Designing a carbon capture function into urban soils
Designing a carbon capture function into urban soils
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DOI：
10.1680/udap.2011.164.2.121
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发表时间：
2011-06
期刊：
影响因子：
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通讯作者：
P. Renforth;J. Edmondson;J. Leake;K. Gaston;D. Manning
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文献类型：
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作者：
P. Renforth;J. Edmondson;J. Leake;K. Gaston;D. Manning
如果设计和管理得当，土壤可以将大气中的碳作为累积的有机物质、难熔形式的碳(例如生物炭)或稳定的无机碳酸盐矿物保留下来。这种土壤的碳捕获功能非常适用于城市地区的建筑环境，在规划新的或现有的开发项目时应该考虑到这一点。在英国，使用生物炭和积累的碳酸盐矿物，城市土壤的总碳捕获潜力可能高达7Mt/年，这在意义上与其他形式的地球工程相同。此外，可以实施土壤和植被管理措施，在城市土壤中积累植物来源的有机碳。城市环境中大量土壤碳固定的潜力尚未实现，土壤碳捕获的各种实践给规划系统带来了需要解决的认证和监管挑战。
Soils, if designed and managed correctly, can retain carbon from the atmosphere as accumulated organic matter, refractory forms of carbon (e.g. biochar) or stable, inorganic, carbonate minerals. This soil ‘carbon capture function’ is highly applicable to the constructed environment in urban areas and should be considered when planning for new or existing developments. The total carbon capture potential of soils in cities may be as high as 7 Mt/year within the UK using biochar and accumulated carbonate minerals, which is equivalent in significance to other forms of geoengineering. Furthermore, soil and vegetation management practices may be implemented to accumulate plant-derived organic carbon in urban soils. The potential for substantial soil-based carbon sequestration in urban environments has yet to be realised, and the varied praxis of soil carbon capture presents accreditation and regulatory challenges to the planning system which need to be resolved.