Forest study reveals impact of climate on soil carbon emissions
Soil respiration in Pinus tabulaeformis forests in the Qinling Mountains was studied to understand how CO2 release varies with location, soil temperature, and moisture. Measurements taken over a year showed that soil respiration rates differ between growing and dormant periods, with higher rates during the day. Soil respiration was higher in the growing season compared to the dormant season. The temperature of the soil was found to be a significant factor affecting soil respiration, with rates increasing above 9.0℃. Overall, the study highlights the importance of considering temporal and spatial variations in soil respiration to accurately estimate carbon balance in forest ecosystems.