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Relative importance...
Relative importance of climatic variables, soil properties and plant traits to spatial variability in net CO2 exchange across global forests and grasslands
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- Zhou, Huimin (författare)
- East China Normal University
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- Shao, Junjiong (författare)
- East China Normal University
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- Liu, Huiying (författare)
- East China Normal University
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- Du, Zhenggang (författare)
- East China Normal University
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- Zhou, Lingyan (författare)
- East China Normal University
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- Liu, Ruiqiang (författare)
- East China Normal University
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- Bernhofer, Christian (författare)
- Dresden University of Technology
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- Grünwald, Thomas (författare)
- Dresden University of Technology
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- Dušek, Jiří (författare)
- Academy of Sciences of the Czech Republic
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- Montagnani, Leonardo (författare)
- Free University of Bozen-Bolzano
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- Tagesson, Torbern (författare)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,University of Copenhagen
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- Black, Thomas Andrew (författare)
- University of British Columbia
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- Jassal, Rachhpal (författare)
- University of British Columbia
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- Woodgate, William (författare)
- CSIRO Land & Water Flagship,University of Queensland
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- Biraud, Sébastien (författare)
- Lawrence Berkeley National Laboratory
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- Varlagin, Andrej (författare)
- Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences
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- Mammarella, Ivan (författare)
- University of Helsinki
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- Gharun, Mana (författare)
- ETH Zürich
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- Shekhar, Ankit (författare)
- ETH Zürich
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- Buchmann, Nina (författare)
- ETH Zürich
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- Manco, Antonio (författare)
- CNR Institute for Agricultural and Forestry Systems in the Mediterranean (CNR-ISAFOM)
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- Magliulo, Enzo (författare)
- CNR Institute for Agricultural and Forestry Systems in the Mediterranean (CNR-ISAFOM)
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- Billesbach, Dave (författare)
- University of Nebraska - Lincoln
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- Silberstein, Richard P. (författare)
- University of Western Australia, Crawley,Edith Cowan University
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- Ohta, Takeshi (författare)
- Nagoya University
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- Yu, Guirui (författare)
- Chinese Academy of Sciences,University of the Chinese Academy of Sciences
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- Chen, Zhi (författare)
- Chinese Academy of Sciences,University of the Chinese Academy of Sciences
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- Zhang, Yiping (författare)
- Chinese Academy of Sciences
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- Zhou, Xuhui (författare)
- East China Normal University,Tongji University
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(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- Engelska.
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Ingår i: Agricultural and Forest Meteorology. - : Elsevier BV. - 0168-1923. ; 307
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Compared to the well-known drivers of spatial variability in gross primary productivity (GPP), the relative importance of climatic variables, soil properties and plant traits to the spatial variability in net ecosystem exchange of CO2 between terrestrial ecosystem and atmosphere (NEE) is poorly understood. We used principal component regression to analyze data from 147 eddy flux sites to disentangle effects of climatic variables, soil properties and plant traits on the spatial variation in annual NEE and its components (GPP and ecosystem respiration (RE)) across global forests and grasslands. Our results showed that the largest unique contribution (proportion of variance only explained by one class of variables) to NEE variance came from climatic variables for forests (24%-30%) and soil properties for grasslands (41%-54%). Specifically, mean annual precipitation and potential evapotranspiration were the most important climatic variables driving forest NEE, whereas available soil water capacity, clay content and cation exchange capacity mainly influenced grassland NEE. Plant traits showed a small unique contribution to NEE in both forests and grasslands. However, leaf phosphorus content strongly interacted with soil total nitrogen density and clay content, and these combined factors represented a major contribution for grassland NEE. For GPP and RE, the majority of spatial variance was attributed to the common contribution of climate, soil and plant traits (50% - 62%, proportion of variance explained by more than one class of variables), rather than their unique contributions. Interestingly, those factors with only minor influences on GPP and RE variability (e.g., soil properties) have significant contributions to the spatial variability in NEE. Such emerging factors and the interactions between climatic variables, soil properties and plant traits are not well represented in current terrestrial biosphere models, which should be considered in future model improvement to accurately predict the spatial pattern of carbon cycling across forests and grasslands globally.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Nyckelord
- Carbon
- Climatic variables
- Net ecosystem exchange
- Plant traits
- Soil properties
- Spatial variability
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Zhou, Huimin
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Shao, Junjiong
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Liu, Huiying
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Du, Zhenggang
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Zhou, Lingyan
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Liu, Ruiqiang
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Bernhofer, Chris ...
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Grünwald, Thomas
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Dušek, Jiří
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Montagnani, Leon ...
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Tagesson, Torber ...
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Black, Thomas An ...
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Jassal, Rachhpal
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Woodgate, Willia ...
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Biraud, Sébastie ...
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Varlagin, Andrej
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Mammarella, Ivan
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Gharun, Mana
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Shekhar, Ankit
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Buchmann, Nina
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Manco, Antonio
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Magliulo, Enzo
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Billesbach, Dave
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Silberstein, Ric ...
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Ohta, Takeshi
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Yu, Guirui
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Chen, Zhi
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Zhang, Yiping
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Zhou, Xuhui
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