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Functional convergence of biosphere-atmosphere interactions in response to meteorology

Krich, Christopher and Migliavacca, Mirco and Miralles, Diego G and Kraemer, Guido and El-Madany, Tarek S and Reichstein, Markus and Runge, Jakob and Mahecha, Miguel (2021) Functional convergence of biosphere-atmosphere interactions in response to meteorology. Biogeosciences Discussions. Copernicus Publications. ISSN 1810-6277. (Submitted)

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Abstract

Understanding the dependencies of the terrestrial carbon and water cycle is a prerequisite to anticipate their be- haviour under climate change conditions. However, terrestrial ecosystems and the atmosphere interact via a multitude of vari- ables, time- and space scales. Additionally the interactions might differ among vegetation types or climatic regions. Today, novel algorithms aim to disentangle the causal structure behind such interaction from empirical data. Visualising the estimated structure in networks, the nodes represent relevant meteorological determinants and land-surface fluxes, and the links dependencies among them possibly including their lag and strength. Here we show that biosphere-atmosphere interactions are strongly shaped by meteorological conditions. For example, we find that temperate and high latitude ecosystems during peak productivity exhibit very similar biosphere-atmosphere interaction networks as tropical forests. In times of anomalous conditions like drought though, both ecosystems behave more like Mediterranean ecosystems during their dry season. Our results demonstrate that ecosystems from different climate or vegetation types have similar biosphere-atmosphere interactions if their meteorological conditions are similar. We anticipate our analysis to foster the use of network approaches as they allow a more comprehensive understanding of the state of ecosystem functioning. Long term or even irreversible changes in network structure are rare and thus can be indicators of fundamental functional ecosystem shifts.

Item URL in elib:https://elib.dlr.de/139613/
Document Type:Article
Title:Functional convergence of biosphere-atmosphere interactions in response to meteorology
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Krich, ChristopherUNSPECIFIEDUNSPECIFIED
Migliavacca, Mircommiglia (at) bgc-jena.mpg.deUNSPECIFIED
Miralles, Diego GUNSPECIFIEDUNSPECIFIED
Kraemer, GuidoUNSPECIFIEDUNSPECIFIED
El-Madany, Tarek SUNSPECIFIEDUNSPECIFIED
Reichstein, MarkusMax-Planck-Institute for Biogeochemistry, Jena, Germanyhttps://orcid.org/0000-0001-5736-1112
Runge, JakobJakob.Runge (at) dlr.deUNSPECIFIED
Mahecha, MiguelMPI Biogeochemistryhttps://orcid.org/0000-0003-3031-613X
Date:2021
Journal or Publication Title:Biogeosciences Discussions
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Publisher:Copernicus Publications
ISSN:1810-6277
Status:Submitted
Keywords:none
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Jena
Institutes and Institutions:Institute of Data Science
Deposited By: Käding, Christoph
Deposited On:14 Dec 2020 16:03
Last Modified:14 Dec 2020 16:03

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