The size distribution of organic carbon in headwater streams in the Amazon basin
Despite the strong representativeness of streams in the Amazon basin, their role in the accumulation of coarse particulate organic carbon (CPOC), fine particulate organic carbon (FPOC), and dissolved organic carbon (DOC) in transport, an important energy source in these environments, is poorly known...
| Autor principal: | Paula, Joana D’Arc de |
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| Outros Autores: | Luizão, Flávio Jesus, Piedade, Maria Teresa Fernandez |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Environmental Science and Pollution Research
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17316 |
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oai:repositorio:1-17316 |
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oai:repositorio:1-17316 The size distribution of organic carbon in headwater streams in the Amazon basin Paula, Joana D’Arc de Luizão, Flávio Jesus Piedade, Maria Teresa Fernandez Arboreal Species Energy Resource Headwater Organic Carbon Particulate Organic Carbon Precipitation Assessment Quantitative Analysis Size Distribution Soil Fertility Transformation Amazon Basin Carbon Humic Substance Particulate Matter Analysis Brasil Chemistry Humic Substance Particulate Matter Peru River South America Water Quality Brasil Carbon Humic Substances Particulate Matter Peru Rivers South America Water Quality Despite the strong representativeness of streams in the Amazon basin, their role in the accumulation of coarse particulate organic carbon (CPOC), fine particulate organic carbon (FPOC), and dissolved organic carbon (DOC) in transport, an important energy source in these environments, is poorly known. It is known that the arboreal vegetation in the Amazon basin is influenced by soil fertility and rainfall gradients, but would these gradients promote local differences in organic matter in headwater streams? To answer this question, 14 low-order streams were selected within these gradients along the Amazon basin, with extensions that varied between 4 and 8 km. The efficiency of the transformation of particulate into dissolved carbon fractions was assessed for each stream. The mean monthly benthic organic matter storage ranged between 1.58 and 9.40 t ha−1 month−1. In all locations, CPOC was the most abundant fraction in biomass, followed by FPOC and DOC. Rainfall and soil fertility influenced the distribution of the C fraction (p = 0.01), showing differentiated particulate organic carbon (POC) storage and DOC transportation along the basin. Furthermore, the results revealed that carbon quantification at the basin level could be underestimated, ultimately influencing the global carbon calculations for the region. This is especially due to the fact that the majority of studies consider only fine particulate organic matter and dissolved organic matter, which represent less than 50 % of the stored and transported carbon in streambeds. © 2016, Springer-Verlag Berlin Heidelberg. 2020-06-15T21:41:10Z 2020-06-15T21:41:10Z 2016 Artigo https://repositorio.inpa.gov.br/handle/1/17316 10.1007/s11356-016-6041-6 en Volume 23, Número 12, Pags. 11461-11470 Restrito Environmental Science and Pollution Research |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Arboreal Species Energy Resource Headwater Organic Carbon Particulate Organic Carbon Precipitation Assessment Quantitative Analysis Size Distribution Soil Fertility Transformation Amazon Basin Carbon Humic Substance Particulate Matter Analysis Brasil Chemistry Humic Substance Particulate Matter Peru River South America Water Quality Brasil Carbon Humic Substances Particulate Matter Peru Rivers South America Water Quality |
| spellingShingle |
Arboreal Species Energy Resource Headwater Organic Carbon Particulate Organic Carbon Precipitation Assessment Quantitative Analysis Size Distribution Soil Fertility Transformation Amazon Basin Carbon Humic Substance Particulate Matter Analysis Brasil Chemistry Humic Substance Particulate Matter Peru River South America Water Quality Brasil Carbon Humic Substances Particulate Matter Peru Rivers South America Water Quality Paula, Joana D’Arc de The size distribution of organic carbon in headwater streams in the Amazon basin |
| topic_facet |
Arboreal Species Energy Resource Headwater Organic Carbon Particulate Organic Carbon Precipitation Assessment Quantitative Analysis Size Distribution Soil Fertility Transformation Amazon Basin Carbon Humic Substance Particulate Matter Analysis Brasil Chemistry Humic Substance Particulate Matter Peru River South America Water Quality Brasil Carbon Humic Substances Particulate Matter Peru Rivers South America Water Quality |
| description |
Despite the strong representativeness of streams in the Amazon basin, their role in the accumulation of coarse particulate organic carbon (CPOC), fine particulate organic carbon (FPOC), and dissolved organic carbon (DOC) in transport, an important energy source in these environments, is poorly known. It is known that the arboreal vegetation in the Amazon basin is influenced by soil fertility and rainfall gradients, but would these gradients promote local differences in organic matter in headwater streams? To answer this question, 14 low-order streams were selected within these gradients along the Amazon basin, with extensions that varied between 4 and 8 km. The efficiency of the transformation of particulate into dissolved carbon fractions was assessed for each stream. The mean monthly benthic organic matter storage ranged between 1.58 and 9.40 t ha−1 month−1. In all locations, CPOC was the most abundant fraction in biomass, followed by FPOC and DOC. Rainfall and soil fertility influenced the distribution of the C fraction (p = 0.01), showing differentiated particulate organic carbon (POC) storage and DOC transportation along the basin. Furthermore, the results revealed that carbon quantification at the basin level could be underestimated, ultimately influencing the global carbon calculations for the region. This is especially due to the fact that the majority of studies consider only fine particulate organic matter and dissolved organic matter, which represent less than 50 % of the stored and transported carbon in streambeds. © 2016, Springer-Verlag Berlin Heidelberg. |
| format |
Artigo |
| author |
Paula, Joana D’Arc de |
| author2 |
Luizão, Flávio Jesus Piedade, Maria Teresa Fernandez |
| author2Str |
Luizão, Flávio Jesus Piedade, Maria Teresa Fernandez |
| title |
The size distribution of organic carbon in headwater streams in the Amazon basin |
| title_short |
The size distribution of organic carbon in headwater streams in the Amazon basin |
| title_full |
The size distribution of organic carbon in headwater streams in the Amazon basin |
| title_fullStr |
The size distribution of organic carbon in headwater streams in the Amazon basin |
| title_full_unstemmed |
The size distribution of organic carbon in headwater streams in the Amazon basin |
| title_sort |
size distribution of organic carbon in headwater streams in the amazon basin |
| publisher |
Environmental Science and Pollution Research |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17316 |
| _version_ |
1787142427019051008 |
| score |
11.755432 |