Equilibrium in soil respiration across a climosequence indicates its resilience to climate change in a glaciated valley, western Himalaya.

ABSTRACT: Soil respiration (SR), a natural phenomenon, emits ten times more CO₂ from land than anthropogenic sources. It is predicted that climate warming would increase SR in most ecosystems and give rise to positive feedback. 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. Accounting for the variabilities, we use a climosequence in Himalaya with a temperature gradient of ~ 2.1 °C to understand the variations in the response of SR and its temperature sensitivity to climate change. 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

SUBMITTER: Tiwari P 

PROVIDER: S-EPMC8630114 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature