Effects of Temperatures on Seed Germination Characteristics of Alpine Plant Stipa purpurea (Poaceae)* Main Characteristics of Littledalea racemosa Alpine Steppe in Qinghai-Xizang(Tiber) Plateau Landscape pattern analysis of alpine steppe based on airborne hyperspectral imagery in Maduo county, Qinghai province Soil C/N distribution characteristics of alpine steppe ecosystem in Qinhai- Tibetan Plateau Effects of Grazing Systems on the Community Characteristics of Alpine Steppe in Qinghai Lake Region Belowground biomass in Tibetan grasslands and its environmental control factors Effect of areas of land used for engineering construction on features of restorable plant communities in the alpine steppe regions of the Qinghai-Tibet Plateau The changes of soil organic carbon and carbon management index in alpine steppe CARBON CONTENTS AND ITS VERTICAL DISTRIBUTION IN ALPINE GRASSLANDS IN BAYINBULAK, MIDDLE STRETCH OF THE TIANSHAN MOUTAINS OF XINJIANG Numerical analysis of inter-specific relationships in Alpine steppe community in Bayanbulak Species diversity of arbuscular mycorrhizal fungi of Stipa L. in alpine grassland in northern Tibet in China The characteristics of soil and vegetation of degenerated alpine steppe in the Yellow River Source Region CH4,N2O and CO2 Fluxes and Correlation with Environmental Factors of Alpine Steppe Grassland in Nam Co Region of Tibetan Plateau The Nitrogen:Phosphorus Stoichiometry of Different Plant Functional groups for Dominant Species of Typical Steppes in China