Table 1 Investigated soil properties and their abbreviations

From: Effects of Quercus rubra L. on soil properties and humus forms in 50-year-old and 80-year-old forest stands of Lombardy plain

Soil propertiesUnitAbbreviation
Organic carbon stock of OL organic horizonkg m−2OCOL
Organic carbon stock of OF organic horizonkg m−2OCOF
Organic carbon stock of OH organic horizonkg m−2OCOH
 OCOL +  OCOF+ OCOHkg m−2OCO
Soil organic carbon content of the 0–10 cm mineral soil layer%SOC1
Soil organic carbon content of the 10–30 cm or 10–35 cm mineral soil layer%SOC2
Soil organic carbon content of the 30–60 cm or 35–60 cm mineral soil layer%SOC3
Soil organic carbon stock of the 0–30 cm or 0–35 cm mineral soil layerkg m−2SOCstock
C:N ratio of the 0–10 cm mineral layer CN1
C:N ratio of the 10–30 cm or 10–35 cm mineral layer CN2
C:N ratio of the 30–60 cm or 35–60 cm mineral layer CN3
pH in water of the 0–10 cm mineral layer pHw1
pH in water of the 10–30 cm or 10–35 cm mineral layers pHw2
pH in water of the 30–60 cm or 35–60 cm mineral layers pHw3
Available phosphorus content of the 0–10 cm mineral layermg kg−1Pav
Humus index Humind
Bulk density of the 0–10 cm mineral layerg cm–3BD1
Bulk density of the 10–30 cm or 10–35 cm mineral layersg cm−3BD2