Respond of Populus euphratica Oliv.Phenology to Climate Warming in the Oasis of Lower Reaches of Heihe River from 1960 to 2010 Research of relation about soil water contain in zone of acration and vegetation growth status at oasis of riverside in lower reaches of Heihe River Hydrological Response of Populus euphratica Olve.Radial Growth in Ejinaa Banner, Inner Mongolia The growth state of Populus euphratica Oliv. and its leaf ecological characteristics in the lower reaches of Heihe River Soil water and salinity in response to water deliveries and the relationship with plant growth at the lower reaches of Heihe River, Northwestern China Point pattern analysis of Populus euphratica population in the lower reaches of Heihe River.