Dynamics and fate of blue carbon in a mangrove-seagrass seascape: influence of landscape configuration and land-use change

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Dynamics and fate of blue carbon in a mangrove-seagrass seascape : influence of landscape configuration and land-use change

Asplund, Maria. E., 1970 (author): Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Kristineberg,Department of Biological and Environmental Sciences, Kristineberg,University of Gothenburg, Sweden

Dahl, Martin (author): Stockholms universitet,Institutionen för ekologi, miljö och botanik

Ismail, Rashid O. (author): Stockholms universitet,Institutionen för ekologi, miljö och botanik,University of Dar es Salaam, Tanzania

Arias-Ortiz, Ariane (author): Autonomous University of Barcelona, Spain; University of California Berkeley, USA

Deyanova, Diana (author): Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Kristineberg,Department of Biological and Environmental Sciences, Kristineberg,University of Gothenburg, Sweden,University of Dodoma, Tanzania,Wildlife Conservation Society, Madagascar; Macquarie University, Australia

Franco, Joao N. (author): Universidade do PortoUniversidade do Porto, Portugal; Polytechnic Institute of Leiria, Portugal

Hammar, Linus (author): Octopus Ink Research and Analysis, Sweden

Hoamby, Arielle, I (author): de l’Université de Toliara, Madagascar; Wildlife Conservation Society, Madagascar

Linderholm, Hans W., 1968 (author): Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,University of Gothenburg, Sweden

Lyimo, Liberatus D. (author): University of Dodoma, Tanzania

Perry, Diana (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för akvatiska resurser,Department of Aquatic Resources,Swedish University of Agricultural Sciences, Sweden

Rasmusson, Lina M. (author): Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,University of Gothenburg, Sweden

Ridgway, Samantha N. (author): Edith Cowan University, Australia

Gispert, Gloria Salgado (author): Edith Cowan University, Australia

D'Agata, Stephanie (author): Wildlife Conservation Society, Madagascar; Macquarie University, Australia

Glass, Leah (author): Blue Ventures Conservat, Madagascar

Mahafina, Jamal Angelot (author): de l’Université de Toliara, Madagascar

Ramahery, Volanirina (author): Nexus Madagascar Company, Madagascar

Masque, Pere (author): Universitat Autònoma de Barcelona, Spain; Edith Cowan University, Australia; International Atomic Energy Agency, Monaco

Björk, Mats (author): Stockholms universitet,Institutionen för ekologi, miljö och botanik

Gullström, Martin (author): Södertörns högskola,Miljövetenskap

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2021-03-01
2021
English.
In: Landscape Ecology. - : Springer. - 0921-2973 .- 1572-9761. ; 36, s. 1489-1509

Related links:: https://doi.org/10.1...; show more...; https://link.springe...; https://pub.epsilon.... (primary) (Raw object) (free); https://urn.kb.se/re...; https://doi.org/10.1...; https://res.slu.se/i...; https://gup.ub.gu.se...; https://urn.kb.se/re...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

Context Seagrass meadows act as efficient natural carbon sinks by sequestering atmospheric CO2 and through trapping of allochthonous organic material, thereby preserving organic carbon (C-org) in their sediments. Less understood is the influence of landscape configuration and transformation (land-use change) on carbon sequestration dynamics in coastal seascapes across the land-sea interface. Objectives We explored the influence of landscape configuration and degradation of adjacent mangroves on the dynamics and fate of C-org in seagrass habitats. Methods Through predictive modelling, we assessed sedimentary C-org content, stocks and source composition in multiple seascapes (km-wide buffer zones) dominated by different seagrass communities in northwest Madagascar. The study area encompassed seagrass meadows adjacent to intact and deforested mangroves. Results The sedimentary C-org content was influenced by a combination of landscape metrics and inherent habitat plant- and sediment-properties. We found a strong land-to-sea gradient, likely driven by hydrodynamic forces, generating distinct patterns in sedimentary C-org levels in seagrass seascapes. There was higher C-org content and a mangrove signal in seagrass surface sediments closer to the deforested mangrove area, possibly due to an escalated export of C-org from deforested mangrove soils. Seascapes comprising large continuous seagrass meadows had higher sedimentary C-org levels in comparison to more diverse and patchy seascapes. Conclusion Our results emphasize the benefit to consider the influence of seascape configuration and connectivity to accurately assess C-org content in coastal habitats. Understanding spatial patterns of variability and what is driving the observed patterns is useful for identifying carbon sink hotspots and develop management prioritizations.

Subject headings

NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
NATURVETENSKAP -- Biologi (hsv//swe)
NATURAL SCIENCES -- Biological Sciences (hsv//eng)

Keyword

Seascape connectivity
Land&#8211
sea interface
Mangrove deforestation
Seagrass meadows
Sedimentary carbon storage
Seascape connectivity Land–sea interface Mangrove deforestation Seagrass meadows Sedimentary carbon storage

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NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Ecology

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Physical Geograp ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Environmental Sc ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...

NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...

Articles in the publication: Landscape Ecolog ...

By the university: Södertörn University; Swedish University of Agricultural Sciences; University of Gothenburg; Stockholm University

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