The relationship between vegetation characteristics and hydro-thermic factors along the Ulanbattar-Xilinhot Grassland Transect of the Mongolian Plateau A CLADISTIC TAXONOMY STUDY ON THE GENUS HEDYSARUM IN MONGOLIAN PLATEAU Study on the evolutionary system of Spiraea genus in the Mongolian Plateau Spatiotemporal patterns and driving factors of grassland fire on Mongolian Plateau. Surface energy exchanges in grassland ecosystems along a precipitation gradient Genetic Relationships among Some Astragalus Species from Mongolian Plateau Based on ISSR Markers