Annual variation in canopy openness, air temperature and humidity inthe understory of three forested sites in southern Bahia State, Brazil

Aiming at contributing to the knowledge of physical factors affecting community structure in Atlantic Forest remnants of southern Bahia state, Brazil, we analyzed the annual variation in the understory microclimate of a hillside forest fragment in the ‘Reserva Particular do Patrimônio Natural Serra...

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Main Authors: Marayana Prado Pinheiro, Josafá Amaral de Oliveira Filho, Solange França, André Márcio Amorim, Marcelo Schramm Mielke
Format: Article
Language:Portuguese
Published: Universidade Federal de Santa Maria 2013-01-01
Series:Ciência Florestal
Online Access:http://www.redalyc.org/articulo.oa?id=53425660025
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author Marayana Prado Pinheiro
Josafá Amaral de Oliveira Filho
Solange França
André Márcio Amorim
Marcelo Schramm Mielke
author_facet Marayana Prado Pinheiro
Josafá Amaral de Oliveira Filho
Solange França
André Márcio Amorim
Marcelo Schramm Mielke
author_sort Marayana Prado Pinheiro
collection DOAJ
description Aiming at contributing to the knowledge of physical factors affecting community structure in Atlantic Forest remnants of southern Bahia state, Brazil, we analyzed the annual variation in the understory microclimate of a hillside forest fragment in the ‘Reserva Particular do Patrimônio Natural Serra do Teimoso’ (RST) and a rustic cacao agroforestry system (Cabruca), located nearby the RST. Canopy openness (CO), air temperature (Ta), air relative humidity (RH) and vapor pressure deficit (VPD) data were collected between April, 2005 and April, 2006 at the base (RSTB, 340 m) and the top (RSTT, 640 m) of the RST and at the Cabruca (CB, 250 m). Data of rainfall, Ta, RH and VPD were also collected in an open area (OA, 270 m). The highest rainfalls (> 100 mm) occurred in November, 2005 and April, 2006, whereas October, 2005 was the driest month (< 20 mm). CO ranged between 2.5 % in the CB (April, 2006) and 7.7 % in the RST (October, 2005). Low rainfall in October, 2005 affected VPDmax in all sites. Those effects were more pronounced in OA, followed by CB, RSTB and RSTT. During the period of measurements, the values of Ta, RH and VPD in CB were closer to the values measured in OA than to the values measured inside the forest.
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spelling doaj.art-1f8d4494d8ec482f8391855c304301842022-12-22T00:53:22ZporUniversidade Federal de Santa MariaCiência Florestal0103-99541980-50982013-01-01231107116Annual variation in canopy openness, air temperature and humidity inthe understory of three forested sites in southern Bahia State, BrazilMarayana Prado PinheiroJosafá Amaral de Oliveira FilhoSolange FrançaAndré Márcio AmorimMarcelo Schramm MielkeAiming at contributing to the knowledge of physical factors affecting community structure in Atlantic Forest remnants of southern Bahia state, Brazil, we analyzed the annual variation in the understory microclimate of a hillside forest fragment in the ‘Reserva Particular do Patrimônio Natural Serra do Teimoso’ (RST) and a rustic cacao agroforestry system (Cabruca), located nearby the RST. Canopy openness (CO), air temperature (Ta), air relative humidity (RH) and vapor pressure deficit (VPD) data were collected between April, 2005 and April, 2006 at the base (RSTB, 340 m) and the top (RSTT, 640 m) of the RST and at the Cabruca (CB, 250 m). Data of rainfall, Ta, RH and VPD were also collected in an open area (OA, 270 m). The highest rainfalls (> 100 mm) occurred in November, 2005 and April, 2006, whereas October, 2005 was the driest month (< 20 mm). CO ranged between 2.5 % in the CB (April, 2006) and 7.7 % in the RST (October, 2005). Low rainfall in October, 2005 affected VPDmax in all sites. Those effects were more pronounced in OA, followed by CB, RSTB and RSTT. During the period of measurements, the values of Ta, RH and VPD in CB were closer to the values measured in OA than to the values measured inside the forest.http://www.redalyc.org/articulo.oa?id=53425660025
spellingShingle Marayana Prado Pinheiro
Josafá Amaral de Oliveira Filho
Solange França
André Márcio Amorim
Marcelo Schramm Mielke
Annual variation in canopy openness, air temperature and humidity inthe understory of three forested sites in southern Bahia State, Brazil
Ciência Florestal
title Annual variation in canopy openness, air temperature and humidity inthe understory of three forested sites in southern Bahia State, Brazil
title_full Annual variation in canopy openness, air temperature and humidity inthe understory of three forested sites in southern Bahia State, Brazil
title_fullStr Annual variation in canopy openness, air temperature and humidity inthe understory of three forested sites in southern Bahia State, Brazil
title_full_unstemmed Annual variation in canopy openness, air temperature and humidity inthe understory of three forested sites in southern Bahia State, Brazil
title_short Annual variation in canopy openness, air temperature and humidity inthe understory of three forested sites in southern Bahia State, Brazil
title_sort annual variation in canopy openness air temperature and humidity inthe understory of three forested sites in southern bahia state brazil
url http://www.redalyc.org/articulo.oa?id=53425660025
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