生物炭
软件部署
环境科学
碳中和
固碳
环境经济学
中国
自然资源经济学
边际减排成本
碳纤维
碳捕获和储存(时间表)
温室气体
气候变化
计算机科学
二氧化碳
废物管理
化学
工程类
生态学
经济
有机化学
算法
热解
复合数
法学
政治学
生物
操作系统
作者
Xu Deng,Fei Teng,Minpeng Chen,Zhangliu Du,Bin Wang,Renqiang Li,Pan Wang
标识
DOI:10.1038/s41467-024-45314-y
摘要
Abstract Limiting global warming to within 1.5 °C might require large-scale deployment of premature negative emission technologies with potentially adverse effects on the key sustainable development goals. Biochar has been proposed as an established technology for carbon sequestration with co-benefits in terms of soil quality and crop yield. However, the considerable uncertainties that exist in the potential, cost, and deployment strategies of biochar systems at national level prevent its deployment in China. Here, we conduct a spatially explicit analysis to investigate the negative emission potential, economics, and priority deployment sites of biochar derived from multiple feedstocks in China. Results show that biochar has negative emission potential of up to 0.92 billion tons of CO 2 per year with an average net cost of US$90 per ton of CO 2 in a sustainable manner, which could satisfy the negative emission demands in most mitigation scenarios compatible with China’s target of carbon neutrality by 2060.
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