基于文献计量的居民食物消费碳排放研究进展及发展态势
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国家自然科学基金面上项目(42171300);甘肃省自然科学基金项目(20JR10RA026)


Research progress of household food consumption carbon emissions
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    摘要:

    食物是人类生存和发展的基础,然而城市化过程中食物消费产生的碳排放也影响着生态环境与人类福祉。双碳目标下,如何协调食物消费增长与低碳减排之间的矛盾,亟需从不同尺度制定绿色消费优化策略。基于此,从居民食物消费碳排放研究的发文态势、研究方法以及研究内容3个方面进行归纳和梳理。研究发现:①由居民食物消费引起的碳排放问题仍是未来学术界的研究热点之一;②从生产端、消费端及系统视角3个方面对居民食物消费碳排放概念和内涵进行理解,有助于界定碳排放核算边界;③目前居民食物消费碳排放核算的主流测算方法包括生命周期评价(LCA)、碳排放系数、投入产出分析(IOA)和物质流分析(MFA)方法这4种;④从碳排放分布特征看,国内外学者从不同尺度(全球、国家、地区、省域、城市)、不同方式(直接与间接)、不同环节(生产与消费等)、不同消费结构(植物型与动物型)等多角度对其进行探讨;⑤从影响机制来看,基于多尺度时空融合视角量化分析居民食物消费碳排放作用机理这一科学问题值得关注。因此,综合考虑人口、社会、经济等多要素,同时考虑空间异质性,识别居民食物消费碳排放关键机制,构建面向双碳目标的碳减排潜力情景并揭示不同情景下的碳减排贡献,将有助于提出最优的居民生活绿色消费模式。

    Abstract:

    Food is the foundation of human survival and development. However, in the process of urbanization, CO2 emissions from household food consumption affected the ecological environment and human well-being. Under the dual-carbon target, it is urgent to formulate household green consumption optimization strategies from different scales to reconcile the contradiction between food consumption growth and low carbon emission reduction. Facing the dual-carbon vision, mining the text data of the existing research household food consumption CO2 emission, and conducting its research progress and development trend, which can provide a theoretical basis for China to formulate scientific and reasonable low-carbon development strategies and green consumption patterns. Hence, this paper summarized the characteristics of articles, research method and research content of household food consumption carbon emissions. It was found that: (i) since 2011, the research on household food carbon emissions has mainly focused on the four core issues of carbon footprint, climate change, sustainability and greenhouse gases, and the total number of the related articles has shown an exponential upward trend. It can be seen that the CO2 emission from household food consumption are still a research hotspot in the future academia. (ii) Understanding the concept and connotation of household food consumption carbon emissions from the perspectives of production, consumption, and system was helpful to define the boundary of carbon emissions accounting. (iii) The mainstream accounting methods of household food consumption carbon emissions included life cycle assessment (LCA), carbon emission coefficient method, input-output analysis (IOA), and material flow analysis (MFA). (iv) Based on the distribution characteristics of CO2 emissions, the domestic and foreign scholars have explored household food consumption carbon emissions from different perspectives such as different scales (global, national, regional, provincial, city-level, et al.), different modes (direct and indirect), different phases (production, consumption, et al.), and different consumption structures (plant-based and animal-based). (v) From the perspective of influence mechanism, it was worth paying attention to the scientific issue of quantitatively analyzing the mechanism of household food consumption carbon emissions based on multi-scale spatial and temporal integration. Hence, considering multiple factors such as population, society and economy, as well as the spatial heterogeneity, identifying the key mechanisms of household food consumption carbon emissions, constructing different carbon emission reduction potential scenarios for dual carbon targets and revealing the contribution of emission reduction under different scenarios will help to propose the optimal green household food consumption pattern. The research results can provide policy reference for China to achieve the dual carbon goal.

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刘莉娜,曲建升,曾静静,韩金雨,刘淳森.基于文献计量的居民食物消费碳排放研究进展及发展态势.生态学报,2023,43(17):7331~7340

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