Global Simulation and Evaluation of Soil Organic Matter and Microbial Carbon and Nitrogen Stocks Using the Microbial Decomposition Model ORCHIMIC v2.0
文献类型：期刊论文
| 作者 | Huang, Y.1,3; Guenet, B.1,4; Wang, Y. L.1,2; Ciais, P.1 |
| 刊名 | GLOBAL BIOGEOCHEMICAL CYCLES
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 35期号:5页码:20 |
| ISSN号 | 0886-6236 |
| DOI | 10.1029/2020GB006836 |
| 通讯作者 | Huang, Y.(huangysmile@foxmail.com) ; Guenet, B.(betrand.guenet@ens.fr) |
| 英文摘要 | Soils contain the largest amount of land carbon, even a small change of this pool can significantly affect atmospheric CO2 and climate change. A good representation of soil organic carbon (SOC) dynamics in Earth system models is therefore crucial to predict future climate change. The dynamics of SOC is largely driven by microbial activities and modulated by N cycles. Nevertheless, very few models have explicitly represented soil microorganisms and N cycles integrated at global scale. Here, we present an update of the microbial-mediated ORCHIMIC model and its application to simulate global gridded SOC stocks, microbial biomass, soil C/N ratio, microbial C/N ratio, and heterotrophic respiration. This is a new attempt to model SOC dynamics with an explicit microbial representation with N dynamics applied at global scale. The model shows relatively good performance in reproducing global SOC and microbial biomass C. The spatial distributions of soil and microbial C/N ratios were not well reproduced because they are sensitive to mineral nitrogen availability controlled by plant uptake, which is not explicitly represented in the model. However, similar relationship between C/N ratios of microbes and soil as observation demonstrated the potential of the model to reproduce global C/N ratios for both microbe and soil pools. Dynamic carbon use efficiency modulated by substrate C/N ratio, consistent with observation, were well represented by mechanistic including microbial dynamics. Modeled suppressed microbial biomass growth under warming climate indicating a weaker positive feedback between soil C pool and climate compared to that predicted by traditional Earth system models. |
| WOS关键词 | LAND-SURFACE MODEL ; EARTH SYSTEM MODELS ; ATMOSPHERIC CO2 ; PHOSPHORUS ; DYNAMICS ; RESPIRATION ; BIOMASS ; STOICHIOMETRY ; LIMITATION ; RESPONSES |
| 资助项目 | National Key R&D Program of China[2020YFC1806700] ; European Research Council through the Synergy grant[ERC-2013- SyG610028] ; National Natural Science Foundation of China[41907313] ; National Natural Science Foundation of China[41730646] ; Science and Technology Commission of Shanghai Municipality[19ZR1415100] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000655225100001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Key R&D Program of China ; European Research Council through the Synergy grant ; National Natural Science Foundation of China ; Science and Technology Commission of Shanghai Municipality |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/163943]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Huang, Y.; Guenet, B. |
| 作者单位 | 1.Univ Paris Saclay, Lab Sci Climat & Environm, CEA CNRS UVSQ, LSCE IPSL, Gif Sur Yvette, France 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China 3.East China Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Informat Sci, Shanghai, Peoples R China 4.PSL Res Univ, CNRS, IPSL, Lab Geol,UMR 8538,Ecole Normale Super, Paris, France |
| 推荐引用方式 GB/T 7714 | Huang, Y.,Guenet, B.,Wang, Y. L.,et al. Global Simulation and Evaluation of Soil Organic Matter and Microbial Carbon and Nitrogen Stocks Using the Microbial Decomposition Model ORCHIMIC v2.0[J]. GLOBAL BIOGEOCHEMICAL CYCLES,2021,35(5):20. |
| APA | Huang, Y.,Guenet, B.,Wang, Y. L.,&Ciais, P..(2021).Global Simulation and Evaluation of Soil Organic Matter and Microbial Carbon and Nitrogen Stocks Using the Microbial Decomposition Model ORCHIMIC v2.0.GLOBAL BIOGEOCHEMICAL CYCLES,35(5),20. |
| MLA | Huang, Y.,et al."Global Simulation and Evaluation of Soil Organic Matter and Microbial Carbon and Nitrogen Stocks Using the Microbial Decomposition Model ORCHIMIC v2.0".GLOBAL BIOGEOCHEMICAL CYCLES 35.5(2021):20. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。