As part of a collaborative project to investigate human impacts on Quercus suber L. (cork oak) forests,
five research groups from countries in Europe and North Africa undertook a survey of soil quality
(physical properties, potentially toxic elements) at sites in NW Tunisia and NW Sardinia. All groups
performed the analysis of soil samples after agreeing prescribed methodologies to ensure
harmonisation and the production of a robust and reliable data set. The data produced were compared
using basic statistical methods and revealed strong positive correlation despite minor operational
variation. The data indicates that inter and intra laboratory variability differed from parameter to
parameter and that good agreement was obtained where methodology was common. Collaborative
research introduced the need for common communication plans and exchange of information not
normally supplied in analytical reporting.
- Quercus suber L.
- chemical analysis
- cork oak
- forest soil quality
- potentially toxic elements