Altitudinal vegetation belts in the high-Andes of central Chile (33°S)

The limits of alpine vegetation belts have been established mainly based on physiognomic criteria. However, a more objective approach for fixing limits of vegetation belts are methods based on species composition and relative abundance of each species. While these methods are more time consuming, th...

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Autores principales:	Cavieres,Lohengrin A., Peñaloza,Alejandro, Kalin Arroyo,Mary
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2000
Materias:	altitudinal vegetation belts alpine vegetation Andes central Chile cluster analysis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000200008
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spelling	oai:scielo:S0716-078X20000002000082001-07-24Altitudinal vegetation belts in the high-Andes of central Chile (33°S)Cavieres,Lohengrin A.Peñaloza,AlejandroKalin Arroyo,Mary altitudinal vegetation belts alpine vegetation Andes central Chile cluster analysis The limits of alpine vegetation belts have been established mainly based on physiognomic criteria. However, a more objective approach for fixing limits of vegetation belts are methods based on species composition and relative abundance of each species. While these methods are more time consuming, they are more detailed and permit the detection of physical factors affecting the limits of vegetation belts. In this paper we: 1) describe the altitudinal changes of vegetation above timberline, 2) compare vegetation belts defined with physiognomy and two floristic methods (a qualitative one based on altitudinal changes in species composition, and a quantitative one based on changes in dominant species); and 3) detect some environmental factors responsible for the altitudinal distribution of alpine vegetation between 2100 and 3700 masl in the Andes of Santiago, central Chile (33°S). There was a complete agreement between the different methods in delimiting the subalpine belt. However, in the lower alpine belt (the cushion's belt) floristic methods subdivided it in 2-3 sub-belts. In the floristic methods, elevations 3500-3700 that formed the higher alpine belt segregated in separate ways because they have no species in common. Physiognomic descriptions lose relevant information about species distribution, especially at higher elevations. Mean annual temperature and nitrogen content of soil are the main environmental factors affecting the altitudinal limits of vegetation belts in the central Chilean Andesinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.73 n.2 20002000-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000200008en10.4067/S0716-078X2000000200008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	altitudinal vegetation belts alpine vegetation Andes central Chile cluster analysis
spellingShingle	altitudinal vegetation belts alpine vegetation Andes central Chile cluster analysis Cavieres,Lohengrin A. Peñaloza,Alejandro Kalin Arroyo,Mary Altitudinal vegetation belts in the high-Andes of central Chile (33°S)
description	The limits of alpine vegetation belts have been established mainly based on physiognomic criteria. However, a more objective approach for fixing limits of vegetation belts are methods based on species composition and relative abundance of each species. While these methods are more time consuming, they are more detailed and permit the detection of physical factors affecting the limits of vegetation belts. In this paper we: 1) describe the altitudinal changes of vegetation above timberline, 2) compare vegetation belts defined with physiognomy and two floristic methods (a qualitative one based on altitudinal changes in species composition, and a quantitative one based on changes in dominant species); and 3) detect some environmental factors responsible for the altitudinal distribution of alpine vegetation between 2100 and 3700 masl in the Andes of Santiago, central Chile (33°S). There was a complete agreement between the different methods in delimiting the subalpine belt. However, in the lower alpine belt (the cushion's belt) floristic methods subdivided it in 2-3 sub-belts. In the floristic methods, elevations 3500-3700 that formed the higher alpine belt segregated in separate ways because they have no species in common. Physiognomic descriptions lose relevant information about species distribution, especially at higher elevations. Mean annual temperature and nitrogen content of soil are the main environmental factors affecting the altitudinal limits of vegetation belts in the central Chilean Andes
author	Cavieres,Lohengrin A. Peñaloza,Alejandro Kalin Arroyo,Mary
author_facet	Cavieres,Lohengrin A. Peñaloza,Alejandro Kalin Arroyo,Mary
author_sort	Cavieres,Lohengrin A.
title	Altitudinal vegetation belts in the high-Andes of central Chile (33°S)
title_short	Altitudinal vegetation belts in the high-Andes of central Chile (33°S)
title_full	Altitudinal vegetation belts in the high-Andes of central Chile (33°S)
title_fullStr	Altitudinal vegetation belts in the high-Andes of central Chile (33°S)
title_full_unstemmed	Altitudinal vegetation belts in the high-Andes of central Chile (33°S)
title_sort	altitudinal vegetation belts in the high-andes of central chile (33°s)
publisher	Sociedad de Biología de Chile
publishDate	2000
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000200008
work_keys_str_mv	AT caviereslohengrina altitudinalvegetationbeltsinthehighandesofcentralchile33s AT penalozaalejandro altitudinalvegetationbeltsinthehighandesofcentralchile33s AT kalinarroyomary altitudinalvegetationbeltsinthehighandesofcentralchile33s
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Altitudinal vegetation belts in the high-Andes of central Chile (33°S)

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