Characteristics and spatial heterogeneity of Tamarix ramosissima Nebkhas at Desert-Oasis Ecotone Ecologicaladaptability of photosynthesis and water use for Tamarix ramosissima in the southern periphery of Gurbantunggut Desert, Xinjiang Niche and Spatial Distribution Pattern Analysis of the Main Populations of the Tarim Desert-Oasis Ecotone Spatial variation of soil nutrients of Tamarix ramosissima nebkhas and interdune areas in a desert-oasis ecotone Soil stoichiometry characteristics of Haloxylon ammodendron with different plantation age in the desert-oasis ecotone, north China Photosynthetic characteristics of three different life-form plants in the desert-oasis ecotone of Keriya River Basin Spatial variability of soil moisture and vegetation in desert-oasis ecotone in the middle reaches of Heihe River Basion Ecophysiological responses and adaptation of Tamarix ramosissima to changes in groundwater depth in the Heihe river basin Study of the photosynthesis characteristics and physical signs of four plants at the desert-oasis ecotone