Abstract: This article studied seven typical forest types(demonstration areas)in the Maoer Mountainous Region. Taking biodiversity as the criterion, using principal component analysis and the CCA methods, this study analyzed the relationship between the restoration condition and environmental factors. Results showed that harvesting method is the dominant factor affecting the restoration of biodiversity. Among the sites studied, demonstration area Ⅵ (Betula platyphylla-Fraxinus mandshurica mixed forest) showed the best restoration results where Fraxinus mandshurica and Pinus sylvestris var. mongolica belt-shaped mixed forest is developed, followed by demonstration area Ⅶ (Betula platyphylla-Maackia amurensis mixed forest). The study results provide supports for the management decision of the optimized biodiversity restoration techniques in the region.

Key words: biodiversity, forest type, restoration result