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| 2. |  | LEMOS, E. C. M.; VASCONCELOS, S. S.; BARROS, J. M.; SILVA, A. K. L. Respiração do solo em sistemas de produção agropecuária no Nordeste Paraense. In: SEMINÁRIO GESTABACIAS, 1., 2010, Belém, PA. Resultados de pesquisas em mesobacias do Nordeste paraense e sua aplicação no desenvolvimento rural. Belém, PA: Embrapa Amazônia Oriental: Projeto Gestabacias, 2010. 1 CD-ROM.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 4. | | LEMOS, E. C. M.; VASCONCELOS, S. S.; BARROS, J. M.; SILVA, A. K. L.; CARVALHO, C. J. R. de. Variação sazonal da respiração do solo em diferentes sistemas de produção agropecuária na Amazônia Oriental. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa, MG: SBCS, 2010. FERTBIO 2010.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 5. | | LEMOS, E. C. M.; VASCONCELOS, S. S.; SANTIAGO, M. R.; OLIVEIRA JUNIOR, M. C. M. de; SOUZA, C. M. de A. The responses of soil, litter and root carbon stocks to the conversion of forest regrowth to crop and tree production systems used by smallholder farmers in eastern Amazonia. Soil Use and Management, v. 32, n. 4, p. 504-514, Dec. 2016.| Biblioteca(s): Embrapa Amazônia Oriental. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
24/04/2017 |
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Data da última atualização: |
22/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
LEMOS, E. C. M.; VASCONCELOS, S. S.; SANTIAGO, M. R.; OLIVEIRA JUNIOR, M. C. M. de; SOUZA, C. M. de A. |
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Afiliação: |
E. C. M. LEMOS, UFPA; STEEL SILVA VASCONCELOS, CPATU; W. R. SANTIAGO, UFRA; M. C. M. DE OLIVEIRA JUNIOR, COLABORADOR CPATU; CLEO MARCELO DE ARAUJO SOUZA, CPATU. |
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Título: |
The responses of soil, litter and root carbon stocks to the conversion of forest regrowth to crop and tree production systems used by smallholder farmers in eastern Amazonia. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Soil Use and Management, v. 32, n. 4, p. 504-514, Dec. 2016. |
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DOI: |
10.1111/sum.12308 |
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Idioma: |
Inglês |
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Conteúdo: |
The impact of substituting forests for smallholder agricultural production systems on soil carbon (C) stocks is not well understood in Brazilian Amazonia. Most surveys of soil C stocks are restricted to the top 30 cm of soil and do not include measurements of litter and root stocks. Here, we quantify the stocks of C in soil (0?100 cm depth), aboveground litter and coarse roots of traditional (slash-and-burn) and alternative (Schizolobium amazonicum-planted forest and silvopastoral system) smallholder agricultural systems, which were compared with a reference area (forest regrowth) in the eastern Amazonia. The soil C stocks in the 0?100 cm layer were larger in the forest regrowth treatment (156.8 ± 15.5 Mg/ha) than in the other treatments (S. amazonicum = 85.3 ± 6.5, silvopastoral = 108.0 ± 4.4 Mg/ha) but did not differ from the soil C stock in the slash-and-burn treatment (127.2 ± 6.1 Mg/ha). The soil C stocks at the 0?30 cm layer, which represented 33?50% of the total C of the 0?100 cm layer, did not differ among the treatments. The litter C stocks were ranked in the following order: silvopastoral > forest regrowth > S. amazonicum > slash-and-burn. The forest regrowth treatment had a greater coarse root C stock (0.84 ± 0.10 Mg/ha) than the other treatments (silvopastoral = 0.28 ± 0.03, S. amazonicum = 0.18 ± 0.03, slash-and-burn = 0.27 ± 0.04 Mg/ha). Soil, litter and root C stocks were negatively impacted by the conversion of forest regrowth to cultivation systems. |
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Palavras-Chave: |
Corte e queima. |
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Thesagro: |
Carbono; Reflorestamento; Solo. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02306naa a2200241 a 4500
001 2068874
005 2021-12-22
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1111/sum.12308$2DOI
100 1 $aLEMOS, E. C. M.
245 $aThe responses of soil, litter and root carbon stocks to the conversion of forest regrowth to crop and tree production systems used by smallholder farmers in eastern Amazonia.$h[electronic resource]
260 $c2016
520 $aThe impact of substituting forests for smallholder agricultural production systems on soil carbon (C) stocks is not well understood in Brazilian Amazonia. Most surveys of soil C stocks are restricted to the top 30 cm of soil and do not include measurements of litter and root stocks. Here, we quantify the stocks of C in soil (0?100 cm depth), aboveground litter and coarse roots of traditional (slash-and-burn) and alternative (Schizolobium amazonicum-planted forest and silvopastoral system) smallholder agricultural systems, which were compared with a reference area (forest regrowth) in the eastern Amazonia. The soil C stocks in the 0?100 cm layer were larger in the forest regrowth treatment (156.8 ± 15.5 Mg/ha) than in the other treatments (S. amazonicum = 85.3 ± 6.5, silvopastoral = 108.0 ± 4.4 Mg/ha) but did not differ from the soil C stock in the slash-and-burn treatment (127.2 ± 6.1 Mg/ha). The soil C stocks at the 0?30 cm layer, which represented 33?50% of the total C of the 0?100 cm layer, did not differ among the treatments. The litter C stocks were ranked in the following order: silvopastoral > forest regrowth > S. amazonicum > slash-and-burn. The forest regrowth treatment had a greater coarse root C stock (0.84 ± 0.10 Mg/ha) than the other treatments (silvopastoral = 0.28 ± 0.03, S. amazonicum = 0.18 ± 0.03, slash-and-burn = 0.27 ± 0.04 Mg/ha). Soil, litter and root C stocks were negatively impacted by the conversion of forest regrowth to cultivation systems.
650 $aAmazonia
650 $aCarbono
650 $aReflorestamento
650 $aSolo
653 $aCorte e queima
700 1 $aVASCONCELOS, S. S.
700 1 $aSANTIAGO, M. R.
700 1 $aOLIVEIRA JUNIOR, M. C. M. de
700 1 $aSOUZA, C. M. de A.
773 $tSoil Use and Management$gv. 32, n. 4, p. 504-514, Dec. 2016.
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