Comparative study concerning the effects of rare species treatments on RDA ordination Content and Ratio of Carbon and Nitrogen of Three Types of Warm Temperate Deciduous Broadleaf Forests in Dongling Mountain Net Nitrogen Mineralization and Nitrification in One Pure Pine (Pinus tabulaeformis) Forest and One Pine-Oak Mixed Forest in Dongling Mountainous Region Differences of saikosaponin contents in Bupleurum chinense from habitats in Dongling mountain & Wuling mountain of Beijing Seed Demography of Quercus liaotungensisin Dongling Mountain Region Leaf Demography of Quercus liaotungensis in Dongling Mountain DCA Ordination, Quantitative Classification and Environmental Interpretation of Plant Communities in Dongling Mountain Study on Life-Form Spectrum of Plant Community in Dongling Mountain ON THE CHARACTERISTICS OF THE FLORA OF DONQLING MOUNTAIN AREA AND ITS RELATIONSHIP WITH A NUMBER OF OTHER MOUNTAINOUS FLORAS IN CHINA Distribution Patterns and Their Seasonal Changes of Carabus Beetles in Dongling Mountain Region Near Beijing Characteristics of precipitation and forest stemflow of Dongling Mountainous area Pattern of Larix principis-rupprechtii Plantation and Its Environmental Interpretation in Dongling Mountain LIFE HISTORY CHARACTERISTICS AND SPATIAL DISTRIBUTION OF THE BETULA PLATYPHYLL A POPULATION IN THE DONGLING MOUNTAIN REGION, BEIJING, CHINA FLORA AND ECOLOGICAL CHARACTERISTICS OF FERNS IN DONGLING MOUNTAIN AREA Effects of altitude on soil microbial community in Quercus liaotungensis forest. Evaluation of soil and water conservation capacity of different forest types in Dongling Mountain Analysis of Species Diversity of the Forest Vegetation in Dongling Mountain, Beijing