Impacto de enmiendas orgánicas con adición de biocarbón sobre la calidad del suelo, las emisiones de gases de efecto invernadero y huella de carbono en suelos contrastantes.
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Date
2026
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Publisher
Universidad de Concepción
Abstract
La agricultura intensiva ha convertido los suelos en una fuente de gases de efecto invernadero (GEI). En este contexto, la generación de biocarbón a partir de residuos agrícolas ha surgido como una estrategia sostenible para secuestrar carbono (C) y recuperar suelos degradados. Estudios recientes indican que, al combinarlo con enmiendas orgánicas, se potencian sus beneficios para la fertilidad y la productividad del suelo, ofreciendo una alternativa sostenible de reemplazo de los fertilizantes sintéticos, potenciando sistemas productivos basados en economía circular. Sin embargo, es necesario evaluar su impacto ambiental para considerar su implementación a gran escala. Este proyecto de investigación propone evaluar el impacto del biocarbón sobre enmiendas orgánicas procedentes de diferentes procesos de estabilización biológica (vermicompost y bokashi) y lombrices anécicas en suelos contrastantes. Se evaluarán cambios en la nutrición de los suelos, actividad biológica y emisiones de GEI. La información generada permitirá determinar los niveles de almacenamiento de carbono (C) y realizar un análisis de ciclo de vida (ACV) para determinar la huella de C asociada a cada enmienda. Este proyecto permitirá generar conocimiento para la implementación de estas prácticas a escala real y sentar bases para investigaciones en agricultura climáticamente inteligente.
Intensive agriculture has turned soil into a source of greenhouse gases (GHG). In this context, the generation of biochar from agricultural waste has emerged as a sustainable strategy to sequester carbon (C) and recover degraded soils. Recent studies indicate that when combined with organic amendments, its benefits for soil fertility and productivity are enhanced, offering a sustainable alternative to replace synthetic fertilizers and promoting productive systems based on a circular economy. However, it is necessary to evaluate its environmental impact to consider its implementation on a large scale. This research project proposes to evaluate the impact of biochar on organic amendments from different stabilization biological processes (vermicompost and bokashi) and anecic earthworms in contrasting soils. Changes in soil nutrition, biological activity, and GHG emissions will be assessed. The information generated will allow for the determination of carbon (C) storage levels and a Life Cycle Assessment (LCA) to determine the C footprint associated with each amendment. This project will generate knowledge to enable the implementation of these practices at a real scale and lay the groundwork for research in climate-smart agriculture.
Intensive agriculture has turned soil into a source of greenhouse gases (GHG). In this context, the generation of biochar from agricultural waste has emerged as a sustainable strategy to sequester carbon (C) and recover degraded soils. Recent studies indicate that when combined with organic amendments, its benefits for soil fertility and productivity are enhanced, offering a sustainable alternative to replace synthetic fertilizers and promoting productive systems based on a circular economy. However, it is necessary to evaluate its environmental impact to consider its implementation on a large scale. This research project proposes to evaluate the impact of biochar on organic amendments from different stabilization biological processes (vermicompost and bokashi) and anecic earthworms in contrasting soils. Changes in soil nutrition, biological activity, and GHG emissions will be assessed. The information generated will allow for the determination of carbon (C) storage levels and a Life Cycle Assessment (LCA) to determine the C footprint associated with each amendment. This project will generate knowledge to enable the implementation of these practices at a real scale and lay the groundwork for research in climate-smart agriculture.
Description
Tesis presentada para optar al título de Ingeniero/a Agrónomo/a.
Keywords
Lombrices de tierra, Compost, Fertilidad del suelo, Secuestración de carbono, Gases efecto invernadero