SciELO - Scientific Electronic Library Online

vol.35 issue8Isolation and partial chemical analysis of exopolysaccharides from cultivated marine diatom Coscinodiscus wailesii (Coscinodiscales, Bacillariophyta)Mesopore generation in ZSM-5 zeolites and their effects on conversion of ethanol to olefins author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Química Nova

Print version ISSN 0100-4042


RODRIGUES, Renato de Aragão Ribeiro  and  MELLO, William Zamboni de. Nitrous oxide fluxes in Montane Tropical Rainforest Soil in Serra dos Órgãos, RJ. Quím. Nova [online]. 2012, vol.35, n.8, pp.1549-1553. ISSN 0100-4042.

Soil fluxes of N2O were determined over one year in montane tropical rainforest of southeastern Brazil with average annual rainfall of 2.8 m. Annual mean (± standard deviation) and median N2O fluxes were 3.0 ± 1.4 and 2.7 µg N m-2 h-1, respectively, is 5-10 times lower than mean values reported in literature for tropical rainforest soils in the Amazon basin. N2O fluxes varied spatially and seasonally, were about twice as high during summer as in winter, and significantly influenced by both monthly precipitation and soil temperature.

Keywords : soil gas fluxes; nitrogen biogeochemical cycle; ozone-depleting substances.

        · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License