A revolutionary technical development to revitalize Japanese forestry: — A proposal for a portable tree felling manipulator to address specific properties of Japanese forestry —@@@— 日本林業の特異性を克服する伐倒マニピュレータの提案 —

The specific properties of Japanese forestry will be explained (Fig. 1). Compared to the United States or Europe, one reason that makes Japanese forestry difficult is the Japanese natural environment. Forestry is done in the “forests” in Europe, while forestry is done in the “mountains” in Japan. This is a fundamental difference. In the following sections, the uniqueness of Japanese forestry will be spelled out one by one to extract the research topics.