Progress in the Study of Psammophyte- Haloxylon

The achievements in the 50-year's research on the distribution characteristics, physiological characteristics, evaluation on site-matching condition of plantation, density and water balance of Haloxylon population, the techniques of Haloxylon regeneration and its benefits, were summarized. With the progress in sand control engineering and eco-environment construction in western China, selecting suitable plant species became urgent problems to be solved in sand control engineering. It was necessary to strengthen the research on seedling culture, fast-propagation technique and the population stability of Haloxylon, which will benefit the change of species lack in desertified region, increased the diversity of xerophilous species and improve the stability of deteriorated ecosystem.