在英国,更大的岩石开采地点可以提高增强岩石风化的效率。

IF 8.9 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES
Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-08-15 DOI:10.1038/s43247-025-02656-9
M Madankan, E P Kantzas, R M E Espinosa, S H Vetter, L Koh, P Smith, D J Beerling, P Renforth
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引用次数: 0

摘要

从大气中大规模去除二氧化碳是实现净零目标的必要条件。强化岩石风化,将破碎的硅酸盐矿物散布在农田土壤上,是一种很有前途的方法,但人们对其供应链的物流知之甚少。在这里,我们使用了一个数值时空分配模型,该模型将英国潜在的岩石提取地点与农田联系起来,模拟了2025-2070年期间的部署路径。我们发现,扩大单个采石场(比目前的平均规模大20倍),优先考虑供应时间和地点,可以将碳去除效率提高20%,将运输需求减少60%,将运营采石场的数量减少四倍,同时到2070年实现高达7亿吨的二氧化碳去除。然而,这些大型基地可能面临更强烈的当地反对和规划挑战,这强调了政策在实现可行部署方面的关键作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Larger rock extraction sites could improve the efficiency of enhanced rock weathering in the United Kingdom.

Larger rock extraction sites could improve the efficiency of enhanced rock weathering in the United Kingdom.

Larger rock extraction sites could improve the efficiency of enhanced rock weathering in the United Kingdom.

Larger rock extraction sites could improve the efficiency of enhanced rock weathering in the United Kingdom.

Large-scale removal of carbon dioxide from the atmosphere is required to meet net-zero targets. Enhanced rock weathering, in which crushed silicate minerals are spread on cropland soils, is a promising approach, but the logistics of its supply chain are poorly understood. Here, we use a numerical spatio-temporal allocation model that links potential rock extraction sites in the United Kingdom with croplands, modelling deployment pathways over the period 2025-2070. We find that expanding individual quarries (up to 20 times larger than the current average) and prioritising supply timing and location can increase carbon-removal efficiency by 20%, cut transport demand by 60% and reduce the number of operating quarries four-fold, while enabling up to 700 million tonnes of carbon dioxide removal by 2070. However, these large sites may face stronger local opposition and planning challenges, underscoring the critical role of policy in enabling feasible deployment.

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来源期刊
Communications Earth & Environment
Communications Earth & Environment Earth and Planetary Sciences-General Earth and Planetary Sciences
CiteScore
8.60
自引率
2.50%
发文量
269
审稿时长
26 weeks
期刊介绍: Communications Earth & Environment is an open access journal from Nature Portfolio publishing high-quality research, reviews and commentary in all areas of the Earth, environmental and planetary sciences. Research papers published by the journal represent significant advances that bring new insight to a specialized area in Earth science, planetary science or environmental science. Communications Earth & Environment has a 2-year impact factor of 7.9 (2022 Journal Citation Reports®). Articles published in the journal in 2022 were downloaded 1,412,858 times. Median time from submission to the first editorial decision is 8 days.
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