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Variations in atmospheric CO 2 are linked with climate-induced changes in SR, and even a tiny shift in the latter may have a profound impact on the global carbon balance 4. This emission is approximately tenfold higher than fossil fuel combustion 1 and accounts for about ~ 90 PtG C emissions per year 2, 3. Soil respiration (SR) is the process of CO 2 emission from soil that originates mainly from microbial and root respiration. We introduce an equilibrium mechanism in this study which indicates the resilient nature of SR to climate change and will aid in enhancing the accuracy of climate change impact projections. The findings suggest that as the climate warms in this region, the temperature sensitivity of SR reduces drastically due to moisture reduction, limiting any change in SR and soil organic carbon to rising temperature. Finally, soil organic carbon shows similarities at all the elevations, indicating a net-zero CO 2 flux across the climosequence. Additionally, moisture reduction towards lower elevation weakens the temperature-SR relationship. Results indicate an equilibrium in SR ranging from 1.92 to 2.42 µmol m −2 s −1 across an elevation gradient (3300–3900 m) despite its increased sensitivity to temperature (Q 10) from 0.47 to 4.97. Accounting for the variabilities, we use a climosequence in Himalaya with a temperature gradient of ~ 2.1 ☌ to understand the variations in the response of SR and its temperature sensitivity to climate change.
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However, there are uncertainties associated with this prediction primarily due to variability in the relationship of SR with its two significant drivers, soil temperature and moisture. It is predicted that climate warming would increase SR in most ecosystems and give rise to positive feedback. Soil respiration (SR), a natural phenomenon, emits ten times more CO 2 from land than anthropogenic sources.