Título

Soil CO2 efflux fluctuates in three different annual seasons in a semideciduous tropical forest in Yucatan, Mexico

El flujo de CO2 del suelo fluctúa en tres temporadas del año en un bosque tropical semideciduo de Yucatán, México

Autor

Fernando Arellano-Martín

JUAN MANUEL DUPUY RADA

ROBERTH ARMANDO US SANTAMARIA

José Luis Andrade Torres

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Identificador alterno

doi: https://doi.org/10.28940/terra.v40i0.968

Referencia de datos

datasetDOI/https://doi.org/10.28940/terra.v40i0.968

Materias

EARLY DRY SEASON - (AUTORES) SOIL TEMPERATURE - (AUTORES) SOIL VOLUMETRIC WATER CONTENT - (AUTORES) TROPICAL DRY FOREST - (AUTORES) BIOLOGÍA Y QUÍMICA - (CTI) CIENCIAS DE LA VIDA - (CTI) BIOLOGÍA VEGETAL (BOTÁNICA) - (CTI) ECOLOGÍA VEGETAL - (CTI) ECOLOGÍA VEGETAL - (CTI)

Resumen o descripción

Tropical forest soils store a third of the global terrestrial carbon and control carbon dioxide (CO2) terrestrial effluxes to the atmosphere produced by root and microbial respiration. Soil CO2 efflux varies in time and space and is known to be strongly influenced by soil temperature and water content. However, little is known about the influence of seasonality on soil CO2 efflux, especially in tropical dry forests. This study evaluated soil CO2 efflux, soil temperature, and soil volumetric water content in a semideciduous tropical forest of the Yucatan Peninsula under two sites (flat areas close to and far from hills), and three seasons: dry, wet, and early dry (a transition between the rainy and dry seasons) throughout a year. Additionally, six 24-h periods of soil CO2 efflux were measured within these three seasons. The mean annual soil CO2 efflux was 4±2.2 μmol CO2 m-2 s-1, like the mean soil CO2 efflux during the early dry season. In all seasons, soil CO2 efflux increased linearly with soil moisture, which explained 45% of the spatial-temporal variation of soil CO2 efflux. Soil CO2 efflux was higher close to than far from hills in some months. The daily variation of soil CO2 efflux was less important than its spatial and seasonal variation likely due to small diel variations in temperature. Transition seasons are common in many tropical dry forests, and they should be taken into consideration to have a better understanding of the annual soil CO2 efflux, especially under future climate-change scenarios. © 2022 Mexican Society of Soil Science. All Rights Reserved.

Fecha de publicación

2022

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://cicy.repositorioinstitucional.mx/jspui/handle/1003/2846

Formato

application/pdf

Fuente

Terra Latinoamericana, 40, 2022.

Idioma

Inglés

Sugerencia de citación

Arellano-Martín, F., Dupuy, J. M., Us-Santamaría, R., and Andrade, J. L. (2022). Soil CO2 ef flu x fluct uates i n th ree different an nual seasons i n a sem ideciduous tropical forest in Yucatan, Mexico. Terra Latinoamericana, 40, 1-12. e968. https://doi.org/10.28940/terra.v40i0.968

Repositorio Orígen

Repositorio Institucional CICY

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