Effect of Sampling Scale on Spatial Variability of Forest Soil Nutrient in Typical Watershed with Miyun Chaoguan West Watershed for example Study on the Methods of Constructing Chinese Cabbage Core Germplasm Based on the Morphological Data Fractal features of scenic spatial construction in Wuyishan World Natural and Culture Heritage Studies on the Constructing of Pepper Core Collection Based on Phenotypic Data Determination of the characteristics of soil heavy metal spatial variability with two soil sampling scales Spatial distribution and scale effect of species diversity of secondary forests in montane region of eastern Liaoning Province, China. Study on the relationship between α diversity of plant community and environment on Dinghushan Effect of sampling scale on the relationship between species diversity and productivity in subalpine meadows Study on the Methods of Constructing Chinese Cabbage Core Germplasm Based on the Morphological Data Analysis of Spatial Pattern and Spatial Association of Pinus tabulaeformis Populations at Different Developmental Stages STUDY ON PLANT COMMUNITY DIVERSITY IN DON LINGSHAN MOUNTAIN,BEIJING CHINA Ⅹ β DIVERSITY AND FRACTAL ANALYSIS ON TRANSECT ON DIFFERENT SCALES Effects of Road on Spatial Distribution Patterns of Stand and Biomass of Pine and Broad-leaved Mixed Forest in Dinghushan Nature Reserve Spatial pattern of the trees in a natural Pinus tabulaeformis forest in Taiyue Mountain