Reach On The Mode Of Plant Configuration Of Urban Forest Road In Northwest Arid Areas

Serious natural environment in the northwest arid areas, urban landscape development ofarid regions has been arduous. The typical arid area of the city of Lanzhou, Zhangye,Jiayuguan and Dunhuang as the research object, to investigate serious desertification,salinization and drought of the natural environment, and the urban forest road plantconfiguration mode was established. Based on the forest road plant landscape configurationstatus of the arid zone of northwest city of Lanzhou, Zhangye, Jiayuguan and Dunhuanganalysised, this article done some survey analysis and research about urban forest roadrespectively that select several typical road section from the several cities urban main roads,parks, roads and residential road. On-the-spot investigation method, statistic road cross sectionform, and investigate road trees, a green belt in a vehicle, roadside tree species andconfiguration mode, etc. were mainly adopted, to explore the northwest arid areas urban forestroad plant landscape typical configuration mode, so as to provide construction reference fornorthwest of urban road greening. Recommend a road plant species and typical configurationmode is as follows:（1） Recommendation for northwest urban forest road plant species in arid areas:Desert resistant tree species: Fructus Lyeii，Elaeagnus angustifolia （L.），Albagipseudalkagi， Calligonnum mongonicum， Ammopipranfusmongolicus etc.SO₂resistant tree species: Ailanthus altissima，Populus alba （L.），Ulmus pumilavar，Platycladus orientalis（L.），Ssbinachinensis （L.），Salixmastsudana Koidz，etc.Dust Catching tree species: Robinia peseudoacacia，Ulmus pumila var，Ailanthusaltissima，Syringa oblata Lindl, etc.HF resistant tree species: Parthenocissus tricuspidata，Berberis thumbergii f, etc.Lawn tree species: Zinnia elegans， Festuca arundinacea，Lolium perenne L, etc.And flowering plants, fruit plants, ornamental plants, evergreen ornamental,psammophyte, etc.（2） Recommend typical city road plant configuration mode:Typical plant configuration mode:Trees deciduous trees+between deciduous trees planting modeDeciduous trees avenue system model Deciduous arbor+shrub interplanting modeEvergreen trees and deciduous trees planting modeThe central points bring typical plant configuration mode:Small arbor+shrub+flower+cover pattern die linesColored small trees+evergreen shrub+flower shrubs+grass patternSmall arbor+shrub+hedge die grain patternBoth side points bring typical plant configuration mode:Evergreen trees+deciduous arbor+flowers shrubs+cover plant modelDeciduous trees+evergreen hedge modelRoadside greenbelt plant configuration mode:Typical hedge between embedded type flower shrubsBig trees landscape typeHedge planting trees and ornament（3） Recommend the typical urban residential road plant configuration mode："Village into the mouth" configuration mode"Village main type" configuration mode"Nearby roads" configuration mode（4） Recommend the typical city park road plant configuration mode："Small garden type" configuration mode"Road waterfront" configuration mode"Road into the mouth" configuration mode"Avenue" configuration mode（5） the northwest arid areas urban forest road plant configuration mode："Water-saving" configuration mode"Northwest culture type" configuration mode"Anti pollution protection type" plant configuration mode"Agricultural doline" configuration mode...