Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests
Understory plants could can act as indicators of temperate forest sustainability, health and conservation status due to their importance in ecosystem function. Harvesting impacts on understory plant diversity depends on their intensity. Variable retention has been proposed to mitigate the harmful ef...
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ftconicet:oai:ri.conicet.gov.ar:11336/126783 2023-10-09T21:46:33+02:00 Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests Lencinas, María Vanessa Martínez Pastur, Guillermo José Gallo, Emilce Andrea Cellini, Juan Manuel application/pdf http://hdl.handle.net/11336/126783 eng eng Elsevier Science info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378112711003835 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2011.06.021 http://hdl.handle.net/11336/126783 Lencinas, María Vanessa; Martínez Pastur, Guillermo José; Gallo, Emilce Andrea; Cellini, Juan Manuel; Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests; Elsevier Science; Forest Ecology and Management; 262; 7; 10-2011; 1236-1250 0378-1127 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ AGGREGATED RETENTION BIODIVERSITY CONSERVATION DISPERSED RETENTION PLANT DIVERSITY https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.foreco.2011.06.021 2023-09-24T19:01:34Z Understory plants could can act as indicators of temperate forest sustainability, health and conservation status due to their importance in ecosystem function. Harvesting impacts on understory plant diversity depends on their intensity. Variable retention has been proposed to mitigate the harmful effects of timber harvesting, but its effectiveness remains unknown in southern Patagonian Nothofagus pumilio forests. The objectives of this study were to: (i) define a baseline of understory plant diversity in old-growth forests along a site quality gradient and under canopy gaps; (ii) evaluate stands with three different variable retention treatments compared to old-growth forests; and (iii) assess temporal changes during 4years after harvesting (YAH). A 61ha N. pumilio forest was selected. Understory plant (Dicotyledonae, Monocotyledonae and Pteridophyta) richness, cover (including woody debris and bare forest floor) and aboveground dry biomass were characterized in summer for 5years. Before harvesting, baseline samples were conducted along a site quality gradient and outside/inside canopy gaps. Analyzed treatments include a control of old-growth forest (OGF) and three different harvesting treatments with variable retention: (i) dispersed retention (DR) of 30m2ha-1 (20-30% retention); (ii) aggregated retention (AR) with one aggregate per hectare and clear-cuts (28% retention); and (iii) combined dispersed and aggregated retention (DAR) with one aggregate per hectare and dispersed retention of 10-15m2ha-1 (40-50% retention). Data analyses included parametric and permutational ANOVAs, multivariate classification and ordinations.Before harvesting, 31 plant species were found, where richness, cover and biomass were directly related to site quality. The presence of canopy gaps did not have a significant impact on the measured variables. After harvesting, 20 new species appeared from adjacent associated environments (two from N. antarctica forests and 18 from grasslands and peatlands). At the stand level, understory ... Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Forest Ecology and Management 262 7 1236 1250 |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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ftconicet |
language |
English |
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AGGREGATED RETENTION BIODIVERSITY CONSERVATION DISPERSED RETENTION PLANT DIVERSITY https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
spellingShingle |
AGGREGATED RETENTION BIODIVERSITY CONSERVATION DISPERSED RETENTION PLANT DIVERSITY https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 Lencinas, María Vanessa Martínez Pastur, Guillermo José Gallo, Emilce Andrea Cellini, Juan Manuel Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests |
topic_facet |
AGGREGATED RETENTION BIODIVERSITY CONSERVATION DISPERSED RETENTION PLANT DIVERSITY https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
description |
Understory plants could can act as indicators of temperate forest sustainability, health and conservation status due to their importance in ecosystem function. Harvesting impacts on understory plant diversity depends on their intensity. Variable retention has been proposed to mitigate the harmful effects of timber harvesting, but its effectiveness remains unknown in southern Patagonian Nothofagus pumilio forests. The objectives of this study were to: (i) define a baseline of understory plant diversity in old-growth forests along a site quality gradient and under canopy gaps; (ii) evaluate stands with three different variable retention treatments compared to old-growth forests; and (iii) assess temporal changes during 4years after harvesting (YAH). A 61ha N. pumilio forest was selected. Understory plant (Dicotyledonae, Monocotyledonae and Pteridophyta) richness, cover (including woody debris and bare forest floor) and aboveground dry biomass were characterized in summer for 5years. Before harvesting, baseline samples were conducted along a site quality gradient and outside/inside canopy gaps. Analyzed treatments include a control of old-growth forest (OGF) and three different harvesting treatments with variable retention: (i) dispersed retention (DR) of 30m2ha-1 (20-30% retention); (ii) aggregated retention (AR) with one aggregate per hectare and clear-cuts (28% retention); and (iii) combined dispersed and aggregated retention (DAR) with one aggregate per hectare and dispersed retention of 10-15m2ha-1 (40-50% retention). Data analyses included parametric and permutational ANOVAs, multivariate classification and ordinations.Before harvesting, 31 plant species were found, where richness, cover and biomass were directly related to site quality. The presence of canopy gaps did not have a significant impact on the measured variables. After harvesting, 20 new species appeared from adjacent associated environments (two from N. antarctica forests and 18 from grasslands and peatlands). At the stand level, understory ... |
format |
Article in Journal/Newspaper |
author |
Lencinas, María Vanessa Martínez Pastur, Guillermo José Gallo, Emilce Andrea Cellini, Juan Manuel |
author_facet |
Lencinas, María Vanessa Martínez Pastur, Guillermo José Gallo, Emilce Andrea Cellini, Juan Manuel |
author_sort |
Lencinas, María Vanessa |
title |
Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests |
title_short |
Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests |
title_full |
Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests |
title_fullStr |
Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests |
title_full_unstemmed |
Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests |
title_sort |
alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern patagonian forests |
publisher |
Elsevier Science |
url |
http://hdl.handle.net/11336/126783 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378112711003835 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2011.06.021 http://hdl.handle.net/11336/126783 Lencinas, María Vanessa; Martínez Pastur, Guillermo José; Gallo, Emilce Andrea; Cellini, Juan Manuel; Alternative silvicultural practices with variable retention to improve understory plant diversity conservation in southern Patagonian forests; Elsevier Science; Forest Ecology and Management; 262; 7; 10-2011; 1236-1250 0378-1127 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.foreco.2011.06.021 |
container_title |
Forest Ecology and Management |
container_volume |
262 |
container_issue |
7 |
container_start_page |
1236 |
op_container_end_page |
1250 |
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1779322260615593984 |