Comment on “Climate legacies drive global soil carbon stocks in terrestrial ecosystems” | Zendy

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Comment on “Climate legacies drive global soil carbon stocks in terrestrial ecosystems”

Author(s) -

Jonathan Sanderman

Publication year - 2018

Publication title -

science advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.928

H-Index - 146

ISSN - 2375-2548

DOI - 10.1126/sciadv.1701482

Subject(s) - soil carbon , pedogenesis , environmental science , radiocarbon dating , climate change , carbon fibers , terrestrial ecosystem , ecosystem , paleoclimatology , earth science , soil organic matter , carbon cycle , soil science , physical geography , ecology , soil water , geology , geography , oceanography , paleontology , biology , materials science , composite number , composite material

Delgado-Baquerizo . (, 12 April 2017, e1602008) use statistical correlations to infer that paleoclimate (6000 to 22,000 years ago) is a more important driver of current soil organic carbon stocks than the current-day climate. On the other hand, a wealth of radiocarbon measurements indicates that the organic carbon in most topsoils is only a few decades to perhaps a few centuries old. These seemingly incongruous results can perhaps be reconciled by considering that the long-term pedogenic development of a soil strongly influences the physiochemical properties, which lead to stabilization of new carbon entering that soil regardless of current climate.

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