| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3J32QKP | |||
| Repository | sid.inpe.br/mtc-m21b/2015/02.24.13.56 | |||
| Last Update | 2015:02.24.13.56.14 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2015/02.24.13.56.14 | |||
| Metadata Last Update | 2024:05.10.14.00.36 (UTC) simone | |||
| DOI | 10.5194/bg-12-147-2015 | |||
| ISSN | 1726-4170 | |||
| Citation Key | PachecoSACRASAO:2015:EfRiIn | |||
| Title | The effects of river inflow and retention time on the spatial heterogeneity of chlorophyll and water–air CO2 fluxes in a tropical hydropower reservoir  | |||
| Year | 2015 | |||
| Access Date | 2024, May 18 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 947 KiB | |||
| 2. Context | ||||
| Author | 1 Pacheco, Felipe Siqueira 2 Soares, M. C. S. 3 Assireu, A. T. 4 Curtarelli, Marcelo Pedroso 5 Roland, F. 6 Abril, G. 7 Stech, José Luiz 8 Alvalá, Plínio Carlos 9 Ometto, Jean Pierre Henry Balbaud | |||
| Resume Identifier | 1 2 3 4 5 6 7 8JMKD3MGP5W/3C9JHHN 8 8JMKD3MGP5W/3C9JJ4C | |||
| Group | 1 CST-CST-INPE-MCTI-GOV-BR 2 3 4 SER-SRE-SPG-INPE-MCTI-GOV-BR 5 6 7 DSR-OBT-INPE-MCTI-GOV-BR 8 CST-CST-INPE-MCTI-GOV-BR 9 CST-CST-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Universidade Federal de Juiz de Fora (UFJF) 3 Universidade Federal de Itajubá (UNIFEI) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Universidade Federal de Juiz de Fora (UFJF) 6 Laboratoire Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) 7 Instituto Nacional de Pesquisas Espaciais (INPE) 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 felipe.pacheco@inpe.br 2 3 4 mpedroso.curtarelli@gmail.com 5 6 7 stech@ltid.inpe.br 8 plinio.alvala@inpe.br 9 jean.ometto@inpe.br | |||
| Journal | Biogeosciences | |||
| Volume | 12 | |||
| Pages | 147-162 | |||
| Secondary Mark | A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_CIÊNCIAS_AMBIENTAIS A1_CIÊNCIAS_AGRÁRIAS_I A1_BIODIVERSIDADE A2_CIÊNCIAS_BIOLÓGICAS_I B1_ASTRONOMIA_/_FÍSICA | |||
| History (UTC) | 2015-02-24 13:56:14 :: simone -> administrator :: 2018-06-04 02:55:16 :: administrator -> simone :: 2015 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Abstract | Abundant research has been devoted to understanding the complexity of the biogeochemical and physical processes that are responsible for greenhouse gas (GHG) emissions from hydropower reservoirs. These systems may have spatially complex and heterogeneous GHG emissions due to flooded biomass, river inflows, primary production and dam operation. In this study, we investigated the relationships between the waterair CO2 fluxes and the phytoplanktonic biomass in the Funil Reservoir, which is an old, stratified tropical reservoir that exhibits intense phytoplankton blooms and a low partial pressure of CO2 (pCO2). Our results indicated that the seasonal and spatial variability of chlorophyll concentrations (Chl) and pCO2 in the Funil Reservoir are related more to changes in the river inflow over the year than to environmental factors such as air temperature and solar radiation. Field data and hydro\-dynamic simulations revealed that river inflow contributes to increased heterogeneity during the dry season due to variations in the reservoir retention time and river temperature. Contradictory conclusions could be drawn if only temporal data collected near the dam were considered without spatial data to represent CO2 fluxes throughout the reservoir. During periods of high retention, the average CO2 fluxes were 10.3 mmol m−2 d−1 based on temporal data near the dam versus −7.2 mmol m−2 d−1 with spatial data from along the reservoir surface. In this case, the use of solely temporal data to calculate CO2 fluxes results in the reservoir acting as a CO2 source rather than a sink. This finding suggests that the lack of spatial data in reservoir C budget calculations can affect regional and global estimates. Our results support the idea that the Funil Reservoir is a dynamic system where the hydrodynamics represented by changes in the river inflow and retention time are potentially a more important force driving both the Chl and pCO2 spatial variability than the in-system ecological factors. | |||
| Area | CST | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > The effects of... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > The effects of... | |||
| Arrangement 3 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > COCST > The effects of... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
| |||
| 4. Conditions of access and use | ||||
| data URL | http://mtc-m21b.sid.inpe.br/ibi/8JMKD3MGP3W34P/3J32QKP | |||
| zipped data URL | http://mtc-m21b.sid.inpe.br/zip/8JMKD3MGP3W34P/3J32QKP | |||
| Language | en | |||
| Target File | Pacheco_effects.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Linking | 8JMKD3MGP5W34M/3GA78RH | |||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3ER446E 8JMKD3MGPCW/3F3NU5S 8JMKD3MGPCW/3F3T29H | |||
| Citing Item List | sid.inpe.br/bibdigital/2013/10.18.22.34 3 sid.inpe.br/bibdigital/2013/10.19.20.40 2 sid.inpe.br/mtc-m21/2012/07.13.14.58.22 1 | |||
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||