揭示中国各省当前和未来食物浪费对环境的影响及其管理

IF 12.4 Q1 ENVIRONMENTAL SCIENCES Resources Environment and Sustainability Pub Date : 2022-09-01 DOI:10.1016/j.resenv.2022.100064
Abiodun Ogunmoroti, Min Liu, Muyang Li, Wei Liu
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引用次数: 27

摘要

重大环境和气候变化是由社会经济发展变化驱动的。由于中国许多省份社会经济的快速发展,食物浪费问题、不可持续的管理以及相关的环境后果正成为人们关注的焦点。本研究从生命周期的角度评估了中国各省食物垃圾的现状和未来状况、食物垃圾管理以及相关的环境影响。根据研究结果,在不同的社会经济途径下,2020年中国的食物浪费估计为6137万吨,到2040年可能高达10095 - 13982万吨。与2016年相比,人均食物浪费增加了29.67%,其中天津的人均食物浪费最高。相应的,2020年中国食物浪费的温室气体排放量估计为14925 Mt CO2eq,这在很大程度上受到各省食物浪费种类的影响。在不同的社会经济发展路径下,预计食物浪费的环境负担将增加70%-148%。厌氧消化需要淡水,这可能给面临水资源短缺的中国省份带来挑战。到2040年,将食物垃圾转化为厌氧消化可以将食物垃圾的温室气体排放量减少约74%。如果中国许多省份继续以目前的食物垃圾管理趋势为基础,中国向可持续垃圾管理的转型可能会受到阻碍,经济上也难以持续。这些发现对于制定省一级减少食物浪费的目标和制定战略以确保社区积极参与减少食物浪费的计划至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Unraveling the environmental impact of current and future food waste and its management in Chinese provinces

Major environmental and climate changes are driven by changes in socioeconomic development. The problem of food waste, its unsustainable management, and associated environmental consequences are becoming great concerns due to the rapid socioeconomic development in many Chinese provinces. This study assessed the current and future status of food waste and its management, and the associated environmental impact in all Chinese provinces from life cycle perspective. Based on result, food waste in China was estimated as 61.37 Mt in 2020 and could be as high as 100.95–139.82 Mt by 2040, under various socioeconomic pathways. Average per capita food waste has increased by 29.67% from 2016 and Tianjin was found to have the highest per capita food waste. Correspondingly, GHG emission of food waste in China was estimated as 149.25 Mt CO2eq in 2020, and is largely influence by the varieties of food wasted in each province. The environmental burden of food waste is projected to increase by 70%–148% under different socioeconomic development pathways. Anaerobic digestion demands freshwater and may pose challenges for Chinese provinces facing water scarcity. Diverting food waste to anaerobic digestion can reduce GHG emissions of food waste by 74% by 2040. China’s transition to sustainable waste management may be impeded and unsustainable economic-wise if many Chinese provinces continue to build on their current food waste management trend. These findings could be pivotal in setting food waste reduction goals at provincial level and devising strategies to ensure active involvement of community in food waste reduction programs.

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来源期刊
Resources Environment and Sustainability
Resources Environment and Sustainability Environmental Science-Environmental Science (miscellaneous)
CiteScore
15.10
自引率
0.00%
发文量
41
审稿时长
33 days
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