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 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

ICP Forests Strategy 2016-2023 available online

The ICP Forests community has adopted the new Strategy of ICP Forests 2016-2023 at its last Task Force Meeting in Luxembourg in May 2016. This document defines the mission, aims, and current features of the programme, provides a vision for the future of ICP Forests, and proposes actions to be taken. It is available here and under Publications/ICP Forests Others.

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

Posted by Alexa Michel on September 9, 2016 at 12:08

ICP Forests 2016 Technical Report available online

We are happy to inform you about the online publication of the

2016 Technical Report of ICP Forests

You can download the report from the ICP Forests website

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

Posted by Alexa Michel on September 9, 2016 at 11:15

19th Needle/Leaf Interlaboratory Comparison Test 2016/17

Dear colleagues,

registration for this test ended in July 2016 - till now 45 laboratories participate (see timetable). For this test three spruce and one pine needle sample were prepared. The results for the elements S, N. P, K, Ca, Mg, C, Zn, Mn, Fe, Cu, Pb, Cd and B will be evaluated. Other elements can be analyzed – especially results of heavy metals like As, Co, Cr, Hg, Mo, Ni, Tl and V are most welcome. Deadline for the online result submission is 2017-01-01. There is no possibility to enlarge this deadline.

Please, keep in mind that all participating laboratories within the ICP-FORESTS monitoring program have to participate in the Interlaboratory Comparison Test too, otherwise no monitoring data submission is possible!

If you want to participate in this Interlaboratory Comparison Test please contact me per email.

All the best

Alfred Fürst

Posted by Alfred FÜRST on July 28, 2016 at 12:30

5th ICP Forests Scientific Conference - Book of Abstracts now available online

With the 5th ICP Forests Scientific Conference in Luxembourg on May 11-12, 2016 approaching soon, I am happy to announce that the Book of Abstracts is now available online.

With best wishes
Alexa Michel

Posted by Alexa Michel on May 2, 2016 at 14:52


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

Caroline Greiser is now a member of ICP Forests
Sep 19
Giovanni Iacopetti is now a member of ICP Forests
Sep 16
Alexa Michel posted an event

PCG Meeting of ICP Forests at Federal Ministry of Food and Agriculture

November 2, 2016 at 1pm to November 3, 2016 at 1pm
We are looking forward to welcome all members and guests of the Programme Co-ordinating Group (PCG) of ICP Forests in Berlin in November.More information on the event will follow soon.See More
Sep 15
Eric Thurm is now a member of ICP Forests
Sep 13
Alexa Michel posted blog posts
Sep 9
Sıtkı ÖZTÜRK posted photos
Sep 8
Rossella Guerrieri is now a member of ICP Forests
Sep 8
Heinz LICK is now a member of ICP Forests
Aug 31

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