TY  - JOUR
A1  - Edtbauer, Achim
A1  - Pfannerstill, Eva Y.
A1  - Pires Florentino, Ana Paula
A1  - Barbosa, Cybelli G. G.
A1  - Rodriguez-Caballero, Emilio
A1  - Zannoni, Nora
A1  - Alves, Rodrigo P.
A1  - Wolff, Stefan
A1  - Tsokankunku, Anywhere
A1  - Aptroot, André
A1  - de Oliveira Sá, Marta
A1  - de Araújo, Alessandro C.
A1  - Sörgel, Matthias
A1  - de Oliveira, Sylvia Mota
A1  - Weber, Bettina
A1  - Williams, Jonathan
T1  - Cryptogamic organisms are a substantial source and sink for volatile organic compounds in the Amazon region
Y1  - 2021-12-21
VL  - 2
IS  - 1
JF  - Communications Earth & Environment
DO  - 10.1038/s43247-021-00328-y
PB  - Nature Publishing Group UK
N2  - Cryptogamic organisms such as bryophytes and lichens cover most surfaces within tropical forests, yet their impact on the emission of biogenic volatile organic compounds is unknown. These compounds can strongly influence atmospheric oxidant levels as well as secondary organic aerosol concentrations, and forest canopy leaves have been considered the dominant source of these emissions. Here we present cuvette flux measurements, made in the Amazon rainforest between 2016–2018, and show that common bryophytes emit large quantities of highly reactive sesquiterpenoids and that widespread lichens strongly uptake atmospheric oxidation products. A spatial upscaling approach revealed that cryptogamic organisms emit sesquiterpenoids in quantities comparable to current canopy attributed estimates, and take up atmospheric oxidation products at rates comparable to hydroxyl radical chemistry. We conclude that cryptogamic organisms play an important and hitherto overlooked role in atmospheric chemistry above and within tropical rainforests.
N2  - Cryptogamic organisms such as bryophytes and lichens contribute substantially to emissions of secondary organic aerosol precursors as well as to the uptake of atmospheric oxidation products over the Amazon rainforest, suggest measurements at a remote Amazon rainforest site.
UR  - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11305
ER  -