Multi-criterion evaluation of forest ecosystem services in Yodo River basin: Present and projected future status by forest management
2007
Ooba, M.(Osaka Univ., Suita (Japan)) | Machimura, T. | Inoue, Y. | Fuji, T. | Masumoto, A.
A variety of forest ecosystem services managed with several forest treatment strategies in Yodo River basin, Japan was evaluated in terms of biomass production, environmental conservation, and forestry economy in past (1975), present (2005), and future (2035). A GIS based forest database was created by collecting and storing the forest inventory information of governments over the basin. A newly developed forest biomass model, which calculates biomass growth, timber yield and ecosystem carbon accumulation of pure stands based on yield tables considering the effects of site quality class and thinning, was combined with the database. Biodiversity indices, atmospheric carbon dioxide sequestration and the economic budget of forestry were predicted using the model. Different forest treatment strategies targeting the succession of current treatment rules (F0), conservation of land and water (F1), conservation of biodiversity (F2), and enhancement of CO2 absorption (F3) were proposed and compared. Simulated biomass and ecosystem carbon accumulation highly increased in 2035, although CO2 absorption decreased to about half of the level in 2005 by F0 management because of increased aged stands. Three special purpose strategies (Fl, F2, and F3) achieved their own aims in the model simulations.
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