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Artículo

Characterization of Nothofagus pumilio (Lenga) understory in managed and unmanaged forests of central Patagonia, Argentina

Silva, Patricia ValeriaIcon ; Quinteros, Claudia PamelaIcon ; Greslebin, Alina GabrielaIcon ; Bava, Jose Omar; Defossé, Guillermo EmilioIcon
Fecha de publicación: 04/2017
Editorial: Soc Amer Foresters
Revista: Forest Science
ISSN: 0015-749X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas; Agricultura

Resumen

In managed forests, biodiversity conservation is crucial for the sustainable use of ecosystem resources. In the Patagonian-Andes forests of Argentina, lenga (Nothofagus pumilio) is the most important native tree because of its ecological functions and economic importance as a timber provider. In this study, we determined how the shelterwood-cut system impacts understory vegetation attributes in three sites representing typical lenga forests of central Andean-Patagonia. In each site, two 250-m2 treatment plots (managed and unmanaged) were established, and canopy cover, soil temperature, and moisture were determined. Within plots in 10 randomly placed 0.25-m2 microplots, we determined plant cover, from which we calculated diversity attributes. Canopy cover and soil moisture were higher in unmanaged treatments, whereas the reverse was true for soil temperature. The Shannon-Wiener index showed similar values (~1), whereas species richness was slightly higher in unmanaged (4.8 < 0.5) than in managed treatments (3.8 < 0.3). Generally, native plants dominated the understory (~40%), whereas exotic species were rare (~1%). Shrub cover was higher in managed (24.1 < 4.2) than in unmanaged (9.5 < 1.7) treatments, whereas herbaceous species dominated unmanaged forests. These results confirm that the shelterwood-cut system may be used for diversity conservation in Patagonian lenga forests.
Palabras clave: Diversity , Forest Harvesting , Lenga , Shelterwood-Cut System , Understory Vegetation
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/72659
URL: https://academic.oup.com/forestscience/article/63/2/173/4584069
DOI: https://doi.org/10.5849/forsci.15-156
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Silva, Patricia Valeria; Quinteros, Claudia Pamela; Greslebin, Alina Gabriela; Bava, Jose Omar; Defossé, Guillermo Emilio; Characterization of Nothofagus pumilio (Lenga) understory in managed and unmanaged forests of central Patagonia, Argentina; Soc Amer Foresters; Forest Science; 63; 2; 4-2017; 173-183
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