Stock Photo - 27 April 2022, Thuringia, Pfiffelbach: An employee of the Forest Research Center takes a forest soil sample from a soil profile. The condition of forest soils and their changes are subjected to a systematic inventory at around 2,000 points throughout Germany every 15 years; Thuringia accounts for 100 of these inventory points. Photo: Michael Reichel/dpa. - Pfiffelbach/Thuringia/Germany

Stock Photo: 27 April 2022, Thuringia, Pfiffelbach: An employee of the Forest Research Center takes a forest soil sample from a soil profile.

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