Abstract
In Taiwan, artificial forest with approximately 420,000 ha in area is an important forest ecosystem. In order to confirm the ecosystem management concept, an appropriate thinning practice should be applied to the plantation management system. But, the relevant data regarding the thinning implementation, the impact on biodiversity and forest function, and endemic vegetation regeneration and restoration are still scanty in hand. In order to build up the local scale scientific data, in this project, thinning plots with alternative thinning strategy are set up in the compartments 74, 75, and 76 in Lan-Da Working Unit of Nan-Tou Forest District. In plots, issues related to meteorologic, microclimate, timber growth, ground vegetation, and biomass are monitored and measured periodically. The relevant data collected can be used as a reference for the plantation sustainable management.