Technosols, which are soils strongly impacted by human activity, are becoming increasingly common. To date, there has been little study of the share of the global soil carbon budget made up of carbon in Technosols or the contribution of Technosols to climate mitigation. A meta-analysis is proposed based on the analysis of 130 articles and consisting of the extraction of 953 observations on soil organic carbon (SOC) content of Technosols and related factors (e.g., climate, land use, nitrogen and bulk density). The mean SOC content of Technosols is 4.3% and SOC stock is 73.2 t C ha⁻¹ for the 0–30-cm layer. The SOC content does not decrease significantly with depth and it shows high variability, even within the same depth layers. Climate has a significant effect on SOC content, especially in the upper soil layer. Land use (mainly urban, mining or industrial) shows a significant effect when considering all depths and is related to the nature of the constitutive artefacts. Unlike natural and agricultural soils, no correlation is observed with the depth nor the nature and presence of vegetation. This meta-analysis highlights the strong originality and diversity of Technosols, compared to other soils. Compared to other existing Reference Soil Groups, they are undoubtedly among the soils with the highest carbon stocks per unit area in the pedosphere.

中文翻译：

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Technosols 中碳含量和储量的荟萃分析以及主要控制因素的确定

受人类活动强烈影响的土壤技术溶胶正变得越来越普遍。迄今为止，很少有关于由 Technosols 中的碳构成的全球土壤碳预算份额或 Technosols 对减缓气候变化的贡献的研究。基于对 130 篇文章的分析，提出了一项荟萃分析，其中包括提取 953 个关于 Technosols 的土壤有机碳 (SOC) 含量和相关因素（例如，气候、土地利用、氮和容重）的观测值。Technosols 的平均 SOC 含量为 4.3%，SOC 库存为 73.2 t C ha ^-1对于 0-30 厘米层。SOC 含量不会随深度显着降低，并且即使在相同深度层内也表现出高度可变性。气候对 SOC 含量有显着影响，尤其是在上层土壤中。在考虑所有深度时，土地利用（主要是城市、采矿或工业）显示出显着影响，并且与构成人工制品的性质有关。与自然和农业土壤不同，没有观察到与植被的深度、性质和存在的相关性。与其他土壤相比，这项荟萃分析突出了 Technosols 的强烈原创性和多样性。与现有的其他参考土壤组相比，它们无疑是土壤中单位面积碳储量最高的土壤之一。