Based On Low-carbon Concept Design Of Urban Green Space

Global climate change, cause people to wide attention of greenhouse gases. Researchshows that, and the city is the main source of carbon dioxide emissions. How in the processof urbanization constructing low carbon cities, implement city of carbon dioxide in lowemission, high carbon is people think a huge problem. And as in urban green space citygreen infrastructure, has good function to carbon sink, become urban planning andlandscape architecture field research hot one.In this paper, the measuring method of biomass for survey methods, to hangzhouurban green space as the research object, and hangzhou city were selected four typicalgreen space: park green space, residential area, the urban road green space, the green urbanroad green space and the green river, the kind of square investigation every woodexamining method, detailed records in the kind of square tree species and specifications,and by using the existing mathematical model to calculate its biomass and carbon reserves.The analysis of the results, and summarizes the urban green space carbon three levels of 10main influence factors, access to reference for ten big factor, used the analytic hierarchyprocess (AHP) target system construction and weighting. This as the basis of hangzhou,urban green space park green space typical cases in the analysis and optimization design.And the hangzhou urban green space system and urban green space system planning forthe brief analysis.The results show that hangzhou city green land unit area of carbon storage (notincluding urban green space soil carbon storage) difference is very big, from 5-15 tChm^-2differ, its average of 10.1 tChm^-2. Less than guangzhou of 16.4 tChm^-2, higher than Beijingof 7.7 tChm^-2. In our forest unit area about a third of the carbon storage. The result is morein line with the objective reality. Urban green carbon impact factors can be divided intothree levels: garden plants, urban green space and urban green space system. In particularis the type of garden plant, specifications and age, urban green space per unit area of green,plantation structure, crown density and leaf area index, the continuity of the urban greenspace system layout and morphological structure, balance and so on three levels 10 factorsaffect the city green land carbon absorbing ability. AHP method to influence factors of theweight computation show that will affect the city green land carbon is concerned, Leaf areaindex＞continuity＝Balance layout＞Green quantity＞Plant specifications＞Plantspecifications＞Stand structure＞Structure form＞Crown density＞Plant species＞Plantage.