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dc.contributor.authorBentos, Tony Vizcarra-
dc.contributor.authorNascimento, Henrique Eduardo Mendonça-
dc.contributor.authorWilliamson, G. Bruce-
dc.date.accessioned2020-06-15T21:50:14Z-
dc.date.available2020-06-15T21:50:14Z-
dc.date.issued2013-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/17934-
dc.description.abstractDeforested lands in Amazonia are usually converted into pastures and maintained through annual prescribed burning which depletes the soil seed bank. Here, we assess the effect of topography and micro-site conditions on the seed bank and recruitment success of tree species in 20-year old secondary forests developing on abandoned pastures in Central Amazonia, Brazil. Seedling emergence, mortality, and growth were monitored in four 1. ×. 1-m sub-plots located systematically in the center of 21 10. ×. 10-m artificial canopy gaps, seven each on three different topographic positions - plateau, slope, and bottomland. The 84 seedling sub-plots were assigned to four different treatments generated by the combination of two litter treatments, litter intact and litter removed, and two soil treatments, soil turned and soil unturned. Sixteen soil samples were collected from the four corners of each sub-plot for analysis of the seed bank. There was no significant effect of topography on the number of seeds, although on the average, densities on the plateaus and the bottomlands were more than double that on the slopes. Seedling emergence increased 200% with litter removal and 50% with soil turning relative to respective controls. Seedling emergence was significantly higher in bottomlands than in slopes, and seedling growth was significantly higher in bottomlands and slopes than in plateaus, indicating that water availability may be the limiting factor for the recruitment success on the higher parts of relief. There were no effects of topography and litter removal on seedling mortality. Management tools that can accelerate succession on intensively used land offer options for fostering reforestation. Based on this study, manipulating litter and soil micro-environment provide viable methodological tools. © 2012 Elsevier B.V.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 287, Pags. 140-146pt_BR
dc.rightsRestrito*
dc.subjectAmazoniaen
dc.subjectArtificial Gapsen
dc.subjectCanopy Gapsen
dc.subjectManagement Toolen
dc.subjectMethodological Toolsen
dc.subjectPrescribed Burningen
dc.subjectSecondary Forestsen
dc.subjectSeed Banken
dc.subjectSeedling Emergenceen
dc.subjectSeedling Growthen
dc.subjectSeedling Mortalityen
dc.subjectSoil Disturbancesen
dc.subjectSoil Sampleen
dc.subjectSoil Seed Banken
dc.subjectSoil Treatmentsen
dc.subjectTopographic Positionsen
dc.subjectTree Seedlingsen
dc.subjectTree Speciesen
dc.subjectVismia Sppen
dc.subjectWater Availabilityen
dc.subjectAgricultureen
dc.subjectReforestationen
dc.subjectTopographyen
dc.subjectSoilsen
dc.subjectAbandoned Landen
dc.subjectCanopy Gapen
dc.subjectDicotyledonen
dc.subjectEnvironmental Conditionsen
dc.subjectEnvironmental Disturbanceen
dc.subjectForest Managementen
dc.subjectGrowth Rateen
dc.subjectLand Coveren
dc.subjectLitteren
dc.subjectMortalityen
dc.subjectPrescribed Burningen
dc.subjectRecruitment (population Dynamics)en
dc.subjectReforestationen
dc.subjectRemoval Experimenten
dc.subjectSecondary Foresten
dc.subjectSeed Banken
dc.subjectSeedling Emergenceen
dc.subjectSeedling Establishmenten
dc.subjectSuccessionen
dc.subjectTopographic Effecten
dc.subjectWater Availabilityen
dc.subjectAgricultureen
dc.subjectForest Litteren
dc.subjectMortalityen
dc.subjectSeedsen
dc.subjectSoilen
dc.subjectAmazoniaen
dc.subjectVismiaen
dc.titleTree seedling recruitment in Amazon secondary forest: Importance of topography and gap micro-site conditionsen
dc.typeArtigopt_BR
dc.identifier.doi10.1016/j.foreco.2012.09.016-
dc.publisher.journalForest Ecology and Managementpt_BR
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