Application of Landform-based Desert Vegetation-Climate Model in Xinjiang Uygur Autonomous Region The Vertical Climatic Habitat Zones in Mountainous Regions in South-western Hubei Province Compararive Studies on Biomass and Productivity of Pinus tabulaeformis Plantations in Different Climatic Zones in Shaanxi Province The succession characteristics and its driving mechanism of plant community in karst region, Southwest China