论文部分内容阅读
城市道路绿化是城市道路建设的重要组成部分,它对保护城市的自然环境和改善市民的生活环境具有极其重要的意义。长顺县位于贵州省中部,全县属于中亚热带季风湿润气候,年均气温13.5℃,年降雨量1250～1400毫米,气候温和,雨量充沛,夏无酷暑,冬无严寒,基本上雨热同季。一、调查方法采用全部实地调查记录的方法。共调查了城区道路28条,其中主干道13条,次干道3条,支路12条。主要调查记录各道路的行道树、隔离带、路边绿化带等路域的树种名称、株数,典型抽样实测其胸径、株距,并记录其长势、生长环境、伴生物种等。其中,乔木和大灌木通过实测按株数统计,中、小灌木和草
Urban road greening is an important part of urban road construction. It is of great significance for protecting the natural environment of cities and improving the living environment of citizens. Changshun County is located in central Guizhou Province, the county belongs to the humid subtropical monsoon climate, with an average annual temperature of 13.5 ℃, annual rainfall of 1250 ~ 1400 mm, mild climate, abundant rainfall, no summer heat, no cold winter, season. First, the survey method used in all field survey records. A total of 28 urban roads were surveyed, including 13 main roads, 3 secondary roads and 12 branch roads. The main survey records the name, number and type of tree species of roadway trees, isolation belt and roadside green belt in each road. The DBH and the plantar distance are measured by typical sampling and the growth, growth environment and associated species are recorded. Among them, trees and shrubs by statistics measured by the number of trees, small shrubs and grass