The effects of sheep urine on growing characteristics of different life form plants in a Chinese steppe grassland Distribution Characteristics of the Root System of the Stipa bungeana Trin. Community in Yunwu Mountain Effect of the Extracts of Rhizosphere Soil from Stipa bungeana on the Germination of Stipa bungeana and Its Dominant Species Photosynthesis characteristics and productivity of Stipa bungeana in loess plateau Changes of soil chemical properties after different burning years in typical steppe of Yunwun Mountains Relation between climate variables and the aboveground biomass of Thymus mongolicus-Stipa bungeana community in steppe of Ordos Plateau, Inner Mongolia Drought Resistance of Different Stipa bungeana Populations in the Semi-arid Region of Loess Plateau Genetic Diversity of Stipa bungeana Trin. Populations in Shaanxi Analyzed by ISSR Markers Study on the Diurnal Variations of Photosynthetic Characteristics and Water Use Efficiency of Stipa bungeana Trin.Under Drought Stress Community Characteristics of an Artificially Planted Caragana Korshinskii Kom. Grassland Study of the Relationship Between Aboveground Biomass of the Artemisia phaerocephala Stipa bungeana Community and Climate Variables at Sandy Grassland in Erdos Plateau Comparative studies on above ground numerical characteristics and their relationships with soil moisture of two kinds of natural grassland in loess hilly region Phosphorous distribution of plant-soil system in a stipa bungeana slope land in the agro-pastoral transitional zone