DISTRIBUTION PATTERN AND DYNAMICS OF PINUS ARMANDI POPULATION IN THE QINLING MOUNTAINS Factor analysis of mineral elements distribution of flue-cured tobacco Distribution of Sugar Content in Corn Stalk Epidermal Characters of Leaves in Thermopsis and Thier Biological Significances Spatial heterogeneity of grassland pattern under grazing and forage condition Spatial heterogeneity of the psammophytic half shrub community in Mu Us Sandland Optimization of the Regeneration Protocol of Rosa canina cv.‘Edelcaninas’Meristem Effects of topography on the diversity and distribution pattern of ground plants in karst montane forests in Southwest Guangxi, China. Spatial heterogeneity of Caragana microphylla shrub communities in the Otindag Sandland Variation of Quantitative Characters on Pigeonpea Populations of Local Cultivars in Yunnan Province Interspecific Relationships among the Dominant Weeds Species of Tobacco Field in Guizhou Province On the Small Scale Spatial Heterogeneity of Soil Moisture, Carbon and Nitrogen in Stipa Communities of the Inner Mongolia Plateau Study on Characteristic Differences of Catalpa bungei Clones in vitro Culture Research on Restoration of Warm Temperate Degraded Ecosystem in Dongling Shan Area Study on spatial heterogeneity of soil respiration in Taiyuan Basin STUDY ON CORRELATIVE RELATIONS BETWEEN AIR-SEEDING EFFECT AND SITE FACTOR FOR PINUS T ABULAEFORMIS Gene cloning and bioinformatics analysis of new gene for chlorogenic acid biosynthesis of Lonicera hypoglauca