Articles | Volume 20, issue 12
https://doi.org/10.5194/bg-20-2369-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-2369-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Jun 2023
Research article |
| 22 Jun 2023
| 22 Jun 2023
Dynamics of short-term ecosystem carbon fluxes induced by precipitation events in a semiarid grassland
Josué Delgado-Balbuena
CORRESPONDING AUTHOR
Centro Nacional de Investigación Disciplinaria Agricultura Familiar, INIFAP, km 8.5 Carr. Ojuelos – Lagos de Moreno, 47563, Ojuelos de Jalisco, Jal., Mexico
Henry W. Loescher
Battelle, National Ecological Observatory Network (NEON), Boulder, CO 80301, USA
Institute of Alpine and Arctic Research (INSTAAR), University of Colorado, Boulder, CO 80301, USA
Carlos A. Aguirre-Gutiérrez
Centro Nacional de Investigación Disciplinaria Agricultura Familiar, INIFAP, km 8.5 Carr. Ojuelos – Lagos de Moreno, 47563, Ojuelos de Jalisco, Jal., Mexico
Teresa Alfaro-Reyna
Centro Nacional de Investigación Disciplinaria Agricultura Familiar, INIFAP, km 8.5 Carr. Ojuelos – Lagos de Moreno, 47563, Ojuelos de Jalisco, Jal., Mexico
Luis F. Pineda-Martínez
Unidad Académica de Ciencias Sociales, Universidad Autónoma de Zacatecas, 108 Calzada Universidad, 98066 Zacatecas, Zacatecas, Mexico
Rodrigo Vargas
Department of Plant and Soil Sciences, University of Delaware, Newark, DE 19716, USA
Tulio Arredondo
Division de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa de San José 2055, Lomas 4ta, 78216 San Luís Potosí, S.L.P., Mexico
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Short summary
In the semiarid grassland, an increase in soil moisture at shallow depths instantly enhances carbon release through respiration. In contrast, deeper soil water controls plant carbon uptake but with a delay of several days. Previous soil conditions, biological activity, and the size and timing of precipitation are factors that determine the amount of carbon released into the atmosphere. Thus, future changes in precipitation patterns could convert ecosystems from carbon sinks to carbon sources.
In the semiarid grassland, an increase in soil moisture at shallow depths instantly enhances...
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