Please use this identifier to cite or link to this item:
|Research center of Embrapa/Collection:||Embrapa Cerrados - Artigo em periódico indexado (ALICE)|
|Type of Material:||Artigo em periódico indexado (ALICE)|
|Authors:||OLIVEIRA, A. D. de|
RIBEIRO, F. P.
FERREIRA, E. A. B.
MALAQUIAS, J. V.
ZUIM, D. R.
PINHEIRO, L. de A.
SOARES, J. P. G.
CARVALHO, A. M. de
|Additional Information:||ALEXSANDRA DUARTE DE OLIVEIRA, CPAC; FABIANA PIONTEKOWSKI RIBEIRO, UNB; ELOISA APARECIDA BELLEZA FERREIRA, Cenargen; JUACI VITORIA MALAQUIAS, CPAC; ALCIDES GATTO, UNB; DIANA REGAZZI ZUIM, CPAC; LUCIANO DE ALMEIDA PINHEIRO, SGE; KARINA PULROLNIK, CPAC; JOAO PAULO GUIMARAES SOARES, CPAC; ARMINDA MOREIRA DE CARVALHO, CPAC.|
|Title:||CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil.|
|Publisher:||Scientia Agricola, Piracicaba, v. 78, n. 1, e20180355, 2021.|
|Notes:||Epub Mar 13, 2020|
|Description:||ABSTRACT: Forest soils are N2O sources and commonly act as CH4 sinks. This study evaluated the dynamics of the CH4 and N2O fluxes of soils under Eucalyptus plantations and native Cerrado vegetation, as well as possible interactions between environmental factors and fluxes. The study was carried out in the Distrito Federal, Brazil, during 26 months, in three areas: in two stands of the hybrid Eucalyptus urophylla × Eucalyptus grandis, planted in 2011 (E1), and in 2009 (E2) and native Cerrado vegetation (CE). Measurements to determine the fluxes in a closed static chamber were carried out from Oct 2013 to Nov 2015. Soil and climate factors were monitored. During the study period, the mean CH4 fluxes were ?22.48, ?8.38 and ?1.31 μg CH4 m?2 h?1 and the mean N2O fluxes 5.45, 4.85 and 3.85 μg N2O m?2 h?1 from E1, E2 and CE, respectively. Seasonality affected plantations in the studied sites. Cumulative CH4 influxes were calculated (year-1: ?1.86 to -0.63 kg ha?1 yr?1; year-2: ?1.85 to ?1.34 kg ha?1 yr?1). Cumulative N2O fluxes in the three sites were ≤ 0.85 kg ha?1 yr?1. The change in land use from Cerrado to Eucalyptus plantations did not significantly changed regarding greenhouse gases (GHG), compared to the native vegetation. Flux rates of both gases (N2O and CH4) were low. Temporal variations in GHG fluxes and different ages of the stands did not cause significant differences in cumulative annual fluxes.|
|NAL Thesaurus:||Nitrous oxide|
Greenhouse gas emissions
|Appears in Collections:||Artigo em periódico indexado (CPAC)|
Files in This Item:
|1678-992X-sa-78-01-e20180355.pdf||684,6 kB||Adobe PDF|