Pan-European monitoring of local forest fragmentation : algorithm theoretical basis document (ATBD)

This document describes the design process, definitions, and algorithmic implementation for a pan-European assessment of forest fragmentation. This study is a preceding presentation of the indicator 4.7 in the State of Europe's Forests 2025 report, published by FOREST EUROPE. Forest cover is derived from the Copernicus High Resolution Forest Type dataset for the year 2021 at a spatial resolution of 10 meters. Forest fragmentation is assessed within a local neighbourhood of 500 hectare. Spatially explicit maps and statistical summaries are derived for 44 reporting units: the entire map coverage, European regions, the EU27, and the EEA38 countries.