INVESTIGADORES
LENCINAS maria vanessa
congresos y reuniones científicas
Título:
Adaptive forest management for biodiversity conservation in South Patagonia
Autor/es:
MARTÍNEZ PASTUR, G; LENCINAS, MV; CELLINI, JM
Lugar:
Seul
Reunión:
Congreso; XXIII IUFRO World Congress; 2010
Institución organizadora:
IUFRO
Resumen:
Natural native forests of Nothofagus pumilio are the main
source for sawmill industry, and are located in public and private lands.
Several silvicultural methods were proposed (e.g., shelterwood cuts) including
alternative methods to enhance biodiversity conservation (e.g., variable
retention). Theoretical models included a remnant overstory for periods up to
20 years until natural regeneration were established. The objective was to
evaluate the impacts of these silvicultural methods over forest, abiotic and
biotic variables (overstory, flowering and seeding, regeneration, understory
plants, birds, insects, mosses, fungi, climate and soil properties), and to
determine the effectiveness of the implementation of these methods, as well as
the biodiversity conservation values during the first years after the cuts.
Shelterwood cuts largely impacted over the studied variables than variable
retention, which conserve most of the natural processes in the aggregated
retention. However, both methods were not correctly implemented. Large
quantities of timber material were abandoned in the forest. Wind-blow of
remnant trees increased over time due to stem damage during the harvesting, but
regeneration was abundant for stands recovery. New harvesting strategies must
be implemented to assure the stability of the remnant overstory and to sustain
both, economically and ecologically the implementation of these regeneration
methods.