Unified understanding of intrinsic and extrinsic controls of dissolved organic carbon reactivity in aquatic ecosystems
(2022) In Ecology 103(9).- Abstract
Despite our growing understanding of the global carbon cycle, scientific consensus on the drivers and mechanisms that control dissolved organic carbon (DOC) turnover in aquatic systems is lacking, hampered by the mismatch between research that approaches DOC reactivity from either intrinsic (inherent chemical properties) or extrinsic (environmental context) perspectives. Here we propose a conceptual view of DOC reactivity in which the combination of intrinsic and extrinsic factors controls turnover rates and determines which reactions will occur. We review three major types of reactions (biological, photochemical, and flocculation) from an intrinsic chemical perspective and further define the environmental features that modulate the... (More)
Despite our growing understanding of the global carbon cycle, scientific consensus on the drivers and mechanisms that control dissolved organic carbon (DOC) turnover in aquatic systems is lacking, hampered by the mismatch between research that approaches DOC reactivity from either intrinsic (inherent chemical properties) or extrinsic (environmental context) perspectives. Here we propose a conceptual view of DOC reactivity in which the combination of intrinsic and extrinsic factors controls turnover rates and determines which reactions will occur. We review three major types of reactions (biological, photochemical, and flocculation) from an intrinsic chemical perspective and further define the environmental features that modulate the expression of chemically inherent reactivity potential. Finally, we propose hypotheses of how extrinsic and intrinsic factors together shape patterns in DOC turnover across the land-to-ocean continuum, underscoring that there is no intrinsic DOC reactivity without environmental context. By acknowledging the intrinsic–extrinsic control duality, our framework intends to foster improved modeling of DOC reactivity and its impact on ecosystem services.
(Less)
- author
- organization
- publishing date
- 2022-09
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- bioreactivity, dissolved organic carbon, photoreactivity, sorption
- in
- Ecology
- volume
- 103
- issue
- 9
- article number
- e3763
- publisher
- Ecological Society of America
- external identifiers
-
- scopus:85135627881
- pmid:35612376
- ISSN
- 0012-9658
- DOI
- 10.1002/ecy.3763
- language
- English
- LU publication?
- yes
- id
- 38574af3-4e4b-4666-aaa7-64a805c056c4
- date added to LUP
- 2022-11-29 14:45:50
- date last changed
- 2024-04-14 17:23:10
@article{38574af3-4e4b-4666-aaa7-64a805c056c4,
abstract = {{<p>Despite our growing understanding of the global carbon cycle, scientific consensus on the drivers and mechanisms that control dissolved organic carbon (DOC) turnover in aquatic systems is lacking, hampered by the mismatch between research that approaches DOC reactivity from either intrinsic (inherent chemical properties) or extrinsic (environmental context) perspectives. Here we propose a conceptual view of DOC reactivity in which the combination of intrinsic and extrinsic factors controls turnover rates and determines which reactions will occur. We review three major types of reactions (biological, photochemical, and flocculation) from an intrinsic chemical perspective and further define the environmental features that modulate the expression of chemically inherent reactivity potential. Finally, we propose hypotheses of how extrinsic and intrinsic factors together shape patterns in DOC turnover across the land-to-ocean continuum, underscoring that there is no intrinsic DOC reactivity without environmental context. By acknowledging the intrinsic–extrinsic control duality, our framework intends to foster improved modeling of DOC reactivity and its impact on ecosystem services.</p>}},
author = {{Berggren, Martin and Guillemette, François and Bieroza, Magdalena and Buffam, Ishi and Deininger, Anne and Hawkes, Jeffrey A. and Kothawala, Dolly N. and LaBrie, Richard and Lapierre, Jean François and Murphy, Kathleen R. and Al-Kharusi, Enass S. and Rulli, Mayra P.D. and Hensgens, Geert and Younes, Hani and Wünsch, Urban J.}},
issn = {{0012-9658}},
keywords = {{bioreactivity; dissolved organic carbon; photoreactivity; sorption}},
language = {{eng}},
number = {{9}},
publisher = {{Ecological Society of America}},
series = {{Ecology}},
title = {{Unified understanding of intrinsic and extrinsic controls of dissolved organic carbon reactivity in aquatic ecosystems}},
url = {{http://dx.doi.org/10.1002/ecy.3763}},
doi = {{10.1002/ecy.3763}},
volume = {{103}},
year = {{2022}},
}