银川市园林绿化树种引种试验

Tree Introduction for Landscape Architecture Purpose in Yinchuan

为满足银川市城市园林建设不断增长的优良树种和更多更好的园林景观需求,对从甘肃、陕西等地引进的17种(品种)优良园林植物适应性、生长量、生育期等进行了观察、测定,结果为越冬成活率为63%～100%,紫玉兰、太阳李、胶东卫矛和砂碧桃低于85%,华山松为85%,樱花、圆冠榆、金叶白蜡、园蜡2号、香花槐、白皮松、花叶连翘、亚当海棠等都在90%以上;所有树种(品种)生长发育正常,生物学特征、特性表现稳定,绿化美化效果符合预期目标;香花槐、金叶榆、黄栌、胶东卫矛、花叶连翘、朱砂碧桃等生长较快,生长量大。园林绿化中除紫玉兰、胶东卫矛需在冬季采取更好保温措施外,其他树种采取一般措施就可在银川市园林建设中应用。

To meet the increasing requirements for landscape architecture with fine tree,17 tree species(varieties)were introduced to Yinchuan for domestication observation regarding growth performance,increment and regeneration.The survival rate over winter of these trees was from 63%to 100%.Survival rate of Magnolia liliiflora,Taiyang plum,Euonymus kiautschovicus and Amygdalus persica var persica f.duplex was lower than 85%,while that of Pinus armandii,cherry,Ulmus densa,Fraxinus chinensis Roxb,Fraxinus velutina Yuanla,Robinia pseudoacacia cv.Idaho,Pinus bungeana Zucc,Forsythia suspense and Malus micromalus cv.“American”was above 90%.All the trees grew well and performed good in biological characters,with expected green effect reached.Robinia pseudoacacia cv.Idaho,Ulmus pumila'Jinye',Cotinus coggygria Scop.,Euonymus kiautschovicus,Forsythia suspense and Amygdalus persica var persica f.duplex grow faster,with great increment.All the trees applied in the landscape purpose can be over winter as it is without protection measures except Magnolia liliiflora and Euonymus kiautschovicus.