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 Δ¹⁴C in their analysis was significant and strong. Our results provide an alternative viewpoint on the drivers of soil carbon turnover.

中文翻译：

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植物输入对表土碳持久性的控制并不比高寒草原气候强

陈等人。( Ecology Letters , 2021, 24 , 1018) 得出的结论是，植物输入控制着高寒草原表土碳的持久性。我们证明了在他们的分析中排除的降水对表土 Δ ¹⁴ C 的直接影响是显着和强烈的。我们的结果为土壤碳周转的驱动因素提供了另一种观点。