The dataset contains the following column headers:
Date- the date the measurement was collected
File Name - the unique file identifier from the Licor IRGA
Visit - numerical sequence describing the order in which the groups of measurements were taken (eg 1 = first month, 2 = second month, etc)
site - site code (KBL1 = koombooloomba forest, KBL2 = Koombooloomba savanna, DCR = Davies Creek savanna, KCR = Kauri Creek forest, CTC = Cape Tribulation forest)
ecosystem - the site grouping (forest or savanna)
vegetation - where the measurement was taken within the site (tree = adjacent to tree, grass = inter-tree spaces)
treatment - the treatment applied to the measurement ( 1 = with litter, 2 = without litter, 3 = 5cm depth, 4= 30cm depth)
type - surface (the measurement was taken at the soil surface - includes treatments 1 and 2) or depth (if soil was removed, includes treatments 3 and 4)
Vol H2O - volumetric soil moisture as measured by the ThetaProbe
chamber.temp = air temperature within the licor chamber, measured by the licor
Flux - the soil respiration flux measured in micromoles per metre squared per second
bulk.density - the bulk density of the soil. These values have no temporal value, ie samples were bulked for tree and grass locations at each site and were taken at the beginning of the project.
distance to tree - the distance of the nearest tree to the measurement location
comments - any additional information relating to the measurement. soil collars were frequently buried by wildlife or disturbed and needed to be reinstalled (these measurements should be interpreted with caution as they are unlikely to reflect ambient conditions).