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Title

A six thousand year record of climate and land-use change from Mediterranean seagrass mats

AuthorsLópez Merino, Lourdes; Colás-Ruiz, Nieves R.; Adame, María Fernanda; Serrano, Oscar CSIC ORCID; Martínez Cortizas, Antonio; Mateo, Miguel Ángel CSIC ORCID
KeywordsPosidonia oceanica
Soil erosion
Ecosystem services
Glomalin-related soil protein
Magnetic susceptibility
Microcharcoal
Palaeoecology and land use history
Palynology
Issue Date2017
PublisherWiley-Blackwell
CitationJournal of Ecology : DOI:10.1111/1365-2745.12741 (2017)
Abstract1. The Mediterranean seagrass Posidonia oceanica maintains a biodiverse ecosystem and it is a worldwide important carbon sink. It grows for millennia, accumulating organic-rich soils (mats) beneath the meadows. This marine habitat is protected by the European Union; however, it is declining rapidly due to coastal development. Understanding its response to disturbances could inform habitat restoration, but many environmental impacts predate monitoring programs (<50 years). 2. This research explores the palaeoecological potential of Posidonia mats to reconstruct six thousand years of environmental change that could have affected Posidonia meadows and, in turn, left an imprint on the mats. 3. Palynological, microcharcoal, magnetic susceptibility and glomalin-related soil protein (GRSP) analyses on Posidonia mats enabled us to detect climate- and humaninduced environmental processes impacting on the seagrass during the Late Holocene. 4. The pollen and microcharcoal records reconstructed anthropogenic disturbances attributed to agriculture. The record of GRSP shows that agrarian activities affected continental soil quality. Changes in magnetic susceptibility reveal that enhanced soil erosion was caused by both climate (major flooding events in the NW Mediterranean) and humans (cultivation) which impacted on the Posidonia mat. Finally, increased
DescriptionContiene 1 tabla, 7 figuras
Publisher version (URL)http://dx.doi.org/10.1111/1365-2745.12741
URIhttp://hdl.handle.net/10261/142912
DOI10.1111/1365-2745.12741
ISSN0022-0477
E-ISSN1365-2745
Appears in Collections:(CEAB) Artículos




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