BC3 Journal Article “Soil heterotrophic CO 2 emissions from tropical high-elevation ecosystems (Páramos) and their sensitivity to temperature and moisture fluctuations”


Go to external source

Curiel Yuste, J.C., Heres, A.M., Ojeda, G., Paz, A.,Pizano, C.,Pizano, D., García-Angulo, D., Lasso, E. 2017. Soil heterotrophic CO 2 emissions from tropical high-elevation ecosystems (Páramos) and their sensitivity to temperature and moisture fluctuations. Soil Biology and Biochemistry. 110. 8-11. DOI (10.1016/j.soilbio.2017.02.016).

Abstract

Increasing temperatures and changes in the intensity and frequency of precipitations may impact the ability of tropical high-elevation Andean ecosystems (Páramos) to store and retain carbon (C). We, therefore, examined how warming and fluctuations in soil moisture could influence soil CO2 emissions from heterotrophic respiration (RH, the result of microbial respiration), of two Páramos of contrasting climatic regimes within their area of distribution. We here show high sensitivity of both RH and Q10 under warmer and fluctuating moisture conditions. Together with the high rates of C-normalized RH compared to other soil C-rich ecosystems from higher latitudes (2 μmol gC−1 h−1 versus 0,4 μmol gC−1 h−1, respectively) our results evidenced how soil heterotrophic-derived CO2 emissions could potentially increase under expected climate scenarios, eventually altering the capacity of soil Páramos to sequester C.

Comments are closed.





María de Maeztu Excellence Unit 2023-2026 Ref. CEX2021-001201-M, funded by MCIN/AEI /10.13039/501100011033

©2008 BC3 Basque Centre for Climate Change.


We use cookies of our own and of third parties to improve our services and to be able to offer you, by means of web browsing analysis, the best options. If you continue browsing, we assume that you agree to their use. For further information, please click here.

ACEPTAR
Aviso de cookies