Affiliation:
1. Universidade de São Paulo, Brazil
2. Universidade Federal de São Carlos, Brazil
Abstract
Analysis of the distribution of biogenic gases in the floodplain of the Mogi-Guaçu River (São Paulo, Brazil) enabled the establishment of a "redox hierarchy", in which the main channel was the most oxidizing environment, followed by Diogo Lake, with Infernão Lake having the most reducing conditions of the subsystems evaluated. Diogo Lake exported about 853.4 g C.m-2.year-1, of which, 14.6% was generated from methanogenesis and 36.7% by aerobic respiration. For Infernão Lake, these values were 2016 g C.m-2.year-1, 1.8 % and 41.5 %, respectively. Carbon export by these systems was predominantly in the form of CO2, which was responsible for the release of 728.78 g C.m-2.year-1 at Diogo Lake and 1979.72 g C.m-2. year-1 at Infernão Lake. Such patterns may result from the nature of the hydrological conditions, the action of the hydroperiod, and morphological characteristics of the environment.
Reference22 articles.
1. C: N : P Ratios and stable Carbon isotope compositions as indicators of organic matter sources in a riverine wetland system (Mogi-Guaçu River, São Paulo-Brazil);Albuquerque A. L. S.;Wetlands,1997
2. Dynamic of biogenic gases (CH4, CO2 and O2) in the Mogi-Guaçú River floodplain, Ecological Station of Jatai, SP;Ballester M. V. R.,1994
3. Methane flux from the Amazon River floodplain: emissions during rising water;Bartlett K. B.;J. Geophys. Res.,1990
4. Gas exchange rates between air and sea;Broecker W. S.;Earth and Planetary Sci. Lett.,1974
5. Tropospheric methane from an Amazon floodplain lake;Crill P. M.;J. Geophys. Res.,1988
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