MOTTLES site network consist of 17 sites selected from Level II of ICP Forest.

​

ICP Forests monitors forest condition in Europe at two monitoring intensity levels:

​

• the Level I monitoring is based on around 6000 observation plots on a systematic transnational grid of 16 x 16 km throughout Europe to provide a periodic overview on the spatial and temporal variation of forest condition in relation to anthropogenic and natural stress factors (in particular air pollution)

​

• the Level II intensive monitoring comprises around 500 permanent plots in selected forest ecosystems with the aim to gain a better understanding of the cause-effect relationships between the condition of forest ecosystems and the stress factors.

 

MOTTLES sites were selected among the partner countries according with the target species and the biogeographical areas: 4 sites in France, 9 sites in Italy and 4 sites in Romania.