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

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

Dr Marco Ferretti new Chairman of ICP Forests

The Programme Co-ordinating Centre of ICP Forests is very happy to announce that Dr Marco Ferretti from the Swiss Federal Institute for Forest, Snow and Landscape Research WSL has been appointed as new Chairman of ICP Forests by the German Ministry of Food and Agriculture. Marco has been very active in this programme for many years and we are very happy about this decision.

Nomination letter by the lead country's Federal Ministry of Food and Agriculture

Posted by Alexa Michel on February 7, 2017 at 13:06

Next ICP Forests Expert Panel Meeting - Event information and registration

Dear members of the ICP Forests community,

On behalf of the local organizers, Ms Tamara Jakovljević and Mr Nenad Potočić, please find more detailed information on the upcoming ICP Forests Expert Panel Meeting in Zagreb, 27-30 March 2017, and the registration form on the ICP Forests website.

If you need any help with the registration…


Posted by Alexa Michel on February 6, 2017 at 13:09

6th ICP Forests Scientific Conference, 2nd call

Dear colleagues, dear friends.

The second call for the 6th Scientific Conference is available under the item 'Events'. Besides general Information, guidelines for abstract prepartation are given. Please, consider a contribution from your field of activity.

Best regards and see you in Bucharest in May.


Posted by Walter Seidling on January 17, 2017 at 8:57


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

Alexa Michel posted an event

International Photo-Intercalibration Course 2017 at n/a

June 15, 2017 to August 31, 2017
On behalf of the German NFC, the German National Crown Condition section kindly invites you to take part in theInternational Photo-Intercalibration Course 2017.Please refer to the invitation letter and the Photo ICC reports from …See More
Alexa Michel posted an event

International Cross-Comparison Course Crown Condition (Central Europe), Czech Republic at Buchlov, Southern Moravia, Czech Republic

June 6, 2017 to June 9, 2017
Dear colleagues,The Forestry and Game Management Research Institute, Jíloviště, Czech Republic is pleased to welcome you to the ICC 2017 for Central Europe.The course will be situated on South Moravia. In this region we can use for such purposes a favorable transport accessibility, extensive forest stands of all basic European tree species as spruce, pine, beech, oak and birch. We are looking forward to meeting you again in our country.For more information please visit:…See More
Alexa Michel updated an event

ICP Forests Combined Expert Panel Meeting, Zagreb at Hotel Panorama

March 27, 2017 to March 31, 2017
The ICP Forests Expert Panels on Foliar and Litterfall, Soil and Soil Solution, Deposition, Crown Condition, Ambient Air Quality, and Quality Assurance and Quality Control in Laboratories meet in Zagreb to discuss recent developments in their field and to plan future ICP Forests activities.…See More
Mar 21
Radoslaw Puchalka is now a member of ICP Forests
Mar 20
Alexa Michel posted an event

Training session on plant productivity and indexes (LAI) at CNR Research Area RM-1, Monterotondo (Rome)

May 8, 2017 to May 12, 2017
Second Announcement eLTER H2020, with the cooperation of ICP Forests, is pleased to announce a training session contributing to Ecosystem Integrity monitoring at LTER sites.The training will be focused on: Plant productivity and indexes as a proxy for basic ecosystem featuresWe are aiming at a participation of approximately 20 trainees. Interested people performing activities in research, monitoring, experimental or observation sites, preferably with the responsibility to later implement the…See More
Mar 16
Henning Andreae joined Karin Hansen's group

Comparison ICP Forests - EMEP deposition

This group discusses three studies that aim on comparing ICP Forests and EMEP deposition estimates with slightly different purposes. Since they all aim at comparisons between ICP Forests and EMEP we joined them in the same group.The objectives of the three studies are:Comparison of measured ICP Forests bulk and throughfall deposition with modelled EMEP (50 x 50 km grid model and if agreed also the 7 x 7 km grid) for the years 2009-11 (Lead: Aldo Marchetto)Comparison of temporal trend of EMEP…See More
Mar 13
Profile IconMurat Gulsoy, Choi, Chulhyun and Svetla Valeva Bratanova-Doncheva joined ICP Forests
Mar 13
Andreas Schmitz joined Richard Fischer's group

Working Group on Soil Solution

Internal page of the ICP Forests WG on soil solution sampling, analysis and evaluationSee More
Mar 10

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