Community Composition and Structure of Badagongshan (BDGS) Forest Dynamic Plot in a Mid-subtropical Mountain Evergreen and Deciduous Broad-leaved Mixed Forest, Central China Species diversity and population dynamics of plants on deciduous broad leaved forest slash at Wuling Mountain Differences of saikosaponin contents in Bupleurum chinense from habitats in Dongling mountain & Wuling mountain of Beijing Interspecific Association of Medicinal Herbs in Ziwuling Region Comparison of the Attributes of Natural Forests and Plantations in Ziwuling Mountain Organic carbon storage in the vegetation biomass in secondary forest region of Ziwuling Mountain Soil microbial biomass nitrogen and carbon, water soluble nitrogen and carbon under different arbors forests on the Loess Plateau Direction effects on plant diversity, earthworm diversity, and soil organic matter of natural secondary forest in dawuling mountains STUDY ON THE FERNS AND FERN ALLIES OF THE WULING MOUNTAINS Genetic Diversity of Huperzia serrata (Huperziaceae) in Wuling Mountains Area Detected by AFLP Species Diversities of Major Communities in Malan Forest Region of the Loess Plateau RESEARCH ON THE TRACHEOPHYTA FLORA IN NATURE RESERVE OF WULIN MOUNTAIN