After the field practice forest was established, trees were cut down mainly around the headwaters of the Yura-gawa River, where a forest tramline was opened before the war, then Japanese cedar trees were planted at the site afterwards.
演習林の開設後は、戦前は森林軌道が開通した由良川源流域を中心に伐採が行われ、伐採跡にはスギの造林が行われた。