Division I General remarks

Monitoring of litterfall in accordance with Article 6(c) shall be carried out on optional basis on Level II plots from the year 2005 onwards. Where litterfall monitoring is carried out the following provisions shall be applicable.

The following provisions are based on technical recommendations of the ad hoc Working group on Litterfall of the UNECE International Cooperative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (ICP Forests).