DOI: 10.1029/2018GB006051
论文题名: Increased Global Land Carbon Sink Due to Aerosol-Induced Cooling
作者: Zhang Y. ; Goll D. ; Bastos A. ; Balkanski Y. ; Boucher O. ; Cescatti A. ; Collier M. ; Gasser T. ; Ghattas J. ; Li L. ; Piao S. ; Viovy N. ; Zhu D. ; Ciais P.
刊名: Global Biogeochemical Cycles
ISSN: 0886-6236
EISSN: 1944-9224
出版年: 2019
卷: 33, 期: 3 语种: 英语
英文关键词: aerosol
; anthropogenic source
; biome
; carbon cycle
; carbon sink
; climate change
; CMIP
; simulation
学科: aerosols
; climate sensitivity
; CMIP5 climate
; land carbon cycle
; NBP
; ORCHIDEE
中文摘要: Anthropogenic aerosols have contributed to historical climate change through their interactions with radiation and clouds. In turn, climate change due to aerosols has impacted the C cycle. Here we use a set of offline simulations made with the Organising Carbon and Hydrology In Dynamic Ecosystems (ORCHIDEE) land surface model driven by bias-corrected climate fields from simulations of three Coupled Model Intercomparison Project Phase 5 (CMIP5) Earth system models (ESMs; IPSL-CM5A-LR, CSIRO-Mk3.6.0, and GISS-E2-R) to quantify the climate-related impacts of aerosols on land carbon fluxes during 1860–2005. We found that climate change from anthropogenic aerosols (CCAA) globally cooled the climate, and increased land carbon storage, or cumulative net biome production (NBP), by 11.6–41.8 PgC between 1860 and 2005. The increase in NBP from CCAA mainly occurs in the tropics and northern midlatitudes, primarily due to aerosol-induced cooling. At high latitudes, cooling caused stronger decrease in gross primary production (GPP) than in total ecosystem respiration (TER), leading to lower NBP. At midlatitudes, cooling-induced decrease in TER is stronger than that of GPP, resulting in NBP increase. At low latitudes, NBP was also enhanced due to the cooling-induced GPP increase, but precipitation decline from CCAA may negate the effect of temperature. The three ESMs show large divergence in low-latitude CCAA precipitation response to aerosols, which results in considerable uncertainties in regional estimations of CCAA effects on carbon fluxes. Our results suggest that better understanding and simulation of how anthropogenic aerosols affect precipitation in ESMs is required for a more accurate attribution of aerosol effects on the terrestrial carbon cycle. © 2019. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160139
Appears in Collections: 气候变化与战略
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作者单位: Laboratoire des Sciences du Climat et de l'Environnement (LSCE), IPSL, CEA/CNRS/UVSQ, Gif sur Yvette, France; Laboratoire de Météorologie Dynamique, IPSL, Sorbonne Université/CNRS, Paris, France; Institute for Environment and Sustainability, Joint Research Centre, European Commission, Ispra, Italy; CSIRO Oceans and Atmosphere, Aspendale, VIC, Australia; International Institute for Applied Systems Analysis, Laxenburg, Austria; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China
Recommended Citation:
Zhang Y.,Goll D.,Bastos A.,et al. Increased Global Land Carbon Sink Due to Aerosol-Induced Cooling[J]. Global Biogeochemical Cycles,2019-01-01,33(3)