| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
04/08/1994 |
|
Data da última atualização: |
04/08/1994 |
|
Autoria: |
GONZAGA, J. V. |
|
Título: |
Qualidade da madeira de Acacia mearnsii da região de Guaiba - RS. |
|
Ano de publicação: |
1982 |
|
Fonte/Imprenta: |
Silvicultura, São Paulo, v. 7, n. 23, p. 56, mar./abr. 1982. |
|
Idioma: |
Português |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 00335naa a2200109 a 4500
001 1288128
005 1994-08-04
008 1982 bl uuuu u00u1 u #d
100 1 $aGONZAGA, J. V.
245 $aQualidade da madeira de Acacia mearnsii da região de Guaiba - RS.
260 $c1982
773 $tSilvicultura, São Paulo$gv. 7, n. 23, p. 56, mar./abr. 1982.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
11/09/2019 |
|
Data da última atualização: |
12/02/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
FROUFE, L. C. M.; SCHWIDERKE, D. K.; CASTILHANO, A. C.; CEZAR, R. M.; STEENBOCK, W.; SEOANE, C. E. S.; BOGNOLA, I. A.; VEZZANI, F. M. |
|
Afiliação: |
LUIS CLAUDIO MARANHAO FROUFE, CNPF; Daniel Kramer Schwiderke, Programa de Pós-Graduação da UFPR; Amanda Costa Castilhano, PUC-PR; Raul Matias Cezar, Programa de Pós-Graduação da UFPR; Walter Steenbock, ICMBio; CARLOS EDUARDO SICOLI SEOANE, CNPF; ITAMAR ANTONIO BOGNOLA, CNPF; Fabiane Machado Vezzani, Programa de Pós-Graduação da UFPR. |
|
Título: |
Nutrient cycling from leaf litter in multistrata successional agroforestry systems and natural regeneration at Brazilian Atlantic Rainforest Biome. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Agroforestry System, v. 94, n. 1, p. 159-171, Feb. 2020. |
|
DOI: |
10.1007/s10457-019-00377-5 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The conversion of forests to agricultural crops impacts these ecosystems, causing negative changes in the biological, physical and chemical soil attributes. Agroforestry systems (AFs) represent an environmental sustainable alternative that can bind healthy food production and nature conservation. Litter production and decomposition are key roles to carbon and nutrient cycles in the tropics, as the main sources of nutrients for plant growing. The aim of this study was to quantify the amount of leaf litter accumulated aboveground and its contribution to nutrient return through decomposition process in 5- and 10-year multistrata successional agroforestry systems (AF5 and AF10) as compared to 10-year natural regeneration areas (NR10) at Brazilian Atlantic Rainforest Biome. Greater amounts of standing litter were observed on AF5 (61 Mg ha-1) as compared to AF10 (45 Mg ha-1) and NR10 (39 Mg ha-1), with leaf contribution of 17% (AF5), 25% (NR10) and 30% (AF10). Leaf decomposition was performed using litterbags, and all curves were fitted to a double exponential model for remaining mass, C and Mg and to a single exponential model for N, P, K and Ca. The half-time life of decomposing leaves varied from 173 days (NR10) to 289 (AF5) and 301 days (AF10), and the half-time mineralization of nutrients varied from 15 (N on AF5) to 257 days (K on AF10). Despite their low contribution on total standing litter, leaf fraction is able to return at least 100 kg ha-1 N, 5 kg ha-1 P and 10 kg ha-1 K to soil of multistrata agroforestry systems, reducing NPK external inputs dependence to small farmers. MenosThe conversion of forests to agricultural crops impacts these ecosystems, causing negative changes in the biological, physical and chemical soil attributes. Agroforestry systems (AFs) represent an environmental sustainable alternative that can bind healthy food production and nature conservation. Litter production and decomposition are key roles to carbon and nutrient cycles in the tropics, as the main sources of nutrients for plant growing. The aim of this study was to quantify the amount of leaf litter accumulated aboveground and its contribution to nutrient return through decomposition process in 5- and 10-year multistrata successional agroforestry systems (AF5 and AF10) as compared to 10-year natural regeneration areas (NR10) at Brazilian Atlantic Rainforest Biome. Greater amounts of standing litter were observed on AF5 (61 Mg ha-1) as compared to AF10 (45 Mg ha-1) and NR10 (39 Mg ha-1), with leaf contribution of 17% (AF5), 25% (NR10) and 30% (AF10). Leaf decomposition was performed using litterbags, and all curves were fitted to a double exponential model for remaining mass, C and Mg and to a single exponential model for N, P, K and Ca. The half-time life of decomposing leaves varied from 173 days (NR10) to 289 (AF5) and 301 days (AF10), and the half-time mineralization of nutrients varied from 15 (N on AF5) to 257 days (K on AF10). Despite their low contribution on total standing litter, leaf fraction is able to return at least 100 kg ha-1 N, 5 kg ha-1 P and 10 kg ha-1... Mostrar Tudo |
|
Palavras-Chave: |
Agrofloresta; Decay rates; Decomposição das folhas; Leaf decomposition; Litterbag; Litterfall; Mata Atlântica. |
|
Thesagro: |
Regeneração Natural. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02584naa a2200313 a 4500
001 2112134
005 2020-02-12
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1007/s10457-019-00377-5$2DOI
100 1 $aFROUFE, L. C. M.
245 $aNutrient cycling from leaf litter in multistrata successional agroforestry systems and natural regeneration at Brazilian Atlantic Rainforest Biome.$h[electronic resource]
260 $c2020
520 $aThe conversion of forests to agricultural crops impacts these ecosystems, causing negative changes in the biological, physical and chemical soil attributes. Agroforestry systems (AFs) represent an environmental sustainable alternative that can bind healthy food production and nature conservation. Litter production and decomposition are key roles to carbon and nutrient cycles in the tropics, as the main sources of nutrients for plant growing. The aim of this study was to quantify the amount of leaf litter accumulated aboveground and its contribution to nutrient return through decomposition process in 5- and 10-year multistrata successional agroforestry systems (AF5 and AF10) as compared to 10-year natural regeneration areas (NR10) at Brazilian Atlantic Rainforest Biome. Greater amounts of standing litter were observed on AF5 (61 Mg ha-1) as compared to AF10 (45 Mg ha-1) and NR10 (39 Mg ha-1), with leaf contribution of 17% (AF5), 25% (NR10) and 30% (AF10). Leaf decomposition was performed using litterbags, and all curves were fitted to a double exponential model for remaining mass, C and Mg and to a single exponential model for N, P, K and Ca. The half-time life of decomposing leaves varied from 173 days (NR10) to 289 (AF5) and 301 days (AF10), and the half-time mineralization of nutrients varied from 15 (N on AF5) to 257 days (K on AF10). Despite their low contribution on total standing litter, leaf fraction is able to return at least 100 kg ha-1 N, 5 kg ha-1 P and 10 kg ha-1 K to soil of multistrata agroforestry systems, reducing NPK external inputs dependence to small farmers.
650 $aRegeneração Natural
653 $aAgrofloresta
653 $aDecay rates
653 $aDecomposição das folhas
653 $aLeaf decomposition
653 $aLitterbag
653 $aLitterfall
653 $aMata Atlântica
700 1 $aSCHWIDERKE, D. K.
700 1 $aCASTILHANO, A. C.
700 1 $aCEZAR, R. M.
700 1 $aSTEENBOCK, W.
700 1 $aSEOANE, C. E. S.
700 1 $aBOGNOLA, I. A.
700 1 $aVEZZANI, F. M.
773 $tAgroforestry System$gv. 94, n. 1, p. 159-171, Feb. 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
