8种宿根花卉盐碱地适应性评价

为筛选适宜在盐碱地上用于园林绿化的宿根花卉,以荷兰菊、重瓣金鸡菊、宿根天人菊、花坛草坪石竹、金娃娃萱草、红花萱草、大花萱草、马蔺为试材,通过对泰安非盐碱地和东营盐碱地上的栽植对比分析认为,除花坛草坪石竹、马蔺外,其余6种宿根花卉均表现出不同程度的低矮性状;荷兰菊、重瓣金鸡菊、宿根天人菊、花坛草坪石竹在盐碱地上成活率高、适应性优良,可大量应用于东营盐碱地园林绿化中;大花萱草、马蔺适应性中等,可采取保护措施适当种植;金娃娃萱草、红花萱草适应性差,成活率低,观赏效果不佳,不建议应用到盐碱地园林景观中。

Adaptability Evaluation for 8 Species of Perennial Root Flowers in Saline-alkali Land

In order to screen the perennial root flowers suitable for landscape greening on saline-alkali land,Aster novi-belgii,Coreopsis lanceolata‘Double Sunburst’,Gaillardia aristata,Dianthus chinensis‘Kahori’,Hemerocallis fulva‘Golden Doll’,Hemerocallis hybrida,Hemerocallis middendorfii,and Iris ensata were selected as test materials.Through the comparison of planting in Taian(non-saline-alkali land)and Dongying(saline-alkali land),the results showed that:Except for D.chinensis‘Kahori’and I.ensata,the other 6 species of perennial root flowers all showed low growth characters to different degrees.A.novi-belgii,C.lanceolata‘Double Sunburst’,G.aristata,and D.chinensis‘Kahori’have a high survival rate and good adaptability in saline-alkali land,which can be widely used in the garden greening of saline-alkali land in Dongying.The H.middendorfii,and I.ensata are moderately adaptable,and can be planted appropriately with protective measures.The H.fulva‘Golden Doll’and H.hybrida have poor adaptability,low survival rate and poor ornamental effect,so they are not recommended to be used in the saline-alkali land landscape.