【摘要】 对引进灌木树种的物候期、生长规律、抗性进行研究,各树种之间差异较大,洋白腊、银水牛果生长表现良好,抗寒、抗旱性强。适宜在干旱半干旱地区发展,洛基山刺柏、美国稠李、西部沙樱当年生长表现较好,第二年春季有较严重的抽梢现象,有待进一步观察,进行抗寒、抗旱驯化。更多还原

【Abstract】 Phenology,growth pattern,resistance of introducted shrub species were studied.The large differences existed among species,Fraxinus pennsylvanica,Shepherdia argentea growth performed well,cold,drought resistance were strong,suitable for development in arid and semi arid areas,Juniperus scopulorum,Prunus virginiana and Prunus besseyi performed better in same year,there are more serious Choushao phenomenon,remais further observation.更多还原