Ítem
Acceso Abierto
Flujos de dióxido de carbono (CO2) en suelos con distintos usos en sabanas inundables de la Orinoquia
| dc.contributor.advisor | Fernandes Amaral, João Henrique | |
| dc.creator | Ceballos Jiménez, Juan José | |
| dc.creator.degree | Biólogo | |
| dc.creator.degreeLevel | Pregrado | |
| dc.date.accessioned | 2026-03-20T14:45:37Z | |
| dc.date.available | 2026-03-20T14:45:37Z | |
| dc.date.created | 2026-02-18 | |
| dc.description | Los humedales desempeñan un papel clave en el ciclo global del carbono al regular el intercambio de CO₂ entre la tierra y la atmósfera. En las sabanas inundables de la Orinoquía, coexisten distintos regímenes de fuego y ganadería, existiendo la pregunta respecto a cómo estos disturbios y las condiciones ambientales influyen en la dinámica de los flujos de CO₂ y en el balance neto de carbono. En este estudio evaluamos cómo la productividad primaria bruta (GPP), la respiración del ecosistema (CR) y el intercambio neto de CO2 (NEE) responden a diferentes regímenes de fuego y ganadería, así como a la radiación fotosintéticamente activa (PAR), la humedad y la temperatura (Aire y Suelo) durante las estaciones húmedas y de sequía. Los flujos de CO₂ fueron medidos mediante cámaras estáticas en sabanas inundables de la Orinoquía colombiana. Los resultados mostraron alta variabilidad intra e interestacional, sin diferencias significativas entre estaciones (p > 0.05), lo que sugiere una compensación estacional entre los procesos de captación y emisión de C. La ganadería no afectó GPP ni CR (p > 0.05), pero redujo significativamente la captación neta de CO₂, reflejada en valores de NEE menos negativos (p < 0.001). El fuego anual redujo significativamente CR (p < 0.05) y generó valores de NEE dos a tres veces más negativos que en parcelas sin fuego. GPP y NEE estuvieron fuertemente controlados por PAR (p < 0.001), mientras que CR respondió principalmente a la temperatura del aire y del suelo. En conjunto, estos resultados evidencian que la frecuencia del fuego y su interacción con la ganadería modifican el balance de CO₂ en estas sabanas, resaltando la importancia de considerar los regímenes de disturbio en estrategias de manejo orientadas a la regulación del carbono en ecosistemas de sabanas tropicales. | |
| dc.description.abstract | Wetlands play a key role in the global carbon cycle by regulating the exchange of CO₂ between the land and the atmosphere. In the flooded savannas of the Orinoquía, different fire regimes and grazing coexist, raising the question of how these disturbances and environmental conditions influence the dynamics of CO₂ fluxes and the net carbon balance. In this study, we evaluated how Gross Primary Production (GPP), Ecosystem Respiration (CR), and Net Ecosystem Exchange (NEE) respond to different fire and grazing regimes, as well as to photosynthetically active radiation (PAR), moisture, and temperature (Air and Soil) during the wet and dry seasons. CO₂ fluxes were measured using static chambers in flooded savannas of the Colombian Orinoquía. The results showed high intra- and interseasonal variability, with no significant differences between seasons (p > 0.05), suggesting seasonal compensation between carbon uptake and emission processes. Grazing did not affect GPP or CR (p > 0.05), but significantly reduced net CO₂ uptake, reflected in less negative NEE values (p < 0.001). Annual burning significantly reduced CR (p < 0.05) and generated NEE values two to three times more negative than in plots without fire. GPP and NEE were strongly controlled by PAR (p < 0.001), whereas CR responded mainly to air and soil temperature. Overall, these results show that fire frequency and its interaction with grazing modify the CO₂ balance in these savannas, highlighting the importance of considering disturbance regimes in management strategies aimed at carbon regulation in tropical savanna ecosystems. | |
| dc.format.extent | 33 pp | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.doi | https://doi.org/10.48713/10336_47649 | |
| dc.identifier.uri | https://repository.urosario.edu.co/handle/10336/47649 | |
| dc.language.iso | spa | |
| dc.publisher | Universidad del Rosario | |
| dc.publisher.department | Facultad de Ciencias Naturales | |
| dc.publisher.program | Biología | |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
| dc.rights.accesRights | info:eu-repo/semantics/openAccess | |
| dc.rights.acceso | Abierto (Texto Completo) | |
| dc.rights.licencia | EL AUTOR, manifiesta que la obra objeto de la presente autorización es original y la realizó sin violar o usurpar derechos de autor de terceros, por lo tanto la obra es de exclusiva autoría y tiene la titularidad sobre la misma. | spa |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
| dc.source.bibliographicCitation | Abrigo M, Lezama F, Grela I, Piñeiro G. 2024. Grazing exclusion effects on vegetation structure and soil organic matter in savannas of Río de la Plata grasslands. Journal of Vegetation Science 35: e13304. | |
| dc.source.bibliographicCitation | Abril G, Borges AV. 2019. Ideas and perspectives: carbon leaks from flooded land: do we need to replumb the inland water active pipe? Biogeosciences 16: 769–784 | |
| dc.source.bibliographicCitation | Bartoń, K. (2023). MuMIn: Multi-Model Inference (R package). | |
| dc.source.bibliographicCitation | Bates, D., Mächler, M., Bolker, B., & Walker, S. (2015).Fitting linear mixed-effects models using lme4. Journal of Statistical Software, 67(1), 1–48 | |
| dc.source.bibliographicCitation | Botero Pito AM, Rincón A, Santos Rocha AC, Etter Rothlisberger A, Suárez Castro AF, Andrade Á, Andrade GI. 2024. Biodiversidad, Orinoquia. Estado y tendencias de la biodiversidad continental de Colombia | |
| dc.source.bibliographicCitation | Bridgham SD, Cadillo‐Quiroz H, Keller JK, Zhuang Q. 2013. Methane emissions from wetlands: biogeochemical, microbial, and modeling perspectives from local to global scales. Global Change Biology 19: 1325–1346 | |
| dc.source.bibliographicCitation | Engle DL, Melack JM, Doyle RD, Fisher TR. 2008. High rates of net primary production and turnover of floating grasses on the Amazon floodplain: implications for aquatic respiration and regional CO₂ flux. Global Change Biology 14: 369–381 | |
| dc.source.bibliographicCitation | Fox, J., & Weisberg, S. (2019). An R Companion to Applied Regression (3rd ed.). Thousand Oaks, CA: Sage | |
| dc.source.bibliographicCitation | Grace, J., San José, J. J., Meir, P., Miranda, H. S., & Montes, R. A. (2006). Productivity and carbon fluxes of tropical savannas. Journal of Biogeography, 33(3), 387–400. https://doi.org/10.1111/j.1365-2699.2005.01448.x | |
| dc.source.bibliographicCitation | Hartig, F. (2022). DHARMa: Residual diagnostics for hierarchical (multi-level / mixed) regression models (R package) | |
| dc.source.bibliographicCitation | Iannone, R., Cheng, J., & Schloerke, B. (2023). gt: Easily Create Presentation-Ready Display Tables (R package) | |
| dc.source.bibliographicCitation | Instituto de Hidrología, Meteorología y Estudios Ambientales – IDEAM. (2017). Atlas Climatológico de Colombia. Bogotá, D. C., Colombia: Imprenta Nacional de Colombia | |
| dc.source.bibliographicCitation | Jaramillo Villa Ú, Cortés Duque J, Flórez Ayala C, Torres Carreño GI, Martínez JFI. 2023. Colombia anfibia. Un país de humedales. Segunda edición. Volumen I. | |
| dc.source.bibliographicCitation | Kassambara, A. (2023). ggpubr: “ggplot2” Based Publication Ready Plots (R package version). | |
| dc.source.bibliographicCitation | Kassambara, A. (2023). rstatix: Pipe-Friendly Framework for Basic Statistical Tests (R package version). | |
| dc.source.bibliographicCitation | Le Mer J, Roger P. 2001. Production, oxidation, emission and consumption of methane by soils: a review. European Journal of Soil Biology 37: 25–50 | |
| dc.source.bibliographicCitation | Lüdecke, D., Ben-Shachar, M. S., Patil, I., Waggoner, P., & Makowski, D. (2021). performance: An R package for assessment, comparison and testing of statistical models. Journal of Open Source Software, 6(60), 3139 | |
| dc.source.bibliographicCitation | Kutzbach, L., Schneider, J., Sachs, T., Giebels, M., Nykänen, H., Shurpali, N. J., & Wilmking, M. (2007). CO₂ flux determination by closed-chamber methods can be seriously biased by inappropriate application of linear regression. Biogeosciences, 4(6), 1005–1025 | |
| dc.source.bibliographicCitation | Kuznetsova, A., Brockhoff, P. B., & Christensen, R. H. B. (2017).lmerTest package: Tests in linear mixed effects models. Journal of Statistical Software, 82(13), 1–26 | |
| dc.source.bibliographicCitation | McSherry ME, Ritchie ME. 2013. Effects of grazing on grassland soil carbon: a global review. Global Change Biology 19: 1347–1357 | |
| dc.source.bibliographicCitation | Mitsch WJ, Bernal B, Nahlik AM, Mander Ü, Zhang L, Anderson CJ, Brix H. 2013. Wetlands, carbon, and climate change. Landscape Ecology 28: 583–597 | |
| dc.source.bibliographicCitation | Pedersen, T. L. (2020). patchwork: The Composer of Plots (R package) | |
| dc.source.bibliographicCitation | Pellegrini AF, McLauchlan KK, Hobbie SE, Mack MC, Marcotte AL, Nelson DM, Whittinghill K. 2020. Frequent burning causes large losses of carbon from deep soil layers in a temperate savanna. Journal of Ecology 108: 1426–1441 | |
| dc.source.bibliographicCitation | Rheault et al., (2024). goFlux: A user-friendly way to calculate GHG fluxes yourself, regardless of user experience. Journal of Open Source Software, 9(96), 6393, https://doi.org/10.21105/joss.06393 | |
| dc.source.bibliographicCitation | Rondón M. 2000. Land use and balances of greenhouse gases in Colombian Tropical Savannas. PhD thesis. Cornell University, New York, USA | |
| dc.source.bibliographicCitation | Rondón MA, Acevedo D, Hernández RM, Rubiano Y, Rivera M, Amézquita E, Rao I. 2006. Carbon sequestration potential of the neotropical savannas of Colombia and Venezuela. In: Lal R, Cerri CC, Bernoux M, Etchevers J, Cerri E, eds. Carbon sequestration in soils of Latin America. Binghaminton, New York, USA, Food Product Press ®, an imprint of the Haworth Press Inc, 13904-1580. | |
| dc.source.bibliographicCitation | Schloerke, B., Crowley, J., Cook, D., Briatte, F., Marbach, M., Thoen, E., Elberg, A., & Larmarange, J. (2021). GGally: Extension to ggplot2 (R package version) | |
| dc.source.bibliographicCitation | Triches, N. Y., Engel, J., Bolek, A., Vesala, T., Marushchak, M. E., Virkkala, A.-M., & Göckede, M. (2025). Practical guidelines for reproducible N₂O flux chamber measurements in nutrient-poor ecosystems. Atmospheric Measurement Techniques, 18(14), 3407–3424 | |
| dc.source.bibliographicCitation | Venables, W. N., & Ripley, B. D. (2002). Modern Applied Statistics with S (4th ed.). New York: Springer | |
| dc.source.bibliographicCitation | Wan L, Liu G, Sun J, Ma J, Cheng H, Shen Y, Su X. 2024. Optimizing grazing exclusion duration for carbon sequestration in grasslands: incorporating temporal heterogeneity of aboveground biomass and soil organic carbon. Science of the Total Environment 927: 172006 | |
| dc.source.bibliographicCitation | Wickham, H., Averick, M., Bryan, J., Chang, W., McGowan, L. D., François, R., Grolemund, G., Hayes, A., Henry, L., Hester, J., Kuhn, M., Pedersen, T. L., Miller, E., Bache, S. M., Müller, K., Ooms, J., Robinson, D., Seidel, D. P., Spinu, V., Takahashi, K., Vaughan, D., Wilke, C., Woo, K., & Yutani, H. (2019). Welcome to the tidyverse. Journal of Open Source Software, 4(43), 1686 | |
| dc.source.bibliographicCitation | Zeileis, A. (2004).Econometric computing with HC and HAC covariance matrix estimators. Journal of Statistical Software, 11(10), 1–17 | |
| dc.source.bibliographicCitation | Zeileis, A., & Hothorn, T. (2002).Diagnostic checking in regression relationships. R News, 2(3), 7–10 | |
| dc.source.instname | instname:Universidad del Rosario | |
| dc.source.reponame | reponame:Repositorio Institucional EdocUR | |
| dc.subject | Producción Primaria Bruta | |
| dc.subject | Intercambio Neto del Ecosistema | |
| dc.subject | Respiración Comunitaria | |
| dc.subject | Fuego | |
| dc.subject | Ganadería | |
| dc.subject | Humedales | |
| dc.subject | Intercambio de CO₂ entre la tierra y la atmósfera | |
| dc.subject.keyword | Gross Primary Production | |
| dc.subject.keyword | Net Ecosystem Exchange | |
| dc.subject.keyword | Community Respiration | |
| dc.subject.keyword | Fire | |
| dc.subject.keyword | Livestock | |
| dc.subject.keyword | Exchange of CO₂ between the land and the atmosphere | |
| dc.title | Flujos de dióxido de carbono (CO2) en suelos con distintos usos en sabanas inundables de la Orinoquia | |
| dc.title.TranslatedTitle | Carbon dioxide (CO2) fluxes in soils with different uses in floodplains of the Orinoquia | |
| dc.type | bachelorThesis | |
| dc.type.hasVersion | info:eu-repo/semantics/acceptedVersion | |
| dc.type.spa | Tesis | |
| local.department.report | Escuela de Ciencias e Ingeniería | |
| local.regiones | Bogotá |
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