白榆(Ulmus pumila L)也称为家榆、榆树,是我国榆属24种中重要的一个种。它生长快、材质好、分布广、适应性强、种源充足、育苗容易、造林成活率高,是我国常见的一种速生型树种。它是平原地区“四旁”绿化和营造用材林、防护林及轻盐碱地造林的主要树种。近年来由外地引进的白榆,在 Ulmus pumila L., also known as Ulmus and Ulmus, is an important species in 24 species of Ulmus in China. It is fast growing, good material, wide distribution, strong adaptability, sufficient provenance, easy nursery and high afforestation survival rate. It is a fast-growing tree species commonly found in China. It is the plains area “green” and create timber forests, shelterbelts and light saline alkali afforestation of the main tree species. In recent years imported from the field of elm, in