Simple and accurate representation of cumulative nighttime leaf respiratory CO2 efflux

Bruhn, Dan; Slot, Martijn; Mercado, Lina M. ORCID: https://orcid.org/0000-0003-4069-0838. 2024 Simple and accurate representation of cumulative nighttime leaf respiratory CO2 efflux. Global Change Biology, 30 (10), e17529. 6, pp. 10.1111/gcb.17529

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Official URL: http://dx.doi.org/10.1111/gcb.17529

Abstract/Summary

Leaf respiratory carbon loss decreases independent of temperature as the night progresses. Detailed nighttime measurements needed to quantify cumulative respiratory carbon loss at night are challenging under both lab and field conditions. We provide a simple yet accurate approach to represent variation in nighttime temperature-independent leaf respiratory CO2 efflux in environments with both stable and fluctuating temperatures, which requires no detailed measurements throughout the night. We demonstrate that the inter- and intraspecific variation in the cumulative leaf respiratory CO2 efflux at constant temperature, at any length of night, scales linearly with the inter- and intraspecific variation in initial measurement of leaf respiratory CO2 efflux at the same temperature at the beginning of the night. This approach informs large-scale predictions of cumulative leaf respiratory CO2 efflux, which is needed to understand plant carbon economy in global change studies as well as in global modeling and eddy covariance monitoring of the land–atmosphere exchange of CO2.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1111/gcb.17529
UKCEH and CEH Sections/Science Areas:	Hydro-climate Risks (Science Area 2017-)
ISSN:	1354-1013
Additional Information. Not used in RCUK Gateway to Research.:	Open Access paper - full text available via Official URL link.
Additional Keywords:	CO 2, fieldwork, interspecific variation, intraspecific variation, lab work, leaf, measurements, modelling, respiration
NORA Subject Terms:	Ecology and Environment Biology and Microbiology
Related URLs:	Dataset
Date made live:	24 Oct 2024 11:17 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/538291

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1111/gcb.17529

UKCEH and CEH Sections/Science Areas:

Hydro-climate Risks (Science Area 2017-)

ISSN:

1354-1013

Additional Information. Not used in RCUK Gateway to Research.:

Open Access paper - full text available via Official URL link.

Additional Keywords:

CO 2, fieldwork, interspecific variation, intraspecific variation, lab work, leaf, measurements, modelling, respiration