现代木结构建筑全生命周期碳足迹评价研究进展OA北大核心CHSSCDCSTPCD
Research progress on life cycle carbon footprint assessment of modern timber construction
建筑业作为高耗能行业,每年碳排放量约占全球碳排放总量的40％,给环境带来了巨大负担.随着我国在2020年提出"双碳"战略目标,建筑业低碳发展已经势在必行.由于木材本身具有"固碳"特性,木结构建筑在碳减排方面具有天然优势.因此,积极推广现代木结构建筑,明确现代木结构建筑的减碳效益正成为当前重要的研究主题,对木材产业的低碳高质量发展亦具有重要意义.然而,尽管现代木结构建筑在碳足迹评价方面的研究热度不断上升,但在研究范围和评价方法上,国内外学者之间存在显著的不一致性.这种差异不仅削弱了碳足迹评估的准确性,还为制定统一的碳足迹评价标准带来了挑战.本文对国内外相关研究进行系统回顾,从3个方面分类整理了现代木结构建筑碳足迹评价的国内外研究现状,揭示了该研究领域的前沿和热点问题;同时,从全生命周期视角深入探讨了现代木结构建筑的各类碳足迹评价方法,并总结了现代木结构建筑碳足迹评价研究的不足与发展方向,以期为现代木结构建筑全生命周期的碳减排效益研究提供可靠的评价方法与理论基础.此外,提出了未来研究重点:建立针对木材固碳效应的评价标准;构建统一完善的木材碳排放因子数据库;明确适用于木结构建筑的碳足迹计算方法;加强木结构建筑物化阶段的碳足迹研究.
The construction industry,as a high-energy-consuming sector,accounts for approximately 40％of global annual carbon emissions,placing a substantial burden on the environment.With the introduction of China's"Dual Carbon"strategic goals in 2020,transitioning towards low-carbon development in the construction sector has become essential.Owing to the inherent carbon-sequestration properties of wood,timber construction holds anatural advantage in carbon emission reduction.Therefore,actively promoting modern timber construction and clarifying its benefits in carbon reduction are emerging as critical research topics.This is especially significant for the low-carbon,high-quality development of the timber industry.Despite the growing focus on carbon footprint assessment in timber construction,significant inconsistencies in research scope and evaluation methods exist among scholars both domestically and internationally.Such discrepancies not only compromise the accuracy of carbon footprint assessments but also pose challenges in formulating unified evaluation standards.This paper systematically reviews relevant research from around the world,categorizing and discussing the current state of carbon footprint evaluation in timber construction,and identifying the leading issues and hot topics in this field.It further explores various carbon footprint evaluation methods for timber construction from a life-cycle perspective,summarizing the research gaps and future directions.This aims to provide reliable evaluation methods and theoretical foundations for studies on the carbon reduction benefits throughout the lifecycle of modern timber construction.Additionally,it outlines key areas for future research:establishing evaluation standards for the carbon sequestration effects of timber;developing a unified and comprehensive database for carbon emission factors of timber;clarifying suitable carbon footprint calculation methods for timber construction;and enhancing research on the carbon footprint during the physical phases of timber construction.
张欣怡;李灵芝;张磊;杨会峰
南京工业大学土木工程学院,江苏 南京 211800
土木建筑
木结构建筑碳足迹生命周期评价(LCA)碳排放物化阶段评价标准
timber constructioncarbon footprintlife cycle assessment(LCA)carbon emissionsphysical phaseevaluation standards
《南京工业大学学报（自然科学版）》 2024 (004)
387-396 / 10
国家自然科学基金(71901120)
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