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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Solos. |
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Data corrente: |
11/04/2022 |
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Data da última atualização: |
11/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CESÁRIO, F. V.; BALIEIRO, F. de C.; FREITAS, L. J. M. de. |
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Afiliação: |
FERNANDO VIEIRA CESÁRIO, UFRJ; FABIANO DE CARVALHO BALIEIRO, CNPS; LUCAS JOSE MAZZEI DE FREITAS, CPATU. |
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Título: |
Humipedon dynamics in lowland Amazonian forests: are there Amphi humus forms even in tropical rain forests? |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Geoderma, v. 418, 115849, Jul. 2022. |
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DOI: |
https://doi.org/10.1016/j.geoderma.2022.115849 |
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Idioma: |
Inglês |
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Conteúdo: |
Understanding humipedon dynamics is crucial to capture forest ecological processes. However, studies disentangling humipedon dynamics in tropical forests are scarce. The humipedon structure classification is important because it shows how forest ecosystems interact and react with (a)biotic factors. Here, we used the humus morpho-functional approach to investigate how soil texture and reduced impact-logging affect forest humipedon structure and dynamics in the eastern Amazon. We used a morpho-functional classification of humus forms as the foundation to visualize, classify, and code 133 soil profiles in two contrasting soil textures and different post-logging practices, to identify litter leaching, fragmentation, and humification processes coupled with soil aggregation and root dynamics. The classification of humus forms resulted in the identification of three humus systems: Mull, Moder and Amphi. Sandy and clayey textures differ statistically (X2 = 51.83; p < 0.001), with sandy texture predominating in Moder system, while clayey texture exhibits Amphi or Mull systems. Sandy textures presented a weak soil aggregation, but strong association with root (rhiOF) and humification (OH) horizons, leading to a clear transition between organic and mineral pools. In contrast, clayey textures show a strong carbon storage and soil aggregation. The humipedon horizons differ significantly (p = 0.009; stress = 0.1142 and R2 = 0.987) and their dynamics clearly evolve towards an opposite direction. The classification framework introduced here supports environmental management by promoting speed and viability in diagnosing forest ecosystem soils towards forest protection or use in the landscape, and specific climate mitigation goals both in local and regional planning. MenosUnderstanding humipedon dynamics is crucial to capture forest ecological processes. However, studies disentangling humipedon dynamics in tropical forests are scarce. The humipedon structure classification is important because it shows how forest ecosystems interact and react with (a)biotic factors. Here, we used the humus morpho-functional approach to investigate how soil texture and reduced impact-logging affect forest humipedon structure and dynamics in the eastern Amazon. We used a morpho-functional classification of humus forms as the foundation to visualize, classify, and code 133 soil profiles in two contrasting soil textures and different post-logging practices, to identify litter leaching, fragmentation, and humification processes coupled with soil aggregation and root dynamics. The classification of humus forms resulted in the identification of three humus systems: Mull, Moder and Amphi. Sandy and clayey textures differ statistically (X2 = 51.83; p < 0.001), with sandy texture predominating in Moder system, while clayey texture exhibits Amphi or Mull systems. Sandy textures presented a weak soil aggregation, but strong association with root (rhiOF) and humification (OH) horizons, leading to a clear transition between organic and mineral pools. In contrast, clayey textures show a strong carbon storage and soil aggregation. The humipedon horizons differ significantly (p = 0.009; stress = 0.1142 and R2 = 0.987) and their dynamics clearly evolve towards an opposite dire... Mostrar Tudo |
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Palavras-Chave: |
Litter; Lixo. |
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Thesagro: |
Carbono; Húmus; Lixiviação; Solo Tropical; Textura do Solo. |
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Thesaurus Nal: |
Carbon; Soil texture; Tropical soils. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02579naa a2200277 a 4500
001 2142057
005 2022-04-11
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.geoderma.2022.115849$2DOI
100 1 $aCESÁRIO, F. V.
245 $aHumipedon dynamics in lowland Amazonian forests$bare there Amphi humus forms even in tropical rain forests?$h[electronic resource]
260 $c2022
520 $aUnderstanding humipedon dynamics is crucial to capture forest ecological processes. However, studies disentangling humipedon dynamics in tropical forests are scarce. The humipedon structure classification is important because it shows how forest ecosystems interact and react with (a)biotic factors. Here, we used the humus morpho-functional approach to investigate how soil texture and reduced impact-logging affect forest humipedon structure and dynamics in the eastern Amazon. We used a morpho-functional classification of humus forms as the foundation to visualize, classify, and code 133 soil profiles in two contrasting soil textures and different post-logging practices, to identify litter leaching, fragmentation, and humification processes coupled with soil aggregation and root dynamics. The classification of humus forms resulted in the identification of three humus systems: Mull, Moder and Amphi. Sandy and clayey textures differ statistically (X2 = 51.83; p < 0.001), with sandy texture predominating in Moder system, while clayey texture exhibits Amphi or Mull systems. Sandy textures presented a weak soil aggregation, but strong association with root (rhiOF) and humification (OH) horizons, leading to a clear transition between organic and mineral pools. In contrast, clayey textures show a strong carbon storage and soil aggregation. The humipedon horizons differ significantly (p = 0.009; stress = 0.1142 and R2 = 0.987) and their dynamics clearly evolve towards an opposite direction. The classification framework introduced here supports environmental management by promoting speed and viability in diagnosing forest ecosystem soils towards forest protection or use in the landscape, and specific climate mitigation goals both in local and regional planning.
650 $aCarbon
650 $aSoil texture
650 $aTropical soils
650 $aCarbono
650 $aHúmus
650 $aLixiviação
650 $aSolo Tropical
650 $aTextura do Solo
653 $aLitter
653 $aLixo
700 1 $aBALIEIRO, F. de C.
700 1 $aFREITAS, L. J. M. de
773 $tGeoderma$gv. 418, 115849, Jul. 2022.
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| 1. |  | GATIBONI, L. C.; KAMINSKI, J.; PELLEGRINI, J. B. R.; BRUNETO, G.; SAGGIN, A.; FLORES, J. P. C. Influência da adubação fosfatada e da introdução de espécies forrageiras de inverno na oferta de forragem de pastagem natural. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 8, p. 1663-68, ago. 2000. Título em inglês: Influence of phosphorus fertilization and introduction of winter forage species on forage offer from natural pasture.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 2. | | QUEVEDO, P. S.; AVILA, L. F. C.; SAGGIN, A; SILVEIRA T. R.; FEIJÓ, L. S.; FREY JUNIOR, F.; CURCIO B. R.; FARIAS N. A. R. Verificação da transmissão vertical de Neospora spp. em equinos. Pesquisa Veterinária Brasileira, Brasília, DF, v. 35, n.1, p.29-32, jan. 2015.| Biblioteca(s): Embrapa Unidades Centrais. |
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