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Vegetation and landscape around Lake Montcortès (Catalan pre-Pyrenees) as a tool for palaeoecological studies of lake sediments

Authors: Mercadé, Arnau; Vigo, Josep; Rull, Valentí; Vegas-Vilarrúbia, Teresa; Garcés-Pastor, Sandra; Cañellas-Boltà, Núria;

Vegetation and landscape around Lake Montcortès (Catalan pre-Pyrenees) as a tool for palaeoecological studies of lake sediments

Abstract

[ES]El lago de Montcortès (42º 19′ N, 0º 59′ E; 1027 m altitud) posee sedimentos con laminaciones anuales, ideales para estudios paleoecológicos de alta resolución. Para el análisis palinológico de estos sedimentos, es necesario conocer en detalle la vegetación local, como fuente del polen sedimentario. El objetivo de este estudio es reconocer y cartografiar los tipos de vegetación presentes alrededor del lago, para lo cual se delimitó un área rectangular de unas 48 ha. Del estudio florístico de este espacio resultó un catálogo de 534 especies, que sirvió de base para el análisis de vegetación. Para ello, se llevaron a cabo 42 inventarios fitosociológicos, que se utilizaron para elaborar una síntesis del paisaje vegetal mediante cartografía digital. Como resultado, se obtuvieron 52 unidades de vegetación, expresión concreta de los hábitats CORINE definidos en la lista de los hábitats de Cataluña. Cada una de estas unidades se describió con criterios florísticos, fisionómicos, fitogeográficos, ambientales y de uso humano. La siguiente etapa consistirá en el estudio palinológico de las especies más representativas de los tipos de vegetación y hábitats establecidos aquí, con el fin de optimizar las interpretaciones paleoecológicas futuras

[EN]Lake Montcortès (42º 19′ N, 0º 59′ E; 1027 m elevation) is an excellent target for high resolution palaeoecological studies because its annually-laminated sediments extending back to the early-middle Holocene. The detailed knowledge of present vegetation patterns around the lake and the pollen they release to lake sediments is essential for a reliable interpretation of past vegetation dynamics. This study aims to identify and map the vegetation types currently growing around the lake. For this purpose, a quadrangular area of ca. 48 ha was defined. The floristic study resulted in a catalogue of 534 species. Vegetation analysis was based on 42 phytosociological inventories used to synthesise and map the relevant plant landscape units. As a result, we obtained 52 vegetation units as expressions of the CORINE habitats previously defined for Catalonia. Each of these habitats was described in floristic, physiognomic, phytogeographic, environmental and human-use terms. The next step will be the palynological study of the more representative species of the described vegetation types, as a means to optimise future palynological interpretations.

This research is supported by projects POLMONT (V. Rull and J. Vigo, responsible investigators), funded by the Institut d’Estudis Catalans (IEC), and MONTCORTÈS-500 (CGL2012-33665; T. Vegas-Vilarrúbia, responsible investigator), funded by the Spain’s Ministry of Economy and Competitiveness. The study is sponsored by the Ajuntament del Baix Pallars, at Gerri de la Sal.

15 p., gráf., fot.

Peer reviewed

Keywords

Catalan Pyrenees, Habitat mapping, Pirineos catalanes, Lago de Montcortès, Vegetation, Paleoecología, Flora, Palaeoecology, Palinología, Vegetación, Mapa de hábitats, Palynology, Lake Montcortès

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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