What does Peter Wohlleben refer to when he writes about "His Forest" in the nonfiction book, The Hidden Life of Trees?

Wohlleben shares a lot about the beech forest in Hümmel that he has been managing for more than 20 years. He has transitioned it from a lumber production to a conservation area. In order to fund the conservation, he founded a burial ground in the forest, where urns are buried under living trees. Wohlleben eliminated the use of heavy harvester vehicles and pesticides, and the forest has since won several awards for its ecological exemplarity.