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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados; Embrapa Florestas. |
Data corrente: |
22/12/2017 |
Data da última atualização: |
19/04/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ZAGATTO, M. R. G.; NIVA, C. C.; THOMAZINI, M. J.; BARETTA, D.; SANTOS, A.; NADOLNY, H.; CARDOSO, G. B. X.; BROWN, G. G. |
Afiliação: |
MAURÍCIO RUMENOS GUIDETTI ZAGATTO, USP; CINTIA CARLA NIVA, CPAC; MARCILIO JOSE THOMAZINI, CNPF; DILMAR BARETTA, UESC; ALESSANDRA SANTOS, UFPR; HERLON NADOLNY, UFPR; GUILHERME BORGES XARÃO CARDOSO, UFPR; GEORGE GARDNER BROWN, CNPF. |
Título: |
Soil invertebrates in different land use systems: how integrated production systems and seasonality affect soil mesofauna communities. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Journal of Agricultural Science and Technology B, v. 7, p. 158-169, 2017. |
DOI: |
10.17265/2161-6264/2017.03.003 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The soil mesofauna plays a role in organic matter comminution and decomposition, and can be used as bioindicators, since they are sensitive to soil management, vegetation and climate changes. Hence, this study aimed to evaluate mesofauna density and diversity in different land use systems to identify faunal relationships with soil properties, management and seasonality. The study area included five land use systems in Ponta Grossa municipality, Paraná State: integrated crop-livestock (ICL), integrated crop-livestock-forestry (ICLF), grazed native pasture (NP), Eucalyptus dunnii plantation (EU) and no-tillage (NT) cropping systems. In each system, eight soil samples for mesofauna were collected with Berlese funnels of 8 cm diameter along a transect in three replicate plots of 50 m × 100 m. For physical and chemical analysis, soil was sampled at five points per plot in two seasons: winter 2012 and autumn 2013. Data were statistically analyzed using ANOVA and Duncan?s test (P < 0.05), nonparametric statistics (when necessary) and redundancy analysis (RDA). Diversity was calculated based on the group richness and Simpson index. The main mesofauna groups found were: Acarina, Collembola and Hymenoptera. Diplopoda, Enchytraeidae, Isopoda, Collembola, Hemiptera, Hymenoptera and Coleoptera larvae were more abundant in autumn than winter. Soil moisture was the main factor responsible for higher mesofauna abundance in autumn. Integrated production systems, especially ICLF had similar invertebrate community abundance and composition with EU, while NT favored Oribatid mites, although the use of insecticides, herbicides and fungicides reduced total mesofauna density. Most correlations between mesofauna and physical-chemical attributes in the winter were not observed in the autumn and vice versa, revealing that there are more factors involved in regulating soil mesofauna distribution. MenosAbstract: The soil mesofauna plays a role in organic matter comminution and decomposition, and can be used as bioindicators, since they are sensitive to soil management, vegetation and climate changes. Hence, this study aimed to evaluate mesofauna density and diversity in different land use systems to identify faunal relationships with soil properties, management and seasonality. The study area included five land use systems in Ponta Grossa municipality, Paraná State: integrated crop-livestock (ICL), integrated crop-livestock-forestry (ICLF), grazed native pasture (NP), Eucalyptus dunnii plantation (EU) and no-tillage (NT) cropping systems. In each system, eight soil samples for mesofauna were collected with Berlese funnels of 8 cm diameter along a transect in three replicate plots of 50 m × 100 m. For physical and chemical analysis, soil was sampled at five points per plot in two seasons: winter 2012 and autumn 2013. Data were statistically analyzed using ANOVA and Duncan?s test (P < 0.05), nonparametric statistics (when necessary) and redundancy analysis (RDA). Diversity was calculated based on the group richness and Simpson index. The main mesofauna groups found were: Acarina, Collembola and Hymenoptera. Diplopoda, Enchytraeidae, Isopoda, Collembola, Hemiptera, Hymenoptera and Coleoptera larvae were more abundant in autumn than winter. Soil moisture was the main factor responsible for higher mesofauna abundance in autumn. Integrated production systems, especially ICLF had... Mostrar Tudo |
Palavras-Chave: |
Bioindicador. |
Thesagro: |
Animal Invertebrado; Biodiversidade; Manejo do Solo; Umidade do Solo; Variação Sazonal. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/175721/1/2017-G.Brown-JAST-Soil-invertebrates.pdf
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Marc: |
LEADER 02827naa a2200289 a 4500 001 2083495 005 2018-04-19 008 2017 bl uuuu u00u1 u #d 024 7 $a10.17265/2161-6264/2017.03.003$2DOI 100 1 $aZAGATTO, M. R. G. 245 $aSoil invertebrates in different land use systems$bhow integrated production systems and seasonality affect soil mesofauna communities.$h[electronic resource] 260 $c2017 520 $aAbstract: The soil mesofauna plays a role in organic matter comminution and decomposition, and can be used as bioindicators, since they are sensitive to soil management, vegetation and climate changes. Hence, this study aimed to evaluate mesofauna density and diversity in different land use systems to identify faunal relationships with soil properties, management and seasonality. The study area included five land use systems in Ponta Grossa municipality, Paraná State: integrated crop-livestock (ICL), integrated crop-livestock-forestry (ICLF), grazed native pasture (NP), Eucalyptus dunnii plantation (EU) and no-tillage (NT) cropping systems. In each system, eight soil samples for mesofauna were collected with Berlese funnels of 8 cm diameter along a transect in three replicate plots of 50 m × 100 m. For physical and chemical analysis, soil was sampled at five points per plot in two seasons: winter 2012 and autumn 2013. Data were statistically analyzed using ANOVA and Duncan?s test (P < 0.05), nonparametric statistics (when necessary) and redundancy analysis (RDA). Diversity was calculated based on the group richness and Simpson index. The main mesofauna groups found were: Acarina, Collembola and Hymenoptera. Diplopoda, Enchytraeidae, Isopoda, Collembola, Hemiptera, Hymenoptera and Coleoptera larvae were more abundant in autumn than winter. Soil moisture was the main factor responsible for higher mesofauna abundance in autumn. Integrated production systems, especially ICLF had similar invertebrate community abundance and composition with EU, while NT favored Oribatid mites, although the use of insecticides, herbicides and fungicides reduced total mesofauna density. Most correlations between mesofauna and physical-chemical attributes in the winter were not observed in the autumn and vice versa, revealing that there are more factors involved in regulating soil mesofauna distribution. 650 $aAnimal Invertebrado 650 $aBiodiversidade 650 $aManejo do Solo 650 $aUmidade do Solo 650 $aVariação Sazonal 653 $aBioindicador 700 1 $aNIVA, C. C. 700 1 $aTHOMAZINI, M. J. 700 1 $aBARETTA, D. 700 1 $aSANTOS, A. 700 1 $aNADOLNY, H. 700 1 $aCARDOSO, G. B. X. 700 1 $aBROWN, G. G. 773 $tJournal of Agricultural Science and Technology B$gv. 7, p. 158-169, 2017.
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Embrapa Cerrados (CPAC) |
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Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
21/09/2018 |
Data da última atualização: |
02/05/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
BRITO, J. L. S.; ARANTES, A. E.; FERREIRA, L. G.; SANO, E. E. |
Afiliação: |
JORGE LUÍS SILVA BRITO, UNIVERSIDADE FEDERAL DE UBERLÂNDIA; ARIELLE ELIAS ARANTES, UNIVERSIDADE FEDERAL DE GOIÁS; LAERTE GUIMARÃES FERREIRA, UNIVERSIDADE FEDERAL DE GOIÁS; EDSON EYJI SANO, CPAC. |
Título: |
MODIS estimates of pastures productivity in the Cerrado based on ground and Landsat-8 data extrapolations. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Journal of Applied Remote Sensing, v. 12, n. 2, 2018. |
Idioma: |
Inglês |
Conteúdo: |
With ∼175 Mha (38% of which is in the Cerrado biome), pastures are the main land use forms in Brazil. Aiming at improving pasture utilization, in this study we combined field and satellite data to assess the biophysical characteristics and productivity patterns of the Cerrado pasturelands. From October 2013 to September 2014, field data of total and green biomass and percent green cover (%GC) were collected in two study areas located in the municipality of Uberlândia, Minas Gerais State. These data were extrapolated to the entire Cerrado biome through regression equations involving normalized vegetation index values derived from Landsat-8 Operational Land Imager (OLI) and Terra MODIS sensors for the year 2014. Total green biomass in the growing season was used to estimate potential livestock intensifi- cation in terms of animal unit (AU) per hectare. Average green biomass values ranged from 1482 kg ha−1 in August (dry season peak) to 2878 kg ha−1 in March (end of the rainy season), whereas %GC ranged from 49% in August to 66% in January and April 2014. Considering the estimated availability of green forage, cattle stocking rate in the Cerrado could increase, on aver- age, from 1.11 to 2.56 AU ha−1. |
Palavras-Chave: |
Imagem biofísica; Índice vegetativo; Monitoramento de pastagem. |
Thesagro: |
Biomassa; Cerrado; Pastagem; Sensoriamento Remoto. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01924naa a2200241 a 4500 001 2096120 005 2024-05-02 008 2018 bl uuuu u00u1 u #d 100 1 $aBRITO, J. L. S. 245 $aMODIS estimates of pastures productivity in the Cerrado based on ground and Landsat-8 data extrapolations. 260 $c2018 520 $aWith ∼175 Mha (38% of which is in the Cerrado biome), pastures are the main land use forms in Brazil. Aiming at improving pasture utilization, in this study we combined field and satellite data to assess the biophysical characteristics and productivity patterns of the Cerrado pasturelands. From October 2013 to September 2014, field data of total and green biomass and percent green cover (%GC) were collected in two study areas located in the municipality of Uberlândia, Minas Gerais State. These data were extrapolated to the entire Cerrado biome through regression equations involving normalized vegetation index values derived from Landsat-8 Operational Land Imager (OLI) and Terra MODIS sensors for the year 2014. Total green biomass in the growing season was used to estimate potential livestock intensifi- cation in terms of animal unit (AU) per hectare. Average green biomass values ranged from 1482 kg ha−1 in August (dry season peak) to 2878 kg ha−1 in March (end of the rainy season), whereas %GC ranged from 49% in August to 66% in January and April 2014. Considering the estimated availability of green forage, cattle stocking rate in the Cerrado could increase, on aver- age, from 1.11 to 2.56 AU ha−1. 650 $aBiomassa 650 $aCerrado 650 $aPastagem 650 $aSensoriamento Remoto 653 $aImagem biofísica 653 $aÍndice vegetativo 653 $aMonitoramento de pastagem 700 1 $aARANTES, A. E. 700 1 $aFERREIRA, L. G. 700 1 $aSANO, E. E. 773 $tJournal of Applied Remote Sensing$gv. 12, n. 2, 2018.
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