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A VEGETATION MAP OF NEVADOS DE CHILLAN VOLCANIC COMPLEX, BIO-BIO REGION, CHILE

DOI: 10.4067/S0717-66432008000200007

Keywords: southern andes, vegetation cartography, photo-interpretation, termas de chillan.

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Abstract:

a vegetation survey of the andeannevados de chillan volcanic complex, bio-bio region, chile, resulted in the preparation of a colour vegetation map, based on photo-interpretation of an aerial photograph of 1998. classification followed a divisive method and combined physiognomic, floristic, and pedologic criteria. it resulted in eleven distinguishable vegetation units: (1) nothofagus dombeyi forest, (2) n. pumilio forest, (3) nothofagus mixed forest, (4) n. pumilio krummholz, (5) n. antárctica krummholz, assemblages of (6)adesmia emarginata-pozoa coriácea, (l)adesmia emarginata-berberis empetrifolia, (k) adesmia emarginata-loasa lateritia, (9) chusquea culeou-cokones, and (10) caltha sagittata-mimulus luteus, and the (11) nassauvia revoluta-poa obvallata assemblage which builds the upper vegetational belt. the study area's vegetation, located in the mediterranean-temperate transition zone, shows a higher floristic affinity to temperate regions' vegetation.

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