl-38430676
ABSTRACT
The process of atmospheric organic carbon (OC) entering the ocean through wet deposition plays a crucial role in the global carbon cycle. To gain insights into the biogeochemical dynamics of OC at the land-sea margin, we conducted an extensive four-year investigation on precipitation OC in Jiaozhou Bay (JZB). The results showed that the volume-weighted mean concentration of particulate OC (POC) and dissolved OC (DOC) in precipitation were 0.38 and 2.06 mg C L-1 with an average wet deposition flux of OC for 2666.5 mg C m-2 yr-1. The source of POC in precipitation is predominantly by the C3 plant emission and burning and fossil fuel combustion. Wet deposition contributed 986.6 t yr-1 of OC of which 506.3 t yr-1 of bioavailable DOC, which could have significant implications for carbon cycle in the JZB. This study could enhance the understanding of the marine atmospheric OC in coastal areas.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Carbono
/
Bahías
País/Región como asunto:
Asia
Idioma:
En
Revista:
Mar Pollut Bull
/
Mar. pollut. bull
/
Marine pollution bulletin
Año:
2024
Tipo del documento:
Article
País de afiliación:
China