Linking centennial scale anthropogenic changes and sedimentary records as lessons for urban coastal management

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Amora-Nogueira, LeonardoUniv Fed Fluminense, Brazil; Fluminense Fed Univ UFF, Brazil; Fluminense Fed Univ, Brazil (author)

Linking centennial scale anthropogenic changes and sedimentary records as lessons for urban coastal management

Article/chapterEnglish2023

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ELSEVIER,2023
printrdacarrier

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LIBRIS-ID:oai:DiVA.org:liu-198071
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-198071URI
https://doi.org/10.1016/j.scitotenv.2023.165620DOI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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Funding Agencies|Research Support Foundation of the State of Rio de Janeiro (FAPERJ) [260100016392016, 2033042017]; Council for Research and Scientific Development of Brazil (CNPq) [31015220178, 314995/2020-0]; CNPq; FAPERJ; Australian Research Council [LE140100083]; Swedish Energy Agency [35624-2]; Formas [2021-02429]
Coastal eutrophication and urban flooding are increasingly important components of global change. Although increased seawater renewal by barrier openings and channelizing are common mitigation measures in coastal lagoons worldwide, their effects on these ecosystems are not fully understood. Here, we evaluated the re-lationships between human interventions in the watershed, artificial connections to the sea, and the sediment burial rates in an urban coastal lagoon (Maric & PRIME;a lagoon, Southeastern Brazil). Sediment accretion along with nutrient and carbon burial rates were determined in two sediment cores representing the past-120 years (210Pb dating) and associated with anthropogenic changes as indicated by historical records and geoinformation ana-lyses. Lagoon infilling and eutrophication, expressed by the average sediment accretion, TP, TN, and OC burial rates, respectively, increased-9-18, 13-15, 11-14 and 11-12-fold from the earliest (<1950) to the most recent (2000-2017) period. These multi-proxy records confirm mechanistic links between deforestation, urbanization, and untreated sewage discharges. In addition, our findings reveal artificial connections to the sea may contribute to lagoonal eutrophication and infilling, particularly when not integrated with sewage treatment and forest conservation or reforestation in the watershed. Therefore, increased seawater renewal by physical interventions commonly considered as mitigation measures may in contrast cause severe degradation in coastal lagoons, causing harmful consequences that should be not neglected when implementing management practices.

Subject headings and genre

NATURVETENSKAP Geovetenskap och miljövetenskap Miljövetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Environmental Sciences hsv//eng
Coastal lagoon; Urbanization; Eutrophication; Artificial channels; Sandy barrier opening

Added entries (persons, corporate bodies, meetings, titles ...)

Smoak, Joseph M.Univ S Florida, FL USA (author)
Abuchacra, Rodrigo C.Univ Fed Fluminense, Brazil; State Univ Rio de Janeiro UERJ FFP, Brazil (author)
Carvalho, CarlaFluminense Fed Univ, Brazil (author)
Ribeiro, Fernando C. A.Inst Radiat Protect & Dosimetry IRD, Brazil (author)
Martins, Kevin C.Univ Fed Fluminense, Brazil; Fluminense Fed Univ, Brazil (author)
Fonseca-Oliveira, Ana L.Univ Fed Fluminense, Brazil; Fluminense Fed Univ UFF, Brazil; Fluminense Fed Univ, Brazil (author)
Carvalho, ManuelaUniv Fed Fluminense, Brazil; Fluminense Fed Univ UFF, Brazil (author)
Machado, Luiza P.Univ Fed Fluminense, Brazil; Fluminense Fed Univ UFF, Brazil (author)
Souza, Allana F. F.Univ Fed Fluminense, Brazil; Fluminense Fed Univ UFF, Brazil; Fluminense Fed Univ, Brazil (author)
da Silva, Andre L. C.State Univ Rio de Janeiro UERJ FFP, Brazil (author)
Enrich Prast, AlexLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten(Swepub:liu)aleen07 (author)
Oliveira, Vinicius P.Univ Fed Rio de Janeiro, Brazil (author)
Sanders, Christian J.Southern Cross Univ, Australia (author)
Sanders, Luciana M.Southern Cross Univ, Australia (author)
Marotta, HumbertoUniv Fed Fluminense, Brazil; Fluminense Fed Univ UFF, Brazil; Fluminense Fed Univ, Brazil; State Univ Rio de Janeiro UERJ FFP, Brazil (author)
Univ Fed Fluminense, Brazil; Fluminense Fed Univ UFF, Brazil; Fluminense Fed Univ, BrazilUniv S Florida, FL USA (creator_code:org_t)

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In:Science of the Total Environment: ELSEVIER9020048-96971879-1026

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By the author/editor: Amora-Nogueira, ...; Smoak, Joseph M.; Abuchacra, Rodri ...; Carvalho, Carla; Ribeiro, Fernand ...; Martins, Kevin C ...; show more...; Fonseca-Oliveira ...; Carvalho, Manuel ...; Machado, Luiza P ...; Souza, Allana F. ...; da Silva, Andre ...; Enrich Prast, Al ...; Oliveira, Vinici ...; Sanders, Christi ...; Sanders, Luciana ...; Marotta, Humbert ...; show less...

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

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By the university: Linköping University

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