摘要
常绿植物具有四季常青、生长较慢、滞尘力强的特点。课题在对北京地区常绿植物现状进行全面调查的基础上,根据"气候相似论"等引种原理,从国内外首次大规模引进具有应用潜力的常绿植物32个种及品种;并在北京地区进行了3年引种驯化试验、抗寒生理测定、越冬保护技术的研究,成功筛选出适宜北京地区气候特点的常绿植物共计12个种及品种;对常绿植物的越冬防寒设施进行了研究,得出最有效的防寒措施是塑料大棚;通过对常绿植物越冬过程中叶片内可溶性糖含量的测定及抗寒力的测定,得出植物的抗性与生理适应性是相关的;并选择北京植物园、首钢厂区绿化等地,进行了共计6200平方米示范工程和配置应用的研究;总结出一整套适合北京露地生长的常绿阔叶植物引种、驯化、筛选、栽培和示范的研究成果。
The evergreen plants have the following characteristics compared with deciduous plants:evergreen all year round,stronger preventing dust ability and slower growth rate.Based on the wide investigation of the living condition of the exotic evergreen plants in Beijing,32 taxa(species and cultivars) were introduced by this project according to the analogical climate theory.12 taxa of broad-leaved evergreen plants,which are suitable for the climatic characteristics in Beijing area,were selected from a set of experiments of introduction,acclimatization,cold resistance,over winter protection,and transplant cultivation.Researching the ways of over winter protection,the result is that the plastic cover is the best protection way.Testing the soluble saccharide of leaves,got the result is that the ability to fight the cold weather is correlative with their adaptability.There are totally 6200 m2 demonstration region with the application of the chosen evergreen plants both in Beijing Botanical Garden and Shougang Group.A comprehensive achievement on introduction,acclimatization,selection and demonstration of the evergreen plants,which could live outdoors in Beijing,was concluded from this project.
关键词
常绿植物
引种
防寒设施
可溶性糖含量
抗寒性
筛选
示范
Evergreen plants
Introduction
Overwinter protection
Soluble saccharine
Cold resistance
Selection
Demonstration
