COST Action E25 – European Network for long-term Forest Ecosystem and Landscape Research Scientific Issues Related to Sustainable Forest Management in an Ecosystem and Landscape Perspective Convening Lead Authors: Anders Mårell 1 and Olivier Laroussinie 1 Principal Lead Authors: Norbert Kräuchi (Switzerland), Giorgio Matteucci (Italy), Folke Andersson (Sweden) and Ernst Leitgeb (Austria) Contributing Authors: Klaus Katzensteiner (Austria), Freddy Devillez (Belgium), Christine Farcy (Belgium), Ivan Raev (Bulgaria), Emil Klimo (Czech Republic), Jiri Kulhavy (Czech Republic), Bohumir Lomsky (Czech Republic), Per Gundersen (Denmark), Hardi Tullus (Estonia), Timo Penttilä (Finland), Reinhard Hüttl (Germany), Bernd Uwe Schneider (Germany), Gregor Chatziphilippidis (Greece), Panagiotis Michopoulos (Greece), Arnlin Oladottir (Iceland), Ted Farrell (Ireland), Andrea Cutini (Italy), Aigars Indriksons (Latvia), Remigijus Ozolincius (Lithuania), Hendrik Herman Bartelink (Netheralnds), Ad van Hees (Netherlands), Dan Aamlid (Norway), Kazimierez Rykowski (Poland), Ion Barbu (Romania), David Hladnik (Slovenia), Ricardo Alia (Spain), Isabel Canellas (Spain), Björn Hånell (Sweden), Keith James Kirby (United Kingdom) Technical Report No. 1 Working Group 1: Scope of the action and guidelines for national inventories of research sites 1 Groupement d'Intérêt Public Ecosystèmes Forestiers (GIP ECOFOR), 19 av. du Maine, F-75732 Paris cedex 15, France. Tel. +33 1 45 49 88 37, Fax. +33 1 45 49 88 39. ENFORS homepage: http://ifff.boku.ac.at/enfors. Directorate-General for Research 2002 EUR XXXXX