Study on Fractal Features of Soil Microaggregates during Different Restoration Stages in the Loess Hilly Region Diversity and Distribution of Vascular Epiphytes in Different Restoration Stages of Monsoonal Broad-leaved Evergreen Forest Communities Foliar nutrient content and resorption efficiency of Pinus massoniana in the subtropical red soil erosion region Sprouting characteristic in restoration ecosystems of monsoon evergreen broad- leaved forest in south-central of Yunnan Province Spatial Distribution of Dominant Species in Monsoon Evergreen Broad-leaved Forest of Different Restoration Stages