Simple and Accurate Representation of Cumulative Nighttime Leaf Respiratory CO2 Efflux
Year: 2024
Type: article
Abstract: ABSTRACT 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.
Source: Global Change Biology
DOI: 10.1111/gcb.17529
Authors: Dan Bruhn, Martijn Slot, Lina M. Mercado
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
SDG: Climate action
Open Access status: hybrid
Estimated APC paid: $4,330
Awards: G2043934909, G3617712508, Can tropical Montane forest Acclimate to high temperature? Montane-Acclim, G4767365779, G6924051591, G7283041948, TerraFIRMA: Future Impacts Risks and Mitigation Actions, G8750488861, The Amazon Fertilisation Experiment (AFEX), Sensitivity of Tropical Forest to Heat Stress -Trop-Heat
OpenAlex ID: W4403403024