Litter decomposition rate constants across the global temperature gradient

The responses of organic matter decomposition to temperature rise is
increasingly important topic. Most of the previous studies measured
temperature dependence of soil respiration under laboratory incubation,
while we analyzed the temperature dependence of organic matter
decomposition under field conditions.  To identify the factors
regulating litter decomposition rate constants and their temperature
sensitivity, we compiled the data of site information [Country, District,
Vegetation or land use, Plant type, Mean annual air temperature (ºC), Mean
annual precipitation (mm y-1), Soil type (Soil Taxonomy), Soil pH, and
Decomposition rate constant (Table S1), Organic horizon C stock (Mg C
ha-1), Litterfall C input (Mg C ha-1 y-1), Litter turnover (y) (Table S2).
These parameters allow us to compare decomposition rate constants and
provide temperature dependence indicators of organic matter decomposition
(activation energy and Q10) across the global temperature gradient.