榆林沙区桃叶卫矛育苗造林试验

桃叶卫矛是榆林沙区的乡土树种。为了规范榆林沙区桃叶卫矛育苗和造林技术,开展大田播种育苗和半固定沙地造林试验。结果表明,在榆林沙区,桃叶卫矛大田育苗以4月中旬播种为宜,出苗率>80%,当年苗高>35 cm,次年可出圃造林;倒坑深栽植苗造林在平缓沙地、丘间地、沙丘中部等立地上均可进行,以春季3月下旬为宜,成活率>95%;丘间地和沙丘中下部植苗造林,苗木生长良好,次年保存株率>94%,新梢长>20 cm。

Afforestation Experiment of Euonymus maackii Seedling in Yulin Sand Area

Euonymus maackii is a native tree species in Yulin sand area. In order to standardize its seedling cultivation and afforestation technology, field seeding and cultivation and semi-fixed sandy land afforestation were carried out. The results showed that is advisable to sow seeds in the middle of April in the field in Yulin sand area, the seedling emergence rate was over 80%, the seedling height was above 35 cm, and planting could be carried out in the next year. The deep pitted afforestation can be carried out on the flat sandy land, the interhilly land, the middle of the dune, etc., and the survival rate is over 95%. Seedlings grew well on the interhilly land and the lower part of the dune. In the next year, the preserved plant rate was over 94%, and the new shoot length was above 20 cm.