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• W2887457658 abstract "espanolRESUMEN La puna es un ecosistema ubicado en la meseta del desierto por encima de 3.500 msnm en la Cordillera de los Andes que cubre partes del noreste de Chile, el noroeste de Argentina, el sureste de Peru y el medio oeste de Bolivia, entre los 15 ° y 28 ° sur. Laguna Lejia es un lago poco profundo situado en una cuenca endorreica, con un clima de gran altura de estepa, con grandes variaciones de temperaturas. Las precipitaciones se concentran en el verano; la evaporacion es muy alta y la humedad relativa del medio ambiente es muy baja. El objetivo de este estudio fue caracterizar la flora y las asociaciones vegetacionales presentes en este ecosistema arido. Se realizo una recoleccion intensiva en 2008, con los siguientes productos: (a) un catalogo de flora, de origen fitogeografico, formas de vida, endemismo y estado de conservacion; (b) un catalogo fitosociologico, y la caracterizacion de las comunidades de plantas con su diversidad alfa y beta. Se registraron treinta especies de plantas vasculares, todas nativas. Se identificaron dos asociaciones vegetales: Pappostipa-Deyeuxia (matorral alto andino) y Puccinellia-Calandrinia; que corresponden respectivamente a la estepa subdesertico de la puna de Atacama; y la vegetacion azonal esta asociada con el humedal Laguna Lejia. Los resultados justifican la designacion del area como un sitio prioritario para la conservacion de la biodiversidad. EnglishABSTRACT The puna is an ecosystem located in the desert plateau above 3500 m elevation in the Andes Range that covers parts of north- eastern Chile, north-western Argentina, south-eastern Peru and mid-western Bolivia between 15° and 28° S latitude. Laguna Lejia is a shallow lake set in an endorheic basin, with high altitude steppe climate type, low temperatures and wide diurnal variation. Precipitation is concentrated in the summer; evaporation is very high and the relative humidity of the environment very low. The object of this study was to characterise the flora and plant associations present in this high, arid ecosystem. Intensive collecting and surveying was carried out in 2008, with the following products: (a) a catalogue of flora, including phytogeographic origin, life form, endemism and conservation state; (b) a phytosociological catalogue, and the characterization of the plant communities with their alpha and beta diversity. Thirty species of vascular plants were recorded, all native. Two plant associations were identified: Pappostipa-Deyeuxia (high Andean scrub) and Puccinellia-Calandrinia, corresponding respectively to the sub-desert steppe of the Atacama puna and the azonal vegetation associated with the Laguna Lejia wetland. The results justify the designation of the area as a priority conservation site for biodiversity by the government." @default.
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• W2887457658 date "2018-01-01" @default.
• W2887457658 modified "2023-10-01" @default.
• W2887457658 title "Flora and vegetation of Lejía lagoon, a desert ecosystem of the high Puna in northern Chile" @default.
• W2887457658 doi "https://doi.org/10.4067/s0718-34292018005000402" @default.
• W2887457658 hasPublicationYear "2018" @default.
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