Ciclo del nitrógeno en América Latina: impulsores, impactos y vulnerabilidades

The project establishes a Nitrogen, Society, and Environment Network (Nnet) to study the impacts of human activity on the nitrogen cycle across various Latin American ecosystems. It integrates empirical measurements of biological nitrogen fixation, atmospheric deposition, and fertilizer use with regional modeling to inform policy and environmental management.

• In Mexico, measurements of ∂15-N abundance indicate that between 30% and 50% of the nitrogen found in native plants is biologically fixed, with established vegetation containing 70-100 kg N /ha and an annual litterfall rotation of 20-30 kg N /ha/year.
• Biological nitrogen fixation (BNF) in Chilean forests was found to be extremely low, with further reductions caused by copper mining pollution affecting the nitrogen cycle.
• Nitrogen deposition in northern Argentina is approximately 8 kg N /ha/year. In the state of São Paulo, Brazil, air pollutant maps show high concentrations of NOx driven by the city and adjacent industrial areas, while rural and livestock establishments contribute to NH3 levels.
• Analysis of nitrogen data from Venezuelan rivers indicates contamination levels 60 times higher than baseline concentrations found in the Amazonas and Orinoco rivers.
• In Bolivia, the project is analyzing the expansion of soy production to determine future potential impacts regarding increased fertilizer use, soil degradation, and water pollution, including the crop's water footprint.

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/es/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/es/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/es/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/es/ciclo-del-nitrogeno-en-america-latina-impulsores-impactos-y-vulnerabilidades-crn-3005/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }