Analysis on clinical trealment in hypertension by traditional Chinese medicine for 10 years in Beijing Study on Storm Runoff in Small Scrub Watersheds on Xishan Mountain in Beijing A Study on Soil Water Dynamics of Forest Land in Jiulong Hill, Beijing Estimation model for plant leaf chlorophyll content based on the spectral index content Species Diversity of Floor Bryophytes in Different Vegetations in Baihua Mountain National Nature Reserve,Beijing,China Relationships between terrestrial bryophytes and eco-environmental factors in Baihua Mountain National Nature Reserve in Beijing