垂榆是白榆作砧木,垂榆(是白榆的变型)的枝条为接穗,通过嫁接繁殖的。垂榆枝条细长,柔软下垂,树形美观,冠形如伞状。该树种具有生长快,耐寒、耐旱、耐盐碱,并能抗大气污染,对土壤条件要求不严,是我区城市、工矿企业绿化、美化环境的新树种。垂榆作为绿化观赏树种,可在砧木不同部位进行嫁接。根据绿化、美化的需要,来确定其嫁接的方法、高度和树形。其方法如下: Elm elm is an elm as stock, hanging elm (elm variant) branches for the scion, breeding by grafting. Elm sticks slender, soft drooping, beautiful tree, crown-shaped umbrella. The tree species with fast growth, cold, drought, salinity, and resistance to atmospheric pollution, lax requirements of soil conditions, is our city, industrial and mining enterprises green, beautify the environment of the new species. As the green ornamental tree species, weeds can be grafted in different parts of rootstocks. According to the needs of afforestation and beautification, to determine the method of grafting, height and tree. The method is as follows: