RT Journal Article
T1 The effect of extreme temperatures on soil organic matter decomposition from Atlantic oak forest ecosystems
A1 Barros Pena, Nieves
A1 Rodríguez Añón, José Antonio
A1 Proupín Castiñeiras, Jorge
A1 Pérez Cruzado, César
K1 Earth surface processes
K1 Soil science
K1 Global change
K1 Biogeoscience
AB This work designs a heatwave with a calorimeter to analyze the response of soils from oak forest ecosystems to increasing temperature from 20°C to 60°C and to cooling from 60°C to 20°C. Calorimetry measures the heat rate of the soil organic matter decomposition and the response to increasing and decreasing temperatures directly. It was applied to soil samples representing different soil horizons with organic matter at different degree of decomposition given by their heat of combustion, calculated by differential scanning calorimetry. Results showed temperature-dependent decomposition rates from 20°C to 40°C or 50°C typical for enzymatic activity. From 40°C to 60°C, changes in the rates are less predictable. Data analysis during cooling showed that all samples suffered losses of their enzymatic capacity and that only those with the heat of combustion values close to that of carbohydrates resisted the heat wave.
PB Elsevier
YR 2021
FD 2021
LK https://hdl.handle.net/10347/40660
UL https://hdl.handle.net/10347/40660
LA eng
NO Barros Pena, N., Rodríguez Añon, J.A., Proupín Castiñeiras, J. & Pérez Cruzado, C. (2021). The effect of extreme temperatures on soil organic matter decomposition from Atlantic oak forest ecosystems. iScience, 24(12), 1-16. https://doi.org/10.1016/j.isci.2021.103527
NO This research is funded by the Spanish Ministery of Science and Innovation Project PID2020-119204RB-C22
DS Minerva
RD 24 abr 2026