Emergent Climatic Controls on Soil Carbon Turnover and Its Variability in Warm Climates Academic Article uri icon


  • AbstractClimate plays a critical role in altering soil carbon (C) turnover and longterm soil C storage by regulating water availability and temperature, and in turn biological activity. However, a systematic analysis of how key climatic factors shape the global patterns of soil C turnover is still lacking. Using global observationbased data sets and a transit time theory, here we show thatexcluding croplands and cold regionssoil C turnover time (TO) and its variability are strongly related to ecosystem aridity through a power law scaling. According to such a relation, soil C turnover is faster but also more variable in wetter regions, suggesting more complex C cycling processes. The observed scaling of TO and its coefficient of variation with aridity underlines the fundamental controls of climate on soil C turnover and may help reconcile soil C models with empirical observations for improved projection of soil C dynamics under climate change.

published proceedings


altmetric score

  • 11.25

author list (cited authors)

  • Huang, H., Wu, J., & Calabrese, S.

citation count

  • 0

complete list of authors

  • Huang, Heng||Wu, Jin||Calabrese, Salvatore

publication date

  • November 2023