园林铺装花岗石碳排放量的测度

园林铺装石材的碳排放量测度是量化园林建设中碳排放量的重要环节。为了减少园林工程CO2排放量和能源消耗量,通过从定性评价到定量测度的转变,以园林石材中最常用的花岗石为例,基于生命周期法(LCA)将花岗石全生命周期分为石材产品生产加工阶段、规划设计阶段、建造施工阶段、使用维护阶段、清除回收阶段。在微观尺度下对碳排放量进行测度研究,建立了石材铺装过程碳排放量测度模型。通过此模型,以南京体育学院网球场花岗石铺装为例,计算其生命周期各阶段的铺装碳排放量,得出样本区2 308 m2花岗石铺装产生的碳排放量(以CO2量计)为12 436.73 kg。分析产生碳排放的原因,并提出各阶段相应的减排措施,认为应将减排重点放在施工建造阶段和使用维护阶段。
Measuring carbon emissions of garden stone paving materials is an important part of quantifying the carbon emission in the garden construction period.In order to reduce the CO2 emissions and achieve a reduction of energy consumption in landscape engineering, the converting from qualitative evaluation to quantitative measurement was used in this article and granite, the most commonly used garden stone was illustrated here to be divided into several stages as: production and processing stage,planning and design stage,construction stage,operation and maintenance stage, removal and recovery stage based on life cycle analysis(LCA). The establishment of the carbon emission measurement model in the stone paving process was on the basis of the measurement research of carbon emissions at micro-scale. The carbon emissions for an area of 2 308 m2 granite pavement of tennis court in the Nanjing Institute of Physical Education and Sports was 12 436.73 kg,when above model was used to calculate carbon emission of its pavement in various life cycle stages at a micro-scale.And after analyzing the causes of carbon emissions, the corresponding measures for reducing the carbon emissions were put forward. In order to get reduction of emission,the emphasis should be focused on the construction and maintenance stage