Interannual Variation and Control Factors of Soil Respiration in Xeric Shrubland and Agricultural Sites from the Chihuahuan Desert, Mexico

Gabriela Guillen-Cruz, Emmanuel F. Campuzano, René Juárez-Altamirano, Karla Liliana López-García, Roberto Torres-Arreola and Dulce Flores-Rentería ()
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Gabriela Guillen-Cruz: CINVESTAV Unidad Saltillo, Grupo de Sustentabilidad de los Recursos Naturales y Energía, Av. Industria Metalúrgica 1062, Parque Industrial Ramos Arizpe, Ramos Arizpe C.P. 25900, Coahuila, Mexico
Emmanuel F. Campuzano: CINVESTAV Unidad Saltillo, Grupo de Sustentabilidad de los Recursos Naturales y Energía, Av. Industria Metalúrgica 1062, Parque Industrial Ramos Arizpe, Ramos Arizpe C.P. 25900, Coahuila, Mexico
René Juárez-Altamirano: CINVESTAV Unidad Saltillo, Grupo de Sustentabilidad de los Recursos Naturales y Energía, Av. Industria Metalúrgica 1062, Parque Industrial Ramos Arizpe, Ramos Arizpe C.P. 25900, Coahuila, Mexico
Karla Liliana López-García: CINVESTAV Unidad Saltillo, Grupo de Sustentabilidad de los Recursos Naturales y Energía, Av. Industria Metalúrgica 1062, Parque Industrial Ramos Arizpe, Ramos Arizpe C.P. 25900, Coahuila, Mexico
Roberto Torres-Arreola: CINVESTAV Unidad Saltillo, Grupo de Sustentabilidad de los Recursos Naturales y Energía, Av. Industria Metalúrgica 1062, Parque Industrial Ramos Arizpe, Ramos Arizpe C.P. 25900, Coahuila, Mexico
Dulce Flores-Rentería: CONACYT-CINVESTAV Unidad Saltillo, Grupo de Sustentabilidad de los Recursos Naturales y Energía, Av. Industria Metalúrgica 1062, Parque Industrial Ramos Arizpe, Ramos Arizpe C.P. 25900, Coahuila, Mexico

Land, 2023, vol. 12, issue 11, 1-16

Abstract: Arid and semi-arid ecosystems dominate the R S variability due to the multiple changing factors that control it. Consequently, any variation, in addition to climate change and land use change, impacts the concentration of CO 2 in the atmosphere. Here, the effect of the interannual variation and the controlling factors of R S in native xeric shrublands and agricultural systems is investigated. This study was conducted in four sites per condition for two years (2019 to 2020), where R S and the soil properties were measured. The R S presented a higher variation in the xeric shrubland. The agricultural plots showed the highest R S (0.33 g CO 2 m −2 hr −1 ) compared to the xeric shrubland (0.12 g CO 2 m −2 hr −1 ). The soil water content was the main controlling variable for R S in both land uses. However, soil temperature affected R S only in agricultural plots. The variation in the R S under different land uses confirms that changes in the soil and environmental conditions (i.e., season) control the R S . In addition, if current management practices are maintained in agricultural sites and under a temperature increase scenario, a significant increase in the R S rate is expected.

Keywords: arid ecosystems; climate change; microbial activity; land use change; soil organic matter; soil temperature; soil water content (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2023
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