<br>土壤矿物相关碳和颗粒有机碳的全球周转,Nature Communications

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土壤矿物相关碳和颗粒有机碳的全球周转
Nature Communications ( IF 14.7 ) Pub Date : 2024-06-22 , DOI: 10.1038/s41467-024-49743-7
Zhenghu Zhou _{1,

2} , Chengjie Ren ₃ , Chuankuan Wang ₁ , Manuel Delgado-Baquerizo ₄ , Yiqi Luo ₅ , Zhongkui Luo ₆ , Zhenggang Du ₁ , Biao Zhu ₇ , Yuanhe Yang ₈ , Shuo Jiao ₉ , Fazhu Zhao ₁₀ , Andong Cai ₁₁ , Gaihe Yang ₃ , Gehong Wei ₉

Affiliation

College of Ecology and Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin, Heilongjiang, China.
Northeast Asia Biodiversity Research Center, Northeast Forestry University, Harbin, Heilongjiang, China.
State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
Laboratorio de Biodiversidad y Funcionamiento Ecosistémico. Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Av. Reina Mercedes, Sevilla, Spain.
School of Integrative Plant Science, Cornell University, Ithaca, NY, USA.
College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China.
Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China.
State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China.
State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China.
Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Northwest University, Xi'an, Shaanxi, China.
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China.

土壤有机碳（SOC）持久性主要受矿物保护控制，因此，土壤矿物相关（MAOC）和颗粒有机碳（POC）周转对土壤有机碳对气候变化的脆弱性有不同的影响。在这里，我们使用 8341 个观测值生成全球 MAOC 和 POC 地图，然后通过数据模型集成方法推断 MAOC 和 POC 的周转时间。全局 MAOC 和 POC 存储为\({975}_{964}^{987}\) Pg C（平均值为 5% 和 95% 分位数）和\({330}_{323}^{337}\) Pg C，而顶部计量器中的全球平均 MAOC 和 POC 周转时间分别为\({129}_{45}^{383}\) yr 和\({23}_{5}^{82}\) yr 。气候变暖引起的 MAOC 和 POC 分解加速在底土中比在表土中更大。总体而言，MAOC 和 POC 营业额的全球图集，以及 MAOC 和 POC 库存的全球分布，为地球系统模型诊断 SOC 气候变化反馈提供了基准。

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更新日期：2024-06-23

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