Understanding the Impact of Climate Extremes on the Terrestrial Carbon Cycle: Integrating Multiple Observations and Modeling Techniques

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Biosphere/Hydrosphere/Land–Atmosphere Interactions".

Deadline for manuscript submissions: closed (23 December 2022) | Viewed by 1865

Special Issue Editors


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Guest Editor
International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
Interests: carbon cycle modeling; atmospheric inversion; climate extreme impacts; global change ecology
School of Geography and Tourism, Anhui Normal University, Wuhu 241002, China
Interests: remote sensing; forest ecology; climate change
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Special Issue Information

Dear Colleagues,

Climate extremes such as droughts and heatwaves have become unprecedentedly widespread over the globe in recent decades, posing a major threat to the stability of the carbon sink function of terrestrial ecosystems. Understanding the impacts of climate extremes on the terrestrial carbon cycle is an essential step for predicting the fate of the terrestrial carbon cycle, for which integrating multiple observations and modeling techniques is indispensable.

Multi-source observations from sensors ranging from in situ (e.g., eddy covariance flux measurements, tree ring, and field inventory) to space-borne implementations, used to measure the status of the terrestrial biosphere and the atmosphere, could provide in-depth insights regarding the impacts of climate on the terrestrial carbon cycle from multiple dimensions. Especially, recent novel Earth observations associated with environmental conditions (e.g., soil moisture and surface temperature), vegetation physiology (e.g., solar-induced chlorophyll fluorescence, vegetation water content, and plant uptake of carbon isotopes and carbonyl sulfide), and atmospheric CO2 concentrations (e.g., satellite column concentration measurements) fundamentally support the implementation of such purposes. Meanwhile, new modeling techniques (e.g., machine learning, data assimilation, atmospheric inversions, or a combination of different approaches) largely enhance our capacity to understand carbon cycle/climate change impacts and feedback. Thus, integrating multiple observations and modeling techniques would offer new insights into understanding the impacts of climate extremes on the terrestrial carbon cycle.

Here, the open-access journal Atmosphere is hosting a Special Issue to showcase the most recent achievements on the above theme. We encourage the submission of studies based on observation and modeling, especially those integrating the two. You are welcome to contribute to this Special Issue.

Dr. Wei He
Dr. Peipei Xu
Guest Editors

Manuscript Submission Information

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Keywords

  • terrestrial carbon cycle
  • climate change
  • drought and heatwaves
  • resistance, recovery and resilience
  • terrestrial carbon sink
  • regional carbon budget

Published Papers (1 paper)

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Research

17 pages, 10848 KiB  
Article
Response of Global Terrestrial Carbon Fluxes to Drought from 1981 to 2016
by Qiaoning He, Weimin Ju and Xinchuan Li
Atmosphere 2023, 14(2), 229; https://doi.org/10.3390/atmos14020229 - 23 Jan 2023
Viewed by 1566
Abstract
Precipitation plays a dominant role in regulating terrestrial carbon fluxes. In concert with global warming, aridity has been increasing during recent decades in most parts of the world. How global terrestrial carbon fluxes respond to this change, however, is still unclear. Using a [...] Read more.
Precipitation plays a dominant role in regulating terrestrial carbon fluxes. In concert with global warming, aridity has been increasing during recent decades in most parts of the world. How global terrestrial carbon fluxes respond to this change, however, is still unclear. Using a remote-sensing-driven, process-based model, the Boreal Ecosystem Productivity Simulator (BEPS), this study investigated the responses of global terrestrial carbon fluxes to meteorological drought, which were characterized by the standardized precipitation evapotranspiration index (SPEI). The results showed that the response of terrestrial carbon fluxes to drought exhibited distinguishable spatial heterogeneity. In most regions, terrestrial carbon fluxes responded strongly to drought. With an increase in annual water balance (annual precipitation minus annual potential evapotranspiration), the response of carbon fluxes to drought became weaker. The lagged time of terrestrial carbon fluxes responding to drought decreased with the increasing strength of carbon fluxes in response to drought. The sensitivity of terrestrial carbon fluxes to drought also showed noticeable spatial heterogeneity. With an increase in annual water balance, the sensitivity first increased and then decreased. Terrestrial carbon fluxes exhibited the highest sensitivity to drought in semi-arid areas. Full article
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