Study Of Three-Dimensional Greening Design Of Primary And Middle Schools In High-Density Urban Area In Summer-Hot And Winter-Cold Region Of China

With the development of contemporary urbanization,urban greeningreduce rapidly,urban ecological environment has become worse,climate environment has become more severe,the urban heat island effect is more apparent,especially in the Yangtze river basin and its surrounding in summer-hot and winter-cold region,extreme weather conditions,suitable for the requirements of the region growing plants is also higher.Primary and middle school students are at the age of puberty stage,they need a healthy and comfortable learning environment.And greening can provide oxygen,purify air and noise reduction,green plants is beneficial to protect vision of primary and middle school students,it can also bring good mood to them.Therefore,the primary and middle school students in learning life need more green environment.Under the background of the present rapidurbanization developmentin China,urban construction of primary and secondary schools to have room for expansion.To guarantee adequate teaching space of rigid demand,the school will give priority to the design of teaching space to meet the demand of normal teaching,and green space will be compressed and neglect.Campus insufficient land,the ground green space become less.Sothree-dimensional greening is a kind of solution,the roof greening,balcony greening,walls greening and stereo greening mode can effectively alleviate the shortage of the floor space.Three-dimensional greening has been implemented in many schools,but there are still many problems.This paperfound these problems and analyze restrictions.The first is the literature study and field investigation.Literature study part includes the study of regulations and policies.The author chose Jianghan district,Wuhan,the highest population density region,as the site of investigation,to investigatequo of three-dimensional greening in primary and secondary schools.Based on the summary of the status quo investigation,the author found many problems,including lack ofand managing insufficient,structure condition,the airsafety,etc.Through the analysis of the problems,the author found many factors,such as policies and regulations lag,school funds is limited,climate conditions,building structure aging,neglect of stereo virescence design,etc.The second is the study of the design elements.The author study from four aspects including the design requirements,design,dimension,design type and the plant disposition,to anylize the design elements of the summer-hot and winter-cold region,high urban density vertical greening of primary and secondary schools.According to the demand of primary and middle school students use crowd,the paper study the three-dimensional greening activities related to space requirements and safety requirements;Design scale part research physical dimension and psychological scales of primary and middle school students;Design type part depends on the type of three-dimensional greening: roof greening,walls greening and balcony greening.In turn by type analysis and case analysis,the paper put forward the corresponding design strategy;Plant configuration includes colorand plant security configuration research.The last is based on green rate statistics evaluation method research.By means of software simulation research,quantitative evaluation method is put forward.Green rate evaluation method research from the perspective of observation more intuitive to reflect the three-dimensional greening effect,and to provide a scientific basis for three-dimensional greening design of primary and secondary schools inthesummer-hot and winter-cold region.This study provides a current elementary and middle schools greening in hot summer and cold winter areas of high density urban development design thought,three-dimensionalgreening construction can be used as primary and secondary schools greening construction and development of a kind of beneficial attempt.