| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/3SB3NAH | |||
| Repository | sid.inpe.br/mtc-m21c/2018/12.03.14.22 | |||
| Last Update | 2020:11.25.11.31.11 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2018/12.03.14.22.59 | |||
| Metadata Last Update | 2021:03.06.05.22.34 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | RibeiroPFSOFKSRA:2018:EfLaUs | |||
| Title | Effect of land use and land cover on greenhouse gas emissions from peatlands in the Paraíba Valley, Brazil  | |||
| Year | 2018 | |||
| Access Date | 2024, May 18 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 85 KiB | |||
| 2. Context | ||||
| Author | 1 Ribeiro, Kelly 2 Pacheco, Felipe Siqueira 3 Ferreira, Willian José 4 Sousa Neto, Eraclito Rodrigues de 5 Ometto, Jean Pierre Henry Balbaud 6 Forti, Maria Cristina 7 Krieger Filho, Guenther Carlos 8 Sobra, Anahi Chimini 9 Reis, Samara Venâncio dos 10 Alvalá, Plínio Carlos | |||
| Resume Identifier | 1 2 3 4 5 6 8JMKD3MGP5W/3C9JHR6 7 8 9 10 8JMKD3MGP5W/3C9JJ4C | |||
| Group | 1 CST-CST-SESPG-INPE-MCTIC-GOV-BR 2 CST-CST-SESPG-INPE-MCTIC-GOV-BR 3 COCST-COCST-INPE-MCTIC-GOV-BR 4 CST-CST-SESPG-INPE-MCTIC-GOV-BR 5 COCST-COCST-INPE-MCTIC-GOV-BR 6 COCST-COCST-INPE-MCTIC-GOV-BR 7 8 CST-CST-SESPG-INPE-MCTIC-GOV-BR 9 CST-CST-SESPG-INPE-MCTIC-GOV-BR 10 COCST-COCST-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 Universidade de São Paulo (USP) 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Instituto Nacional de Pesquisas Espaciais (INPE) 10 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 kelly.ribeiro@inpe.br 2 felipe.pacheco@inpe.br 3 willian.ferreira@inpe.br 4 eraclito.neto@inpe.br 5 jean.ometto@inpe.br 6 7 8 anahi.sobral@inpe.br 9 samara.reis@inpe.br 10 plinio.alvala@inpe.br | |||
| Conference Name | AGU Fall Meeting | |||
| Conference Location | Washington, D. C. | |||
| Date | 10-14 dec. | |||
| History (UTC) | 2018-12-03 14:22:59 :: simone -> administrator :: 2019-01-04 16:57:14 :: administrator -> simone :: 2018 2019-01-04 17:17:45 :: simone -> administrator :: 2018 2019-01-14 17:06:39 :: administrator -> simone :: 2018 2020-11-25 11:31:11 :: simone -> administrator :: 2018 2021-03-06 05:22:34 :: administrator -> simone :: 2018 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | Peatlands cover around 570 million hectares worldwide and although most are located in boreal environments, tropical peatlands cover 170 million hectares and store about 860 Gt of carbon. Peat soils store a large amount of carbon and have acted as sinks of atmospheric CO2 for thousands of years but can also act as major sources of GHG emissions into the atmosphere when impacted by anthropogenic activities such as drainage, deforestation, forest fires, and changes from native to agricultural and livestock systems. These changes, besides disturbing the functions of this ecosystem, affect the dynamics of CO2 and CH4 flows. Therefore, the objective of this study is to evaluate the effect of land use change and land cover (LULC) on the dynamics of carbon emissions in tropical peatlands in the Vale do Paraíba region, São Paulo, Brazil. The sampling program was carried out in the lowlands of the Paraíba do Sul River, over different land cover: pastureland, native forest and irrigated rice crop. We used the static chamber technique to estimate GHG fluxes during two seasonal periods (wet season of 2017 and dry season 2018). Our results show that the highest CO2 (g CO2 m-2 yr-1) fluxes were observed in the dry season in pastureland (3,210), followed by native forest (2,174) and irrigated rice crop (2,074). The higher values in the dry season was regulated mainly by peat moisture, organic matter content and groundwater level. The CH4 fluxes (gCH4 m-2 yr-1) were mainly dependent on the moisture, temperature of the peat and groundwater level. The CH4 fluxes were negative (uptake) for pastureland (-5.2) and native forest (-3.1) and positive (emission) for irrigated rice crop (3.1). In the rainy season, methane fluxes were similar for the three land covers, with emissions of 4.0, 4.2 and 3.1 gCH4 m-2 yr-1 for native forest, pastureland and irrigated rice crop, respectively. These results suggest an increasing trend of CO2 emissions in situations of higher temperature and deeper groundwater table, mainly driven by the drainage and deforestation of peatlands in the region. On the other hand, long-term drought conditions may promote methanotrophic activities and consumption of CH4, decreasing CH4 emissions. Thus, the role of the peatlands as sink or source of GHG to the atmosphere will depend mainly on the dynamics of the LULC changes and land management. | |||
| Area | CST | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > COCST > Effect of land... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > CST > Effect of land... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34R/3SB3NAH | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34R/3SB3NAH | |||
| Language | en | |||
| Target File | ribeiro_effect.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3F3T29H 8JMKD3MGPCW/449U4PL | |||
| Citing Item List | sid.inpe.br/bibdigital/2021/03.06.05.18 2 sid.inpe.br/mtc-m21/2012/07.13.14.58.22 1 | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||