Welcome to ICP Forests

– the International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests operating under the UNECE Convention on Long-range Transboundary Air Pollution (CLRTAP) –

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

ICP Forests was launched in 1985 under the Convention on Long-range Transboundary Air Pollution (CLRTAP) of the United Nations Economic Commission for Europe (UNECE) in response to wide public and political concern over extensive forest damage that had been observed in Europe in the beginning of the 1980s. 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 and beyond to gain insight into the geographic and temporal variations in forest condition while the Level II intensive monitoring comprises around 500 plots in selected forest ecosystems with the aim to clarify cause-effect relationships. At present 42 countries participate in ICP Forests.

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Blog Posts

Website clean-up over the summer

Dear website discussion group leaders,

I would very much appreciate it if you took some time over the summer to look at your groups on this website and delete the ones that are not actively used anymore OR initiate the discussion once more.

Thanks so much!

Posted by Alexa Michel on July 4, 2017 at 11:19

Wanted: Your pictures on the ICP Forests website

Dear members of the ICP Forests website community,

I have uploaded a few pictures from this year's Expert Panel Meeting in Zagreb - thanks Nenad! - and Scientific Conference and Task Force Meeting in Bucharest - thanks Ovidiu!

Please remember to upload pictures to the website from any ICP Forests meetings, field work, forest ecosystems that you would like to share. I also always look for pictures for ICP Forests reports and this is a great source. Thank you!

With best wishes
Alexa Michel
Programme Co-ordinating Centre of ICP Forests

Posted by Alexa Michel on July 4, 2017 at 11:09

Thank-you letter from ICP Forests lead country to former Chairman of ICP Forests Mr Michael Köhl

On behalf of the ICP Forests lead country and all members of ICP Forests, Mr Clemens Neumann, Head of the Directorate 5 at the German Federal Ministry of Food and Agriculture, expresses his sincerest thanks to former Chairman of ICP Forests, Mr Michael Köhl, for more than ten years of work for ICP Forests. For the complete thank-you letter please follow this link.

Posted by Alexa Michel on April 7, 2017 at 14:26

Thank you Michael for charing ICP Forests 2005 to 2017

Dear Michael

On behalf of the Programme Co-ordinating Centre (PCC) of ICP Forests at the Thünen Institute of Forest Ecosystems I would like to thank you for successfully administrating ICP Forests since 2005. Over the years a constant flow of internal and external strategic decisions had to be taken along with official duties at annual meetings of the Task Force of ICP Forests, the Programme Co-ordinating Group and other bodies and ad-hoc groups of ICP Forests. Your effective and clear manner was helpful in many complex situations, which an advanced monitoring programme such as ICP Forests had to face over the years.…


Posted by Walter Seidling on February 13, 2017 at 12:30


What is the Integrated Pest Management (IPM) or Integrated Pest Control (IPC), what is its role in protecting our Environment?

I would like to ask on IPM and how benefits us in protecting the environment?Continue

Started by Mohamed Dadamouny Dec 19, 2016.

Upcoming workshop: Environmental change and forest ectomycorrhizal fungi. 8-9 October 2015

Dear all,I would like to announce that we will organise a workshop on 8-9 October 2015 at the Royal Botanic Gardens Kew in London, with the topic environmental change and forest ectomycorrhizal…Continue

Started by Sietse van der linde Mar 30, 2015.

Soil Sample Laboratory Test 1 Reply

I would like to know about Soil Sample Laboratory Test, are we going to have it in 2014 year. Best regards, Radovan Nevenic, NFC Serbia.Continue

Started by Radovan Nevenic. Last reply by Nathalie Cools May 7, 2014.


Latest Activity

Elena Gottardini commented on Marcus Schaub's event '13th UNECE/ICP Forests EP meeting & Intercalibration Course of the EP on Ambient Air Quality'
"Dear all, The registration deadline has been postponed to 31 July 2017. Looking forward to see you in Trento, Elena"
Jul 14
Alexa Michel posted blog posts
Jul 4
Alexa Michel posted events
Jul 4
Alexa Michel posted photos
Jul 3
Alexa Michel posted photos
Jul 3
Rock Ouimet is now a member of ICP Forests
Jun 30
Profile IconHuseyin Yurtseven, Michael Sprintsin and Jinyan Yang joined ICP Forests
Jun 22
Alexa Michel posted an event

25th anniversary of the RENECOFOR Network at --

October 11, 2017 to October 13, 2017
You’re kindly invited to the conference organized from October 11 to 13, 2017, by the ONF (French National Forest Office), to celebrate the 25th anniversary of the RENECOFOR Network (French part of the ICP Forests Level II network).This conference will be the opportunity to attend informative presentations reviewing the 25 years of knowledge acquired through the Network’s forest ecosystem monitoring programme. It is addressed to the ONF foresters involved in the network, to partners, but also…See More
Jun 20

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