Survival Analysis of Populus pruinosa Population in the Upper Reaches of Tarim River A study on the spatial distribution and quantative characteristic of Populus euphratica and Populis pruinosa fruits Gas Exchange Characteristics of Desert Dominant Plants and Relationships between Them and Environmental Factors in Tarim Basin A study on the chemical composition of Populus euphratica and Populus pruinosa seeds A study on the spatial distribution and quantitive characteristic of Populus euphratica and Populus pruinosa flowers Comparative Studies on the Chemical Composition and Vigour of Pollens of Populus euphratica and Populus pruinosa Life history characteristics and spatial distribution of Populus pruinosa population at the upper reaches of Tarim River Effects of Soil Water Stress on Light Response Curves of Photosynthesis of Populus euphratica and Populus pruinosa Interspecific differentiation and gene flow between two desert poplars inferred from six vacuolar Na+/H+ exchanger loci Salt-tolerance of Populus euphratica and P. pruinosa Seeds during Germination Study on the Flowering Phenology in Populus euphratica and Populus pruinosa Characteristics of Stomatal Conductance of Populus pruinosa and the Quantitative Simulation Morphological and Anatomical Features of Root Sucker Propagation of Populus pruinosa Investigation on the characteristics of biology and ecology of Populus euphratica and Populus pruinosa The photosynthetic and water physiological characteristics of Populus euphratica and Populus pruinosa in the upper reaches of Tarim River