Guidelines & Tools ICP Forests Manual Published 2025 Share SHARE Facebook share Twitter LinkedIn Copy URL Email Download Download icp-forests-manual en Added on: 16 June, 2026 Breadcrumb Home Resource Library ICP Forests Manual The ICP Forests Monitoring Manual documents the harmonized methods for sampling and analysis as adopted by the participating countries of ICP Forests.Part I: Objectives, strategy and implementation of ICP ForestsPart II: Basic design principles for the ICP Forests monitoring networksPart III: Quality assurance within the ICP Forests monitoring programmePart IV: Visual assessment of crown condition and damaging agentsPart V: Tree growth Level IIPart VI: Phenological observationsPart VII: 1. Biological diversity - Assessment of ground vegetationPart VII: 2. Biological diversity - Assessment of epiphytic lichen diversityPart VIII: Assessment of ozone injuryPart IX: Meteorological measurementsPart X: Sampling and analysis of soil - Annex IPart X: Sampling and analysis of soil - Annex IIPart XI: Soil solution collection and analysisPart XII: Sampling and analysis of needles and leavesPart XIII: Sampling and analysis of litterfallPart XIV: Sampling and analysis of depositionPart XV: Monitoring of air qualityPart XVI: Quality assurance and control in laboratoriesPart XVII: Leaf area measurements Related partners United Nations Economic Commission for Europe (UNECE)