Welcome to ICP Forests

A programme aiming at a comprehensive compilation of information on the condition of forests in Europe and beyond

The International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (ICP Forests) was launched in 1985 under the Convention on Long-range Transboundary Air Pollution (Air Convention, formerly CLRTAP) of the United Nations Economic Commission for Europe (UNECE).

ICP Forests monitors forest condition at two monitoring intensity levels:

The Level I monitoring is based on 5852 observation plots (as at 2019) on a systematic transnational grid of 16 x 16 km throughout Europe and beyond to gain insight into the geographic and temporal variations in forest condition.

The Level II intensive monitoring comprises 623 plots (as at 2018) in selected forest ecosystems with the aim to clarify cause-effect relationships.

At present 42 countries in Europe and beyond participate in ICP Forests.

Blog Posts

ICP Forests Brief No 3 available in Serbian language

The ICP Forests Brief No 3 titled Ozone concentrations are decreasing but exposure remains high in European forests is now available in Serbian: Концентрације озона се смањују али је изложеност и даље висока у шумама Европе

Please note that ICP Forests Briefs can be translated into any language. If you are interested in making them available in your language, please let us know.

Posted by Alexa Michel on April 15, 2021 at 12:44

Joint Expert Panel Meeting, 8-12 March 2021 - Thank you!

We would like to thank all Expert Panel members for their valuable participation in this years Joint EP meeting and we are especially grateful to the EP/WG chairs for the organization and chairing of their respective meeting.

With 233 registered participants joining online from 29 European countries and discussing current issues and developments in nine Expert Panels and Working Groups, this week has been very valuable for the further development of the ICP Forests programme.

Thank you very much for your continuous support and efforts!

Posted by Alexa Michel on March 23, 2021 at 16:00

New report: Heavy metals in forest floors and topsoils of ICP Forests Level I plots

We are happy to announce the publication of a new INBO/ICP Forests report on:

Heavy metals in forest floors and topsoils of ICP Forests Level I plots: Based on the combined Forest Soil Condition Database - Level I (FSCDB.LI)

by Tine Bommarez, Nathalie Cools and Bruno De Vos from the Research Institute for Nature and Forest (INBO) and ICP Forests Soil Co-ordinating Centre (FSCC) in Belgium.

High resolution PDF (86 MB), Low resolution PDF (4…


Posted by Alexa Michel on February 11, 2021 at 10:30

FOREST EUROPE: State of Europe’s Forests 2020 report published

The State of Europe’s Forests 2020 report was published by the FOREST EUROPE Liaison Unit Bratislava.

The report provides comprehensive information on the status and trends in forests and forestry in Europe, based on the pan-European criteria for sustainable forest management.

It is a result of co-operation with numerous experts, governments, as well as international organizations, including ICP Forests.

The State of Europe's Forests 2020 report, as well as its Summary for Policy Makers, are now available at .

Posted by Alexa Michel on January 20, 2021 at 11:00


Soil spectroscopy

Dear colleagues,as topicality is rising on application of soil spectroscopy for routine analysis by utilizing own created or shared spectral libraries, I am interested if someone could share their knowledge on instrumentation choice? Could someone…Continue

Started by Aldis Butlers Dec 19, 2019.

Choosing brands for some instruments 1 Reply

Dear colleagues,It is planned to purchase a new mill, Kjeldahl Steam Distillation System for N analysis and combined system to analyze pH, EC and alkalinity for water samples for my lab. 1. There are two mills in our lab. One of them is Retsch ZM200…Continue

Started by Rabia GUNHAN. Last reply by Robert Menegotto Apr 30, 2018.


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