Investigating Forest Photosynthetic Response to Elevated CO2 Using UAV-Based Measurements of Solar Induced Fluorescence

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Maseyk , K , Atherton , J , Thomas , R , Wood , K , Tausz-Posch , S , MacArthur , A , Porcar-Castell , A & Tausz , M 2018 , Investigating Forest Photosynthetic Response to Elevated CO2 Using UAV-Based Measurements of Solar Induced Fluorescence . in IGARSS 2018 : 2018 IEEE International Geoscience and Remote Sensing Symposium . IEEE International Symposium on Geoscience and Remote Sensing IGARSS , IEEE , pp. 8830-8833 , 38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS) , Valencia , Spain , 22/07/2018 . https://doi.org/10.1109/IGARSS.2018.8517348

Title: Investigating Forest Photosynthetic Response to Elevated CO2 Using UAV-Based Measurements of Solar Induced Fluorescence
Author: Maseyk, Kadmiel; Atherton, Jon; Thomas, Rick; Wood, Kieran; Tausz-Posch, Sabine; MacArthur, Alasdair; Porcar-Castell, Albert; Tausz, Michael
Contributor organization: Forest Ecology and Management
Ecosystem processes (INAR Forest Sciences)
Department of Forest Sciences
Institute for Atmospheric and Earth System Research (INAR)
Viikki Plant Science Centre (ViPS)
Publisher: IEEE
Date: 2018
Language: eng
Number of pages: 4
Belongs to series: IGARSS 2018
Belongs to series: IEEE International Symposium on Geoscience and Remote Sensing IGARSS
ISBN: 978-1-5386-7151-1
978-1-5386-7150-4
978-1-5386-7149-8
ISSN: 2153-6996
DOI: https://doi.org/10.1109/IGARSS.2018.8517348
URI: http://hdl.handle.net/10138/310561
Abstract: The response of ecosystems to increasing atmospheric CO2 will have significant, but still uncertain, impacts on the global carbon and water cycles. A lot of infounation has been gained from Free Air CO2 Enrichment (FACE) experiments, but the response of mature forest ecosystems remains a significant knowledge gap. One of the challenges in FACE studies is obtaining an integrated measure of canopy photosynthesis at the scale of the treatment ring. A new remote sensing approach for measuring photosynthetic activity is based on Solar Induced Fluorescence (SIF), which is emitted by plants during photosynthesis, and is closely linked to the rates and regulation of photosynthesis. We proposed that UAV-based SIF measurements, that enable the spectrometer field of view to be targeted to the treatment ring, provide a unique opportunity for investigating the dynamics of photosynthetic responses to elevated CO2. We have successfully tested this approach in a new FACE site, located in a mature oak forest in the UK. We flew a series of flights across the experiment arrays, collecting a number of spectra. We combined these with ground-based physiological and optical measurements, and see great promise in the use of UAV-based SIF measurements in FACE and other global change experiments.
Subject: 1172 Environmental sciences
Solar Induced Fluorescence
Piccolo Doppio
global change
UAV
photosynthesis
Peer reviewed: Yes
Rights: unspecified
Usage restriction: openAccess
Self-archived version: acceptedVersion


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