Soil structure was characterised by laboratory determination of macropore volume and air
permeability on undisturbed soil cores.
The soil environment was described by repeated field
measurements of volumetric soil water content and O2 concentration in soil air.
Soil microbial biomass
(Cmic) and basal respiration were samples and potential denitrification was
determined in undisturbed soil cores.
Samplings for both physical and biological analysis were repeated
on several occasions.
nalysis confirmed the expected impairment
respiration were samples potential denitrification