Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments
ABSTRACT This work had the objective to evaluate the activity and microbial biomass of the soil as an indicator of edge effect in Semi-Deciduous Seasonal Forest fragments. Three fragments of different sizes (small, medium and large) located in the Southwest region of Bahia state were evaluated, in w...
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Universidade Federal Rural do Rio de Janeiro
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doaj-35a39c4f780041a9bbaf508dbb29dabf2020-11-25T02:00:27ZengUniversidade Federal Rural do Rio de JaneiroFloresta e Ambiente2179-808726410.1590/2179-8087.103717S2179-80872019000400136Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest FragmentsMayana Oliveira Duarte SantosPatrícia Anjos Bittencourt Barreto-GarciaEmanuela Forestieri Gama-RodriguesABSTRACT This work had the objective to evaluate the activity and microbial biomass of the soil as an indicator of edge effect in Semi-Deciduous Seasonal Forest fragments. Three fragments of different sizes (small, medium and large) located in the Southwest region of Bahia state were evaluated, in which three sampling ranges were defined in each, and soil samples were collected. The carbon and nitrogen contents of the microbial biomass were determined by the fumigation-extraction method and soil respiration. The microbial biomass carbon (MBC), metabolic carbon quotient (qCO2) and the microbial C:N and MBC:C ratios were discriminating indicators of the edge effect on the soil quality of the studied forest fragments. The integrated analysis of soil microbiological attributes is adequate to evaluate the edge effect in forest fragments. The size of the fragments and their isolation influence the MBC contents, showing greater vulnerability of the smaller fragments in relation to the actions of the external environment.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000400136&lng=en&tlng=enfragmentationmicrobial activityforest soils |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mayana Oliveira Duarte Santos Patrícia Anjos Bittencourt Barreto-Garcia Emanuela Forestieri Gama-Rodrigues |
spellingShingle |
Mayana Oliveira Duarte Santos Patrícia Anjos Bittencourt Barreto-Garcia Emanuela Forestieri Gama-Rodrigues Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments Floresta e Ambiente fragmentation microbial activity forest soils |
author_facet |
Mayana Oliveira Duarte Santos Patrícia Anjos Bittencourt Barreto-Garcia Emanuela Forestieri Gama-Rodrigues |
author_sort |
Mayana Oliveira Duarte Santos |
title |
Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments |
title_short |
Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments |
title_full |
Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments |
title_fullStr |
Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments |
title_full_unstemmed |
Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments |
title_sort |
soil microbial biomass as an edge effect indicator in semi-deciduous seasonal forest fragments |
publisher |
Universidade Federal Rural do Rio de Janeiro |
series |
Floresta e Ambiente |
issn |
2179-8087 |
description |
ABSTRACT This work had the objective to evaluate the activity and microbial biomass of the soil as an indicator of edge effect in Semi-Deciduous Seasonal Forest fragments. Three fragments of different sizes (small, medium and large) located in the Southwest region of Bahia state were evaluated, in which three sampling ranges were defined in each, and soil samples were collected. The carbon and nitrogen contents of the microbial biomass were determined by the fumigation-extraction method and soil respiration. The microbial biomass carbon (MBC), metabolic carbon quotient (qCO2) and the microbial C:N and MBC:C ratios were discriminating indicators of the edge effect on the soil quality of the studied forest fragments. The integrated analysis of soil microbiological attributes is adequate to evaluate the edge effect in forest fragments. The size of the fragments and their isolation influence the MBC contents, showing greater vulnerability of the smaller fragments in relation to the actions of the external environment. |
topic |
fragmentation microbial activity forest soils |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000400136&lng=en&tlng=en |
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