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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
24/10/2023 |
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Data da última atualização: |
24/10/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
IBARR, M. A.; ZANATTA, J. A.; DIECKOW, J.; RIBEIRO, R. H.; SCHIRMANN, J.; RACHWAL, M. F. G.; STAHL, J.; SIMON, P. L. |
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Afiliação: |
MARIANA ALVES IBARR, UNIVERSIDADE FEDERAL DO PARANÁ; JOSILEIA ACORDI ZANATTA, CNPF; JEFERSON DIECKOW, UNIVERSIDADE FEDERAL DO PARANÁ; RICARDO HENRIQUE RIBEIRO, UNIVERSIDADE FEDERAL DO PARANÁ; JANQUIELI SCHIRMANN, BOLSISTA DA EMBRAPA FLORESTAS; MARCOS FERNANDO GLUCK RACHWAL, CNPF; JAMES STAHL, KLABIN; PRISCILA LUZIA SIMON, AGRESEARCH INVERMAY. |
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Título: |
Nitrous oxide and methane emissions from a Ferralsol as affected by loblolly pine cultivation time in subtropical Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 903, 166471, 2023. |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2023.166471 |
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Idioma: |
Português |
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Conteúdo: |
Abstract. We hypothesized that the age of loblolly pine stands influences soil methane (CH4) and nitrous oxide (N2O) emissions. This is a relevant topic to be studied in subtropical Brazil, where the pine plantation area is increasing considerably. We evaluated N2O and CH4 emissions for two years in a Ferralsol under loblolly pine (Pinus taeda L.) stands of 1, 9 and 18 year-olds and a native forest (NF). We calculated the net CO2eq emission by considering the N2O and CH4 emissions from soil and the carbon (C) accumulation as litter in the forest floor. The soil N2O emission reduced gradually over the loblolly pine cultivation years, whereas CH4 uptake rates showed no clear pattern. Soil N2O emission showed a positive relationship with soil temperature in NF, and with soil ammonium and nitrate intensities in the pine stands. Soil CH4 uptake was inversely related to water-filled pore space in the pine stands, but this relationship was not observed in NF. The soil CH4 uptake rate was 4.6 times higher (p < 0.10) in NF than the average uptake in loblolly pine stands. On the other hand, soil N2O emissions in 9 and 18- year-old stands were similar (p > 0.10) to those in NF (1.3 kg N ha 1 yr 1). Our results suggest that cultivation with loblolly pine for 18 years can reduce soil N2O emission, and the uptake of CH4 in this system offsets 17 % of N2O emissions. Furthermore, the C accumulation as litter in the forest floor of the mature pine stands (9- and 18- year-old) generated a net emission of 1.6 Mg CO2eq ha 1 yr 1, showing to be an expressive offsetting mech- anism. Therefore, we conclude that aged loblolly forests can reach N2O emissions levels comparable to those of NF, and the C sequestration in these forests floor can significantly contribute to offset N2O emissions and act as sink for net atmospheric CO2eq. MenosAbstract. We hypothesized that the age of loblolly pine stands influences soil methane (CH4) and nitrous oxide (N2O) emissions. This is a relevant topic to be studied in subtropical Brazil, where the pine plantation area is increasing considerably. We evaluated N2O and CH4 emissions for two years in a Ferralsol under loblolly pine (Pinus taeda L.) stands of 1, 9 and 18 year-olds and a native forest (NF). We calculated the net CO2eq emission by considering the N2O and CH4 emissions from soil and the carbon (C) accumulation as litter in the forest floor. The soil N2O emission reduced gradually over the loblolly pine cultivation years, whereas CH4 uptake rates showed no clear pattern. Soil N2O emission showed a positive relationship with soil temperature in NF, and with soil ammonium and nitrate intensities in the pine stands. Soil CH4 uptake was inversely related to water-filled pore space in the pine stands, but this relationship was not observed in NF. The soil CH4 uptake rate was 4.6 times higher (p < 0.10) in NF than the average uptake in loblolly pine stands. On the other hand, soil N2O emissions in 9 and 18- year-old stands were similar (p > 0.10) to those in NF (1.3 kg N ha 1 yr 1). Our results suggest that cultivation with loblolly pine for 18 years can reduce soil N2O emission, and the uptake of CH4 in this system offsets 17 % of N2O emissions. Furthermore, the C accumulation as litter in the forest floor of the mature pine stands (9- and 18- year-old) generated a net... Mostrar Tudo |
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Palavras-Chave: |
Forest floor; Gases de efeito estufa; Pine; Sequestro de carbono; Stand age. |
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Thesagro: |
Floresta; Pinus spp. |
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Thesaurus Nal: |
Carbon sequestration; Forests; Greenhouse gases. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02839naa a2200337 a 4500
001 2157448
005 2023-10-24
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2023.166471$2DOI
100 1 $aIBARR, M. A.
245 $aNitrous oxide and methane emissions from a Ferralsol as affected by loblolly pine cultivation time in subtropical Brazil.$h[electronic resource]
260 $c2023
520 $aAbstract. We hypothesized that the age of loblolly pine stands influences soil methane (CH4) and nitrous oxide (N2O) emissions. This is a relevant topic to be studied in subtropical Brazil, where the pine plantation area is increasing considerably. We evaluated N2O and CH4 emissions for two years in a Ferralsol under loblolly pine (Pinus taeda L.) stands of 1, 9 and 18 year-olds and a native forest (NF). We calculated the net CO2eq emission by considering the N2O and CH4 emissions from soil and the carbon (C) accumulation as litter in the forest floor. The soil N2O emission reduced gradually over the loblolly pine cultivation years, whereas CH4 uptake rates showed no clear pattern. Soil N2O emission showed a positive relationship with soil temperature in NF, and with soil ammonium and nitrate intensities in the pine stands. Soil CH4 uptake was inversely related to water-filled pore space in the pine stands, but this relationship was not observed in NF. The soil CH4 uptake rate was 4.6 times higher (p < 0.10) in NF than the average uptake in loblolly pine stands. On the other hand, soil N2O emissions in 9 and 18- year-old stands were similar (p > 0.10) to those in NF (1.3 kg N ha 1 yr 1). Our results suggest that cultivation with loblolly pine for 18 years can reduce soil N2O emission, and the uptake of CH4 in this system offsets 17 % of N2O emissions. Furthermore, the C accumulation as litter in the forest floor of the mature pine stands (9- and 18- year-old) generated a net emission of 1.6 Mg CO2eq ha 1 yr 1, showing to be an expressive offsetting mech- anism. Therefore, we conclude that aged loblolly forests can reach N2O emissions levels comparable to those of NF, and the C sequestration in these forests floor can significantly contribute to offset N2O emissions and act as sink for net atmospheric CO2eq.
650 $aCarbon sequestration
650 $aForests
650 $aGreenhouse gases
650 $aFloresta
650 $aPinus spp
653 $aForest floor
653 $aGases de efeito estufa
653 $aPine
653 $aSequestro de carbono
653 $aStand age
700 1 $aZANATTA, J. A.
700 1 $aDIECKOW, J.
700 1 $aRIBEIRO, R. H.
700 1 $aSCHIRMANN, J.
700 1 $aRACHWAL, M. F. G.
700 1 $aSTAHL, J.
700 1 $aSIMON, P. L.
773 $tScience of the Total Environment$gv. 903, 166471, 2023.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
14/10/2020 |
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Data da última atualização: |
14/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
PAGLIARINI, M. K.; KIERAS, W. S.; MOREIRA, J. P.; SOUSA, V. A. de; SHIMIZU, J. Y.; MORAES, M. L. T. de; FURLANI JUNIOR, E.; AGUIAR, A. V. de. |
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Afiliação: |
Maximiliano Kawahata Pagliarini, Universidade Federal da Grande Dourados; Wesllen Schuhli Kieras, UFPR; Juliana Prado Moreira, UNESP; VALDERES APARECIDA DE SOUSA, CNPF; Jarbas Yukio Shimizu, Pesquisador aposentado da Embrapa Florestas; Mario Luiz Teixeira de Moraes, UNESP; Enes Furlani Junior, UNESP; ANANDA VIRGINIA DE AGUIAR, CNPF. |
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Título: |
Genetic divergence among slash pine second generation progenies at an early age. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Scientia Forestalis, v. 48, n. 126, e2848, 2020. 11 p. |
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DOI: |
https://doi.org/10.18671/scifor.v48n126.01 |
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Idioma: |
Inglês |
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Conteúdo: |
O objetivo do estudo foi estimar a divergência genética entre progênies de polinização aberta de Pinus elliottii em idade precoce. Dois testes de progênie foram estabelecidos em delineamento de blocos casualizados, uma planta por parcela, plantados em março de 2009, em espaçamento 3 x 3 m. Um teste foi plantado em Ribeirão Branco, São Paulo, envolvendo 44 progênies em 40 blocos. O outro foi plantado em Ponta Grossa, Paraná, com 24 progênies e 32 blocos. Foram avaliados caracteres de crescimento e de forma cinco anos após o plantio. A divergência genética foi avaliada pelo método de Mahalanobis. Dois métodos de agrupamento hierárquico foram comparados: UPGMA e Otimização de Tocher. Ambos mostraram resultados similares e identificaram cinco e dez grupos, respectivamente para os testes de Ribeirão Branco e Ponta Grossa. Com a finalidade de evitar a perda de ganho genético nas gerações subsequentes, cruzamentos deverão ser restritos entre indivíduos de grupos distintos. |
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Palavras-Chave: |
Distância de Mahalanobis; Mahalanobis distance; Otimização de Tocher; Tocher optimization; UPGMA. |
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Thesagro: |
Pinus Elliottii. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/216637/1/Valderes-2318-1222-scifor-48-126-e2848.pdf
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Marc: |
LEADER 01892naa a2200289 a 4500
001 2125485
005 2020-10-14
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.18671/scifor.v48n126.01$2DOI
100 1 $aPAGLIARINI, M. K.
245 $aGenetic divergence among slash pine second generation progenies at an early age.$h[electronic resource]
260 $c2020
520 $aO objetivo do estudo foi estimar a divergência genética entre progênies de polinização aberta de Pinus elliottii em idade precoce. Dois testes de progênie foram estabelecidos em delineamento de blocos casualizados, uma planta por parcela, plantados em março de 2009, em espaçamento 3 x 3 m. Um teste foi plantado em Ribeirão Branco, São Paulo, envolvendo 44 progênies em 40 blocos. O outro foi plantado em Ponta Grossa, Paraná, com 24 progênies e 32 blocos. Foram avaliados caracteres de crescimento e de forma cinco anos após o plantio. A divergência genética foi avaliada pelo método de Mahalanobis. Dois métodos de agrupamento hierárquico foram comparados: UPGMA e Otimização de Tocher. Ambos mostraram resultados similares e identificaram cinco e dez grupos, respectivamente para os testes de Ribeirão Branco e Ponta Grossa. Com a finalidade de evitar a perda de ganho genético nas gerações subsequentes, cruzamentos deverão ser restritos entre indivíduos de grupos distintos.
650 $aPinus Elliottii
653 $aDistância de Mahalanobis
653 $aMahalanobis distance
653 $aOtimização de Tocher
653 $aTocher optimization
653 $aUPGMA
700 1 $aKIERAS, W. S.
700 1 $aMOREIRA, J. P.
700 1 $aSOUSA, V. A. de
700 1 $aSHIMIZU, J. Y.
700 1 $aMORAES, M. L. T. de
700 1 $aFURLANI JUNIOR, E.
700 1 $aAGUIAR, A. V. de
773 $tScientia Forestalis$gv. 48, n. 126, e2848, 2020. 11 p.
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