榆树在世界上分布很广,从-温带到亚热带都可见到,常生长于河堤、村旁、路旁、山麓和沙地。我国北方就有不少用榆树命名的村镇,如陕西的榆林、黑龙江的榆树屯等,可见在历史上榆树就是我国常见的乡土树种。榆树是个很好的树种,然而在许多地方苗圃里不见榆树苗,林地上不见榆树林,为此大有呼吁多种榆树的必要。 Elm is widely distributed in the world, from - temperate to subtropical can be seen, often growing in the embankments, villages, roadsides, foothills and sand. In northern China, there are many villages and towns named after the elm trees, such as Yulin in Shaanxi province and Yushuun in Heilongjiang province. It can be seen that in history, elm trees are the common native tree species in our country. Elm is a good tree species, but in many places no elm seedlings in the nursery, the forest is not seen on the elm trees, for which there are many calls for a variety of elm needs.