Plant input does not exert stronger control on topsoil carbon persistence than climate in alpine grasslands
Donghai Wu1, Xiangtao Xu1, Haicheng Zhang2
1Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, USA.
Ecology Letters
|September 12, 2021
Abstract:
Chen et al. (Ecology Letters, 2021, 24, 1018) concluded that plant input governs topsoil carbon persistence in alpine grasslands. We demonstrated that the excluded direct effect of precipitation on topsoil Δ14 C in their analysis was significant and strong. Our results provide an alternative viewpoint on the drivers of soil carbon turnover.
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