Study On Optimized Design Of Campus Landscape Of Xi’an University Of Architecture And Technology Based On Carbon Sink Quantification

At the COP26 meeting,China clearly put forward the policy of accelerating carbon peaking and carbon neutrality,hoping to achieve its expected goals faster.On the basis of this policy,the quantification of carbon sources and sinks has been applied by various industries as an important indicator to measure carbon balance.In urban green spaces,the population density of campus green spaces is relatively high,and the interference is relatively small.The green space structure within the campus landscape is complete,and can be connected to urban green spaces as independent units.It is a research object for landscape carbon balance in benchmark cities and a demonstration point for lowcarbon urban green spaces.The life cycle method is a calculation method for the entire process,often used in quantitative research on landscape carbon sources and sinks in landscape construction.This article takes Xi’an University of Architecture and Technology as the research object,investigates and calculates the carbon source and carbon sink of various factors in its landscape material production stage,landscape daily use stage,landscape maintenance and management stage,and landscape plant carbon sink stage.After analysis,the factors that affect the campus carbon budget are identified,and optimization strategies to accelerate the balance of campus green space landscape carbon budget are proposed.This study is divided into the following conclusions:(1)Develop a process for optimizing the estimation of campus landscape carbon balance through research on relevant materialsBy comparing and sorting out the calculation methods of carbon sources and sinks at home and abroad,as well as the theoretical research on landscape life cycle,the carbon source and sink data will be brought into the carbon balance software for calculation,and the estimation process of landscape carbon balance will be obtained.Based on this estimation process,calculate the entire lifecycle of the campus landscape.(2)Determine the decisive factors affecting the carbon source and sink of campus landscape through campus landscape research and analysisTaking the Yanta Campus of Xi’an University of Architecture and Technology as the research object,the carbon source and carbon sink factors that need to be calculated in the campus landscape are analyzed.Based on actual research,the current situation of campus paving materials,landscape structures,lighting fixtures,and plants is analyzed,providing a calculation basis for the carbon source and carbon sink estimation of campus green spaces.(3)Based on the purpose of carbon sink optimization,using landscape plant design techniques to optimize design and enhance the carbon sink of campus green space landscapeBased on carbon sequestration optimization,a plant optimization design was proposed to improve the carbon sequestration capacity of the campus landscape for each partition by summarizing the local plants in the Xi’an region and the plant configuration and landscape design techniques of the Xi’an University of Architecture and Technology campus.This increased the carbon sequestration capacity per unit area of each partition,increased the overall carbon sequestration per unit area of the Yanta Campus of Xi’an University of Architecture and Technology by 0.02 kg CO2/m2,and increased the time frame for achieving carbon balance by 70 years.(4)Based on optimization analysis,propose a low-carbon construction model for university campus landscape according to different stages of the landscape lifecycle and functional zonesAfter conducting research,calculation,and summary on the landscape of university campuses,principles and methods for the construction of low-carbon campuses have been proposed.To reduce campus carbon emissions,increase campus carbon green space sinks,accelerate the process of campus carbon balance,and contribute to the carbon sink pattern of urban green space.