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Examining the evidence for decoupling between photosynthesis and transpiration during heat extremes

De Kauwe, Martin G.; Medlyn, Belinda E.; Pitman, Andrew J.; Drake, John E.; Ukkola, Anna; Griebel, Anne; Pendall, Elise; Prober, Suzanne; Roderick, Michael

Description

Recent experimental evidence suggests that during heat extremes, wooded ecosystems may decouple photosynthesis and transpiration, reducing photosynthesis to near zero but increasing transpiration into the boundary layer. This feedback may act to dampen, rather than amplify, heat extremes in wooded ecosystems. We examined eddy covariance databases (OzFlux and FLUXNET2015) to identify whether there was field-based evidence to support these experimental findings. We focused on two types of heat...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
URI: http://hdl.handle.net/1885/157144
Source: Biogeosciences
DOI: 10.5194/bg-16-903-2019
Access Rights: Open Access

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