globalchange  > 过去全球变化的重建
DOI: 10.3390/en12122299
WOS记录号: WOS:000473821400072
论文题名:
Alkaline Mineral Soil Amendment: A Climate Change "Stabilization Wedge'?
作者: Haque, Fatima; Chiang, Yi Wai; Santos, Rafael M.
通讯作者: Santos, Rafael M.
刊名: ENERGIES
ISSN: 1996-1073
出版年: 2019
卷: 12, 期:12
语种: 英语
英文关键词: carbon sequestration ; climate change mitigation ; alkaline minerals ; enhanced weathering ; soil amendment ; stabilization wedge
WOS关键词: FLOOR ORGANIC-MATTER ; CARBON SEQUESTRATION ; FORSTERITE DISSOLUTION ; INORGANIC CARBON ; ARTIFICIAL SOILS ; ATMOSPHERIC CO2 ; OLIVINE ; PRECIPITATION ; BIOCHAR ; DIOXIDE
WOS学科分类: Energy & Fuels
WOS研究方向: Energy & Fuels
英文摘要:

Extreme climate change due to heat-trapping gases, especially carbon dioxide, necessitates its mitigation. In this context, the carbon dioxide sequestration technology of enhanced weathering has for years been investigated, with a possible implementation strategy via alkaline mineral soil amendment being more recently proposed. Candidate materials for enhanced weathering include calcium and magnesium silicates, most notably those belonging to the olivine, pyroxene and serpentine groups of minerals, given their reactivity with CO2 and global availability. When these finely crushed silicate rocks are applied to the soil, the alkaline earth metal cations released during mineral weathering gradually react with carbonate anions and results in the formation of pedogenic carbonates, which, over time, and under the right conditions, can accumulate in the soil. This review paper critically reviews the available literature on alkaline mineral soil amendments and its potential to sequester enough CO2 to be considered a climate change stabilization wedge'. Firstly, evidence of how agricultural soil can serve as a carbon sink in discussed, based on the observed accumulation of inorganic carbon in alkaline mineral-amended soils. Secondly, the impact of alkaline minerals on agricultural soil and crops, and the factors determining the rate of the weathering process are assessed. Lastly, the CO2 sequestration potential via alkaline mineral soil amendment is quantified according to an idealized shrinking core model, which shows that it has the potential to serve as a climate change stabilization wedge.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/140080
Appears in Collections:过去全球变化的重建

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作者单位: Univ Guelph, Sch Engn, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada

Recommended Citation:
Haque, Fatima,Chiang, Yi Wai,Santos, Rafael M.. Alkaline Mineral Soil Amendment: A Climate Change "Stabilization Wedge'?[J]. ENERGIES,2019-01-01,12(12)
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