来源:Soil Ecology Letters 发布时间:2022/7/21 13:33:09
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SEL | 前沿综述:生物炭和生物风化矿粉通过碱化土壤增强无机碳固存

论文标题:Soil inorganic carbon sequestration through alkalinity regeneration using biologically induced weathering of rock powder and biochar(生物炭和生物风化矿粉通过碱化土壤增强无机碳固存)

期刊:Soil Ecology Letters

作者:Muhammad Azeem, Sajjad Raza, Gang Li, Pete Smith, Yong-Guan Zhu

发表时间:18 Apr 2022

DOI:10.1007/s42832-022-0136-4

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朱永官院士课题组论述了岩屑粉末和生物炭或骨炭在土壤碱度增加中的作用和机理,指出,将岩屑粉末或骨炭与微生物制剂相结合,可以减轻土壤酸化和无机碳的损失,并改善农业循环。

文章亮点

● 在全球范围内,土壤酸化导致了土壤无机碳储量损失严重。

● 通过恢复碱度的方法可以减轻土壤无机碳的损失。

● 岩屑粉末或者矿粉可向土壤提供大量的碱性阳离子,缓解其酸化。

● 微生物可增强岩屑粉末或者矿粉的风化作用。

● 通过添加生物炭和骨炭恢复了土壤碱度,减少了无机碳的损失。

文章简介

土壤无机碳(SIC)储量约占全球碳储量的一半,其比土壤有机碳(SOC)更加稳定。然而,施用氮肥会导致土壤酸化,加速无机碳的损失,尤其集约管理下持续施用氮肥可能会导致土壤无机碳的完全流失。非石灰性土壤的肥力和生产力较低,土壤中的无机碳更容易流失。因此,尽量减少无机碳流失对保持土壤健康和缓解气候变化至关重要。岩屑粉末或矿粉是一种更廉价的土壤改良剂,可用来增加土壤碱度。然而,其矿物的溶解较为缓慢,从而限制了其有效性。而土壤微生物在岩石风化过程中起着至关重要的作用,将其接种在矿物残渣上可以提高其溶解速率。生物炭可作为土壤改良剂,尤其是骨炭(BBC)的钙和镁含量更高,可提高土壤的碱度。本文主要论述了:i)岩屑粉末在土壤碱度增加中的作用和机理;ii)生物炭或骨炭在土壤碱度增加中的作用;iii)微生物接种在岩屑粉末或骨炭中,可通过增强矿物溶解而加速碱度提高。我们的结论是,将岩屑粉末或骨炭与微生物制剂相结合,可以减轻土壤酸化和无机碳的损失,并改善农业循环。

摘要

Soil inorganic carbon (SIC) accounts for about half of the C reserves worldwide and is considered more stable than soil organic carbon (SOC). However, soil acidification, driven mainly by nitrogen (N) fertilization can accelerate SIC losses, possibly leading to complete loss under continuous and intensive N fertilization. Carbonate-free soils are less fertile, productive, and more prone to erosion. Therefore, minimizing carbonate losses is essential for soil health and climate change mitigation. Rock/mineral residues or powder have been suggested as a cheaper source of amendments to increase soil alkalinity. However, slow mineral dissolution limits its efficient utilization. Soil microorganisms play a vital role in the weathering of rocks and their inoculation with mineral residues can enhance dissolution rates. Biochar is an alternative material for soil amendments, in particular, bone biochar (BBC) contains higher Ca and Mg that can induce even higher alkalinity. This review covers i) the contribution and mechanism of rock residues in alkalinity generation, ii) the role of biochar or BBC to soil alkalinity, and iii) the role of microbial inoculation for accelerating alkalinity generation through enhanced mineral dissolution. We conclude that using rock residues/BBC combined with microbial agents could mitigate soil acidification and SIC losses and also improve agricultural circularity.

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Soil Ecology Letters(SEL) 由高等教育出版社与中国科学院城市环境研究所共同主办,SpringerNature海外发行,旨在及时地反映土壤生态学研究的学术成果,报道国内外土壤生态学前沿领域的学术进展,发表文章类型主要包括Letter to editor、Perspective、Review、Rapid report、Research article、Commentary。

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期刊定位

SEL(Soil Ecology Letters) 2019年正式创刊。定位为土壤生态学领域类高水平科技期刊。旨在全球范围内充分、及时、全面地反映土壤生态学领域研究进展,报道国内外土壤生态学前沿领域高水平的学术成果。

报道领域

报道领域包括:土壤生物多样性、土壤互营和食物网、土壤微生物组、土壤—植物相互作用、土壤生物地球化学循环、土壤生物修复和恢复、土壤多功能性、土壤生物对环境变化的响应和适应、土壤生态过程的突破性技术、新理论和模型。

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