Bagasse and bagasse compost from agave tequilero in contrasting soils: 3. Soil respiration and greenhouse gas emissions
The study of soil respiration (microbial CO2 emission ) due to the incorporation of organic waste (RO) from agroindustry (bagasse and bagasse compost), allows estimating the environmental effect in relation to the CO2 emission due to the mineralization of the carbon during its decomposition process,...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | México |
| Institución: | UNIVERSIDAD DE SONORA |
| Repositorio: | Biotecnia |
| Idioma: | español |
| OAI Identifier: | oai:oai.biotecnia.unison.mx:article/2178 |
| Acceso en línea: | https://biotecnia.unison.mx/index.php/biotecnia/article/view/2178 |
| Access Level: | acceso abierto |
| Palabra clave: | residuos orgánicos tasa de mineralización cinética del carbono organic waste mineralization rate carbon kinetics |
| Sumario: | The study of soil respiration (microbial CO2 emission ) due to the incorporation of organic waste (RO) from agroindustry (bagasse and bagasse compost), allows estimating the environmental effect in relation to the CO2 emission due to the mineralization of the carbon during its decomposition process, which must be considered from the point of view of climate change. Therefore, the objective was to evaluate the dynamics of CO2 emission due to the mineralization of four lignocellulosic materials, incorporated in soils of different textures. Using the alkaline respiration technique, CO2 respiration was quantified in Regosol and Luvisol by incorporating two bagasse (TBD and TBA) and their composts (TCD and TCA) for 30 days under controlled humidity and temperature conditions. The TBD and TBA treatments increased microbiological activity with higher emissions; while the TCD and TCA treatments increased the soil organic C (COS) content with lower emissions. The CO2 emission was related to the mineralization of the RO and this in turn to its chemical composition and its resistance to decomposition; in addition, the dynamics of the emissions were different by type of material and by type of soil. The incorporation of bagasse type RO is an option to increase soil microbial activity, but with greater greenhouse gas (GHG) emissions; while compost RO generates an increase in the capture of COS and, therefore, a greater store of C and a lower emission of CO2. |
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