Ciclo del Nitrógeno en América Latina: Impulsores, Impactos y Vulnerabilidades

The project aims to create a regional understanding of the nitrogen cycle in Latin America by measuring biological nitrogen fixation, atmospheric deposition, and the impacts of land-use changes. Initial findings include high nitrogen pollution in Venezuelan rivers, low biological nitrogen fixation in Chilean forests affected by copper mining, and the influence of urban and industrial areas on NOx concentrations in São Paulo. The initiative seeks to provide guidelines for policymakers to manage nitrogen and minimize environmental degradation.

• In Mexico, measurements of ∂15-N abundance indicate that 30-50% of nitrogen in native plants is biologically fixed, with standing vegetation containing 70-100 kg N /ha and a turnover of 20-30 kg N /ha/yr.
• Biological Nitrogen Fixation (BNF) in Chilean forests is extremely low and is further inhibited by contaminants from copper mining.
• Nitrogen deposition in Northern Argentina is approximately 8 kg N /ha/y. In São Paulo State, maps of air contaminants show high NOx concentrations driven by the city and industrial areas, while rural animal production sites contribute NH3.
• Analysis of river data from Venezuela reveals that some rivers are polluted with nitrogen concentrations 60 times higher than background levels in the Amazon and Orinoco.
• The project is analyzing the expansion of soy production in Bolivia to assess potential future impacts including water contamination, soil degradation, and increased fertilizer use.

APA

Ometto, J. P. H., Forti, M. C., Pérez, C., Stein, A., Jaramillo, V. J., Perez, T., Austin, A., Ascarrunz, N., Pinho, P., Pérez, A. L. S., Bonilla, A., Salgado, B., Silva, C. M. D. S., Flores, C. G., Carnelos, D., Salazar, E., Neto, E. S., Ibarra, E. C., Pacheco, F. S., ... Diaz, S. (2024). Ciclo del Nitrógeno en América Latina: Impulsores, Impactos y Vulnerabilidades. Inter-American Institute for Global Change Research. https://iai.int/en/ciclo-del-nitrogeno-en-america-latina-impulsores-impactos-y-vulnerabilidades-crn-3005/

Chicago

Ometto, Jean Pierre H.B., Maria Cristina Forti, Cecilia Pérez, Ariel Stein, Víctor J. Jaramillo, Tibisay Perez, Amy Austin, et al. Ciclo del Nitrógeno en América Latina: Impulsores, Impactos y Vulnerabilidades. Inter-American Institute for Global Change Research, 2024. https://iai.int/en/ciclo-del-nitrogeno-en-america-latina-impulsores-impactos-y-vulnerabilidades-crn-3005/.

Wikipedia

{{cite report |last1=Ometto |first1=Jean Pierre H.B. |last2=Forti |first2=Maria Cristina |last3=Pérez |first3=Cecilia |last4=Stein |first4=Ariel |last5=Jaramillo |first5=Víctor J. |last6=Perez |first6=Tibisay |last7=Austin |first7=Amy |last8=Ascarrunz |first8=Nataly |last9=Pinho |first9=Patricia |display-authors=etal |title=Ciclo del Nitrógeno en América Latina: Impulsores, Impactos y Vulnerabilidades |publisher=Inter-American Institute for Global Change Research |date=22 September 2024 |url=https://iai.int/en/ciclo-del-nitrogeno-en-america-latina-impulsores-impactos-y-vulnerabilidades-crn-3005/ |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{ometto2024ciclo, author = {Ometto, Jean Pierre H.B. and Forti, Maria Cristina and Pérez, Cecilia and Stein, Ariel and Jaramillo, Víctor J. and Perez, Tibisay and Austin, Amy and Ascarrunz, Nataly and Pinho, Patricia and Pérez, Ana Lidia Sandoval and Bonilla, Andre and Salgado, Beatriz and Silva, Cássia Monalisa dos Santos and Flores, Conrado Guzmán and Carnelos, Danilo and Salazar, Edixon and Neto, Eráclito Sousa and Ibarra, Estefany Chávez and Pacheco, Felipe Siqueira and Licona, Juan Carlos and Ribeiro, Kelly and Gómez, Laura Castañeda and Gomes, Luciene and Malfaia, Marcio and Almeida, Mariana and Muñoz, Natalia and Hernandez, Nohelis and Dulhoste, Raphael and Bazaes, Rodrigo Aguilera and Crispin, Stephane Palma and Diaz, Stephanie}, title = {{Ciclo del Nitrógeno en América Latina: Impulsores, Impactos y Vulnerabilidades}}, institution = {Inter-American Institute for Global Change Research}, year = {2024}, month = sep, url = {https://iai.int/en/ciclo-del-nitrogeno-en-america-latina-impulsores-impactos-y-vulnerabilidades-crn-3005/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }