Biogenic gases in tropical floodplain river
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 c...
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| Format: | Article |
| Language: | English |
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Instituto de Tecnologia do Paraná (Tecpar)
2001-06-01
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| Series: | Brazilian Archives of Biology and Technology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000200006 |
| _version_ | 1819174007364124672 |
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| author | Maria Victória Ramos Ballester José Eduardo dos Santos |
| author_facet | Maria Victória Ramos Ballester José Eduardo dos Santos |
| author_sort | Maria Victória Ramos Ballester |
| collection | DOAJ |
| description | 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.<br>A análise da distribuição de gases biogênicos na planície de inundação do Rio Mogi Guaçu (São Paulo, Brasil) possibilitou o estabelecimento de um gradiente redox para os sistemas aquáticos avaliados, em que o canal principal do rio apresentou-se como o ambiente mais oxidado, seguido da Lagoa do Diogo, e a Lagoa do Infernão apresentando as condições mais redutoras entre os ambientes em questão. A Lagoa do Diogo exporta um total de 853,4 g C.m-2.ano-1, do qual 14,6% é produzido pela metanogênese e 36,7% pela respiração aeróbia. Para a Lagoa do Infernão estes valores foram respectivamente de 2.016 g C.m-2.ano-1, 1,8% e de 41,5%. A exportação de carbono por estes sistemas é realizada, predominantemente na forma de CO2, nos valores de 728,78 g C.m-2.ano-1 para a Lagoa do Diogo e 1.979,72 g C.m-2.ano-1 para a Lagoa do Infernão. Estes padrões parecem estar relacionados com a natureza das condições hidrológicas, com a ação do hidroperíodo e com as características morfológicas do ambiente. |
| first_indexed | 2024-12-22T20:32:07Z |
| format | Article |
| id | doaj.art-678e64fbd4a44d00b64be7b5f443ade0 |
| institution | Directory Open Access Journal |
| issn | 1516-8913 1678-4324 |
| language | English |
| last_indexed | 2024-12-22T20:32:07Z |
| publishDate | 2001-06-01 |
| publisher | Instituto de Tecnologia do Paraná (Tecpar) |
| record_format | Article |
| series | Brazilian Archives of Biology and Technology |
| spelling | doaj.art-678e64fbd4a44d00b64be7b5f443ade02022-12-21T18:13:34ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242001-06-0144214114710.1590/S1516-89132001000200006Biogenic gases in tropical floodplain riverMaria Victória Ramos BallesterJosé Eduardo dos SantosAnalysis 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.<br>A análise da distribuição de gases biogênicos na planície de inundação do Rio Mogi Guaçu (São Paulo, Brasil) possibilitou o estabelecimento de um gradiente redox para os sistemas aquáticos avaliados, em que o canal principal do rio apresentou-se como o ambiente mais oxidado, seguido da Lagoa do Diogo, e a Lagoa do Infernão apresentando as condições mais redutoras entre os ambientes em questão. A Lagoa do Diogo exporta um total de 853,4 g C.m-2.ano-1, do qual 14,6% é produzido pela metanogênese e 36,7% pela respiração aeróbia. Para a Lagoa do Infernão estes valores foram respectivamente de 2.016 g C.m-2.ano-1, 1,8% e de 41,5%. A exportação de carbono por estes sistemas é realizada, predominantemente na forma de CO2, nos valores de 728,78 g C.m-2.ano-1 para a Lagoa do Diogo e 1.979,72 g C.m-2.ano-1 para a Lagoa do Infernão. Estes padrões parecem estar relacionados com a natureza das condições hidrológicas, com a ação do hidroperíodo e com as características morfológicas do ambiente.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000200006Biogenic gasesmethanogenesisaerobic respirationCO2 production |
| spellingShingle | Maria Victória Ramos Ballester José Eduardo dos Santos Biogenic gases in tropical floodplain river Brazilian Archives of Biology and Technology Biogenic gases methanogenesis aerobic respiration CO2 production |
| title | Biogenic gases in tropical floodplain river |
| title_full | Biogenic gases in tropical floodplain river |
| title_fullStr | Biogenic gases in tropical floodplain river |
| title_full_unstemmed | Biogenic gases in tropical floodplain river |
| title_short | Biogenic gases in tropical floodplain river |
| title_sort | biogenic gases in tropical floodplain river |
| topic | Biogenic gases methanogenesis aerobic respiration CO2 production |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000200006 |
| work_keys_str_mv | AT mariavictoriaramosballester biogenicgasesintropicalfloodplainriver AT joseeduardodossantos biogenicgasesintropicalfloodplainriver |