基于碳收支核算的碳中和校园构建

基于因子分析法及调研所得数据,对某学院年度碳排放与碳吸收进行测算。其中,从大学生、教职工与日常管理3方面测算碳排放量,根据校园绿地类型分类对碳汇量进行了测算。结果表明:大学生与教职工在“住”这一领域碳排放量占比最高,分别为49%与61%,日常管理中后勤管理碳排放量最高,占比81%;对校园乔灌草型、灌草型、草坪型、草地型以及毛竹型绿地的固碳量进行了测算,发现草坪型绿地的年固碳量最高,毛竹型绿地固碳量最低;学院年度碳排放总量为70 746.07 t,碳汇量为1 474.60 t,碳赤字水平较高。基于此,从“减排”与“增汇”两大视角提出了构建碳中和校园的对策,以期推动学校尽快实现碳中和。

Based on factor analysis and survey data,the annual carbon emissions and carbon sequestration of a certain college were calculated.Specifically,carbon emissions were calculated from three aspects:students,faculty and staff,and daily management.Carbon sequestration was calculated by classifying campus green spaces by type.The results showed:Students and faculty/staff had the highest carbon emissions in the"housing"sector,accounting for 49%and 61%respectively,while logistics management had the highest carbon emissions in daily management,accounting for 81%.The annual carbon sequestration was calculated for dfferent types of campus green spaces,including arbor-shrub-grass,shrub-grass,lawn,grassland,and bamboo;the lawn type had the highest annual carbon sequestration,while the bamboo type had the lowest.The college's total annual carbon emissions were 70746.07 tons,and its carbon sequestration was 1474.60 tons,resulting in a high level of carbon deficit.Based on these findings,countermeasures were proposed for building a carbon-neutral campus from the perspectives of"emission reduction"and"sequestration enhancement,"aiming to help the school achieve carbon neutrality as soon as possible.