Afforestation methods in mixed forests with coniferous and broad-leaved species
1999
Koshika, K. (Hokkaido Univ., Sapporo (Japan)) | Nomura, T.
Mixed forests with coniferous and broad-leaved species are physiologically and ecologically superior to other types of forests. Furthermore, these forests are highly regarded in terms of land conservation, nature conservation, landscape, recreation and biodiversity preservation, etc. Afforestation methods in mixed forests with coniferous and broad-leaved species in Hokkaido were classified according to past cases to examine the technical challenges of each afforestation method and discuss ideal methods for afforestation. There is a variety of afforestation methods, such as natural regeneration and a wide variety of artificial generation techniques. Such afforestation methods include not only mixed planting of coniferous and broad-leaved species, but also use of broad-leaved species raised through natural regeneration in artificial coniferous forests, the promotion of natural generation through ground treatment, and diverse management methods in natural broad-leaved forests. A major task today is to change artificial coniferous forests into mixed coniferous and broad-leaved forests depending on natural environmental condition. Furthermore, creating diverse stand compositions is required in consideration of afforestation objectives and the natural environment, among other factors. Such stand composition includes not only single tree mixture but also group mixture, multi-storied forests and mosaic stands with coniferous and broad-leaved tree species
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