Stock Photo - 21 April 2021, Brandenburg, Eberswalde: Harry Zippel (l) and Jochen Ernst, both forest surveyors at the Brandenburg State Forestry Office, survey a site in the forest for the Federal Forest Inventory. The Federal Forest Inventory (BWI), which takes place every ten years, officially began on the same day. Representatives of the State Forestry Enterprise and the responsible State Competence Centre Forest Eberswald (LFE) explained at the beginning the procedure of the big counting and measuring. In addition to the current state of the forest, the Federal Forest Inventory will also show how the forest has developed since the last Federal Forest Inventory in 2012. Photo: Patrick Pleul/dpa-Zentralbild/dpa. - Eberswalde/Brandenburg/Germany