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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
12/08/2019 |
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Data da última atualização: |
08/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIBEIRO, J. C. T.; NUNES-FREITAS, A. F.; FIDALGO, E. C. C.; UZEDA, M. C. |
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Afiliação: |
JULIANA CRISTINA TENIUS RIBEIRO, UFRRJ; ANDRÉ FELIPPE NUNES-FREITAS, UFRRJ; ELAINE CRISTINA CARDOSO FIDALGO, CNPS; MARIELLA CAMARDELLI UZEDA, CNPAB. |
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Título: |
Forest fragmentation and impacts of intensive agriculture: responses from different tree functional groups. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
PLoS ONE, v. 14, n. 8, article e0212725, 2019. |
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DOI: |
10.1371/journal.pone.0212725 |
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Idioma: |
Inglês |
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Conteúdo: |
Agricultural landscapes are seen as areas of extreme importance for studying and developing strategies which integrate biodiversity conservation and ecosystem services with food production. The main strategies for intensifying agriculture are based on conventional agricultural practices of frequently using inputs for fertilization and correcting soil pH. Some studies show that these practices generate impacts on nearby forest fragments through soil contamination and increasing nutrient content. The objective of this study was to identify the impacts on the functional groups of sciophilous (late successional/shade-tolerant species) and heliophilous (pioneer/sun-loving) species of a tree community of 14 forest fragments near pasture areas and agricultural areas under conventional practices, raising the hypothesis that higher-fertility forest fragments adjacent to intensive agriculture modify the floristic composition of the tree community. Consequently, this study is based on the following questions: i) Do forest fragments within intensive farming environments present differences in floristic composition of species?; ii) Does the soil fertility influence the tree species composition?; iii) Which variables influence species abundance and richness in the forest fragments with different types of use around their environment? The floristic composition of fragments close to agricultural areas are more similar to each other than the composition of fragments close to pasture areas. Furthermore, the General Linear Model (GLM) results show a clear influence of the intensive farming environment on the richness and abundance of the two functional groups in the forest fragments, directly benefiting the abundance of heliophilous species, which are also benefited by the greater declivity and smaller fragment area, while the abundance of sciophytes is negatively correlated with these last two variables. The increase of calcium content is beneficial for the richness of heliophilous species, while the increase in phosphorus content influences a reduction in the richness of sciophyte species, which also strongly respond to the isolation between fragments. The results indicate a dominance trend of pioneer species in fragments with nutritionally enriched soils, providing evidence that the intense adoption of inputs in cultivated areas causes concrete impacts on the diversity of the tree community. MenosAgricultural landscapes are seen as areas of extreme importance for studying and developing strategies which integrate biodiversity conservation and ecosystem services with food production. The main strategies for intensifying agriculture are based on conventional agricultural practices of frequently using inputs for fertilization and correcting soil pH. Some studies show that these practices generate impacts on nearby forest fragments through soil contamination and increasing nutrient content. The objective of this study was to identify the impacts on the functional groups of sciophilous (late successional/shade-tolerant species) and heliophilous (pioneer/sun-loving) species of a tree community of 14 forest fragments near pasture areas and agricultural areas under conventional practices, raising the hypothesis that higher-fertility forest fragments adjacent to intensive agriculture modify the floristic composition of the tree community. Consequently, this study is based on the following questions: i) Do forest fragments within intensive farming environments present differences in floristic composition of species?; ii) Does the soil fertility influence the tree species composition?; iii) Which variables influence species abundance and richness in the forest fragments with different types of use around their environment? The floristic composition of fragments close to agricultural areas are more similar to each other than the composition of fragments close to pasture areas. F... Mostrar Tudo |
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Thesagro: |
Agricultura; Fertilidade do Solo; Floresta. |
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Thesaurus Nal: |
Agriculture; Forests; Landscapes; Soil fertility. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/200545/1/Forest-fragmentation-and-impacts-of-intensive-agriculture-2019.pdf
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Marc: |
LEADER 03171naa a2200253 a 4500
001 2111243
005 2019-11-08
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1371/journal.pone.0212725$2DOI
100 1 $aRIBEIRO, J. C. T.
245 $aForest fragmentation and impacts of intensive agriculture$bresponses from different tree functional groups.$h[electronic resource]
260 $c2019
520 $aAgricultural landscapes are seen as areas of extreme importance for studying and developing strategies which integrate biodiversity conservation and ecosystem services with food production. The main strategies for intensifying agriculture are based on conventional agricultural practices of frequently using inputs for fertilization and correcting soil pH. Some studies show that these practices generate impacts on nearby forest fragments through soil contamination and increasing nutrient content. The objective of this study was to identify the impacts on the functional groups of sciophilous (late successional/shade-tolerant species) and heliophilous (pioneer/sun-loving) species of a tree community of 14 forest fragments near pasture areas and agricultural areas under conventional practices, raising the hypothesis that higher-fertility forest fragments adjacent to intensive agriculture modify the floristic composition of the tree community. Consequently, this study is based on the following questions: i) Do forest fragments within intensive farming environments present differences in floristic composition of species?; ii) Does the soil fertility influence the tree species composition?; iii) Which variables influence species abundance and richness in the forest fragments with different types of use around their environment? The floristic composition of fragments close to agricultural areas are more similar to each other than the composition of fragments close to pasture areas. Furthermore, the General Linear Model (GLM) results show a clear influence of the intensive farming environment on the richness and abundance of the two functional groups in the forest fragments, directly benefiting the abundance of heliophilous species, which are also benefited by the greater declivity and smaller fragment area, while the abundance of sciophytes is negatively correlated with these last two variables. The increase of calcium content is beneficial for the richness of heliophilous species, while the increase in phosphorus content influences a reduction in the richness of sciophyte species, which also strongly respond to the isolation between fragments. The results indicate a dominance trend of pioneer species in fragments with nutritionally enriched soils, providing evidence that the intense adoption of inputs in cultivated areas causes concrete impacts on the diversity of the tree community.
650 $aAgriculture
650 $aForests
650 $aLandscapes
650 $aSoil fertility
650 $aAgricultura
650 $aFertilidade do Solo
650 $aFloresta
700 1 $aNUNES-FREITAS, A. F.
700 1 $aFIDALGO, E. C. C.
700 1 $aUZEDA, M. C.
773 $tPLoS ONE$gv. 14, n. 8, article e0212725, 2019.
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Registro original: |
Embrapa Solos (CNPS) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
13/10/2016 |
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Data da última atualização: |
13/12/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SOUZA, G. P. de; FIGUEIREDO, C. C. de; SOUSA, D. M. G. de. |
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Afiliação: |
GÉSSICA PEREIRA DE SOUZA, UNB; CÍCERO CÉLIO DE FIGUEIREDO, UNB; DJALMA MARTINHAO GOMES DE SOUSA, CPAC. |
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Título: |
Relationships between labile soil organic carbon fractions under different soil management systems. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 73, n. 6, p. 535-542, Nov./Dec. 2016. |
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ISSN: |
0103-9016 |
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DOI: |
http://dx.doi.org/10.1590/0103-9016-2015-0047 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: The study of labile carbon fractions (LCF) provides an understanding of the behavior of soil organic matter (SOM) under different soil management systems and cover crops. The aim of this study was to assess the effect of different soil management systems with respect to tillage, cover crop and phosphate fertilization on the amount of the LCF of SOM. Treatments consisted of conventional tillage (CT) and no-tillage (NT) with millet as the cover crop and a no-tillage system with velvet bean at two phosphorus dosages. Soil samples were collected and analyzed for organic carbon (OC), C oxidizable by KMnO4 (C-KMnO4), particulate OC (POC), microbial biomass carbon and light SOM in the 0.0-0.05, 0.05-0.10 and 0.10-0.20 m soil layers. The Carbon Management Index (CMI) was calculated to evaluate the impacts of soil management treatments on the quality of the SOM. The different LCFs are sensitive to different soil management systems, and there are significant correlations between them. C-KMnO4 is considered the best indicator of OC carbon lability. In the soil surface layers, the CT reduced the carbon content in all of the labile fractions of the SOM. The use of phosphorus led to the accumulation of OC and carbon in the different soil fractions regardless of the tillage system or cover crop. The application of phosphate fertilizer improved the ability of the NTsystem to promote soil quality, as assessed by the CMI. |
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Palavras-Chave: |
Labile organic matter; Matéria orgânica instável; Phosphorus fertilization. |
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Thesagro: |
Fertilidade do solo; Fósforo; Materia orgânica; Solo. |
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Thesaurus NAL: |
soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/148675/1/scientia-agricola-v73-n6-p535.pdf
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Marc: |
LEADER 02274naa a2200265 a 4500
001 2054545
005 2016-12-13
008 2016 bl uuuu u00u1 u #d
022 $a0103-9016
024 7 $ahttp://dx.doi.org/10.1590/0103-9016-2015-0047$2DOI
100 1 $aSOUZA, G. P. de
245 $aRelationships between labile soil organic carbon fractions under different soil management systems.
260 $c2016
520 $aABSTRACT: The study of labile carbon fractions (LCF) provides an understanding of the behavior of soil organic matter (SOM) under different soil management systems and cover crops. The aim of this study was to assess the effect of different soil management systems with respect to tillage, cover crop and phosphate fertilization on the amount of the LCF of SOM. Treatments consisted of conventional tillage (CT) and no-tillage (NT) with millet as the cover crop and a no-tillage system with velvet bean at two phosphorus dosages. Soil samples were collected and analyzed for organic carbon (OC), C oxidizable by KMnO4 (C-KMnO4), particulate OC (POC), microbial biomass carbon and light SOM in the 0.0-0.05, 0.05-0.10 and 0.10-0.20 m soil layers. The Carbon Management Index (CMI) was calculated to evaluate the impacts of soil management treatments on the quality of the SOM. The different LCFs are sensitive to different soil management systems, and there are significant correlations between them. C-KMnO4 is considered the best indicator of OC carbon lability. In the soil surface layers, the CT reduced the carbon content in all of the labile fractions of the SOM. The use of phosphorus led to the accumulation of OC and carbon in the different soil fractions regardless of the tillage system or cover crop. The application of phosphate fertilizer improved the ability of the NTsystem to promote soil quality, as assessed by the CMI.
650 $asoil organic matter
650 $aFertilidade do solo
650 $aFósforo
650 $aMateria orgânica
650 $aSolo
653 $aLabile organic matter
653 $aMatéria orgânica instável
653 $aPhosphorus fertilization
700 1 $aFIGUEIREDO, C. C. de
700 1 $aSOUSA, D. M. G. de
773 $tScientia Agricola, Piracicaba$gv. 73, n. 6, p. 535-542, Nov./Dec. 2016.
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