The Plants Selection Of Roof Greening And Application Study In Jinan

With the acceleration of the process of urbanization,urban land has become increasingly narrow and green area has continuously reduced.Roof greening as a new greening form which does not take urban ground space has become an effective way to increase urban green area.It is an urgency thing to establish a scientific plant selection system in comprehensive implementing roof greening at present.This article is based on the present situation of roof greening in Jinan,points at the problems of high repeat rate of plant application/monotonous landscape/unmatched requirements of plants application and roof environment/unmatched phenomenon of color and form of plants and architecture in Jinan roof greening,develops the research in plant selection and landscape design.The plant selection of roof greening is main focus in Sedum plants and other ground cover plants in China.There are fewer researches focus on arbors and bushes.This article is firstly do the selection experiments of arbors and bushes in Shandong roof greening.According to the characteristics of climate status and environment of roof in Jinan,this research selects12species of arbors or bushes which are widely used and have outstanding characteristics in Jinan ground greening:Prunus ceraifera cv.Cotinus coggygria、Forsythia suspensa(Thunb)vahl、Syzygium aromaticum、Lagerstroemia indica、Euonymusjaponicus、Buxus sinica(Rehd.et Wils)Cheng、Kerria japonica(L)DC、Sorbaria kirilowii(Reqel)Maxim、Berberis thunbergii cv.atropurpurea,Chimonanthus praecox,Weigela florida cv.Red Prince.This article mainly researches the drought resistance and water lodging of plants.The research through experiments the index of contents of chlorophyll/PROL1NE/MDA and activities of POD/SOD in plants which are in the condition of stress,while uses membership function of comprehensive evaluation method defines the crescendo abilities of drought resistance and water lodging.The results reveal: (1)Twelve kinds of drought-resistance of trees from strong to weak order Under drought stress::Hokkaido Chinese littleleaf box>Japan Euonymus>F.atropuTpurea>Wintersweet>Clove,Flos Caryophyllata,lilac>Weigela florida cv.Red Prince>Weeping Forsythia>Lagerstroemia indica>Sorbaria kirilowii>Cotinus coggygria>Redleaf Cherry Plum>Kerria(2)Twelve species of trees of waterlogging resistance from strong to weak order under flooding stress:Wintersweet>Hokkaido Chinese littleleaf box>Lagerstroemia indica>Japan Euonymus>Weeping Forsythia>Redleaf Cherry Plum>F.atropuTpurea>Weigela florida cv.Red Prince>Sorbaria kirilowii>Clove,Flos Caryophyllata,lilac>Sorbaria kirilowii>Kerria(3)The physiology experimental results which comprehensive drought-resistant and waterlogging-resistance indicates:twelve tree species are able to tolerate more than10days of drought and waterlogging.The twelve tree s species can adjust the roof greening conditions and can be recommended in Jinan.(4)Based on the results of plant resistance experimental and the survey of roof greening application,Seventy-six plant species are selected to use directly in roof greening of jinan.Integrated survey of roof greening application and previous research,110roof greening are selected which include22arbor species,35shurb species,13perennial flower species,8climbing species,7Sedum species,11ornamental grass species,7aquatic species,7cash crop species.Using the selected plants in roof greening states the design principle of ecological artistry geographical function in landscape design of roof greening,analysis different plants suitable different roof load contains,states the relationship between architect form,color,function and plants landscape design in roof greening,while research the relationship of plant color and architect color.Focused on three types of roof greening:simple roof greening,container roof greening,gardening roof greening,study the appropriate objects,proposed a different method of plant landscape design and provided a basis guidance for the green roof construction of Jinan...