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Air and Surface Temperatures Differently Drive Terrestrial Carbon and Water Cycles in the High Latitudes

Tang, Jing LU orcid ; Chen, Shouzhi LU ; Martín Belda, David ; Rinnan, Riikka LU ; Körner, Christian and Fu, Yongshuo H. (2024) In Geophysical Research Letters 51(19).
Abstract

High-latitude vegetation experience different temperatures than the ambient air temperature. While lacking a regional plant temperature product, we drove the dynamic ecosystem model, LPJ-GUESS, with widely used ERA5-land surface temperature (Tsurf, at radiative equilibrium) and air temperature to understand ecosystem process responses to these two temperatures. We show that tundra plants' growth is stimulated by warmer Tsurf in the summer, but in the boreal forests, colder Tsurf in the non-summer months constrains leaf development and enzyme activity the following growing season. Tsurf drives higher productivity of tundra plant individuals but leads to less productive individuals in the boreal... (More)

High-latitude vegetation experience different temperatures than the ambient air temperature. While lacking a regional plant temperature product, we drove the dynamic ecosystem model, LPJ-GUESS, with widely used ERA5-land surface temperature (Tsurf, at radiative equilibrium) and air temperature to understand ecosystem process responses to these two temperatures. We show that tundra plants' growth is stimulated by warmer Tsurf in the summer, but in the boreal forests, colder Tsurf in the non-summer months constrains leaf development and enzyme activity the following growing season. Tsurf drives higher productivity of tundra plant individuals but leads to less productive individuals in the boreal forest, although with compensatory changes (almost 68%) in vegetation structure. We demonstrate the importance of forcing temperature in simulating high-latitude ecosystem processes and call for a community effort to measure plant temperatures across canopy heights and seasons to reduce uncertainties in estimating high-latitude plant responses and feedback to climate.

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Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
leaf energy balance, plant-experienced temperature, primary productivity, temperature decoupling, thermal conditions, vegetation structure
in
Geophysical Research Letters
volume
51
issue
19
article number
e2024GL110652
publisher
American Geophysical Union (AGU)
external identifiers
  • scopus:85205803486
ISSN
0094-8276
DOI
10.1029/2024GL110652
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2024. The Author(s).
id
8537e89a-dd82-40d5-b353-912a788c5487
date added to LUP
2024-12-18 12:51:58
date last changed
2025-06-23 12:05:57
@article{8537e89a-dd82-40d5-b353-912a788c5487,
  abstract     = {{<p>High-latitude vegetation experience different temperatures than the ambient air temperature. While lacking a regional plant temperature product, we drove the dynamic ecosystem model, LPJ-GUESS, with widely used ERA5-land surface temperature (T<sub>surf</sub>, at radiative equilibrium) and air temperature to understand ecosystem process responses to these two temperatures. We show that tundra plants' growth is stimulated by warmer T<sub>surf</sub> in the summer, but in the boreal forests, colder T<sub>surf</sub> in the non-summer months constrains leaf development and enzyme activity the following growing season. T<sub>surf</sub> drives higher productivity of tundra plant individuals but leads to less productive individuals in the boreal forest, although with compensatory changes (almost 68%) in vegetation structure. We demonstrate the importance of forcing temperature in simulating high-latitude ecosystem processes and call for a community effort to measure plant temperatures across canopy heights and seasons to reduce uncertainties in estimating high-latitude plant responses and feedback to climate.</p>}},
  author       = {{Tang, Jing and Chen, Shouzhi and Martín Belda, David and Rinnan, Riikka and Körner, Christian and Fu, Yongshuo H.}},
  issn         = {{0094-8276}},
  keywords     = {{leaf energy balance; plant-experienced temperature; primary productivity; temperature decoupling; thermal conditions; vegetation structure}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{19}},
  publisher    = {{American Geophysical Union (AGU)}},
  series       = {{Geophysical Research Letters}},
  title        = {{Air and Surface Temperatures Differently Drive Terrestrial Carbon and Water Cycles in the High Latitudes}},
  url          = {{http://dx.doi.org/10.1029/2024GL110652}},
  doi          = {{10.1029/2024GL110652}},
  volume       = {{51}},
  year         = {{2024}},
}