N2O flux measurements.

stint: Sampling event. 1 (2–4 July 2019), 2 (16–19 September 2019), 3 (1–3 June 2020), 4 (31 July to 6 August 2020), 5 (and 21–23 September 2020).

block: block identity.

plot: C (control), CH (charcoal, i.e., biochar), MX (soil mixing), MCH (biochar + soil mixing).

subplot: subplot identity.

n2o_flux: flux of N2O from the forest floor, in nanomol per square meter per second.

airT: air temperature outside of the chamber, in degree centigrades.

soilT: soil temperature, in degree centigrades.

soilMC: average soil moisture content, in % dry weight.