Methanol emissions from maize: Ontogenetic dependence to varying light conditions and guttation as an additional factor constraining the flux

Mozaffar, Ahsan; Schoon, Niels; Digrado, Anthony; Bachy, Aurélie; Delaplace, Pierre; Jardin, Patrick du; Fauconnier, Marie‐Laure; Aubinet, Marc; Heinesch, Bernard; Amelynck, Crist

doi:10.1016/j.atmosenv.2016.12.041

Cited by 20 publications

(24 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In dry periods, however, methanol emissions seemed to develop similar to those of other VOCs, indicating a temperature dependency related to biological processes and their biosynthesis as has been recently pointed out by Mozaffar et al . (). Whereas ethanol emissions are the results of alcoholic sugar fermentation generally originating from roots (Kreuzwieser et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…() followed up by the recent work of Mozaffar et al . () who measured two cultivars for each phenological developmental stage. Generally, all studies have in common that BVOC emissions showed a large diurnal and daily variability similar to the present work.…”

Section: Discussionmentioning

confidence: 99%

“…We observed rather low BVOC fluxes during the end of the vegetative growth phase as well as during the end of the fruit development until plant ripening. The change in methanol flux from a net ecosystem emission to a net deposition was very likely caused by its high water solubility as it coincides with precipitation events (Niinemets et al, 2004).…”

Section: Absolute Fluxesmentioning

confidence: 99%

See 2 more Smart Citations

Net ecosystem fluxes and composition of biogenic volatile organic compounds over a maize field–interaction of meteorology and phenological stages

et al. 2017

View full text Add to dashboard Cite

Bioenergy crop production is rapidly expanding in Europe, and the potential emissions of biogenic volatile organic compounds (BVOCs) might change the chemical composition of the atmosphere, influencing in turn air quality and regional climate. The environmental impacts of bioenergy crops on air chemistry are difficult to assess due to a lack of accurate field observations. Therefore, we studied BVOC fluxes from a bioenergy maize field in North-Eastern Germany throughout the entire reproductive growth stage of the plants. Combining automated large chambers and proton transfer reaction mass spectrometry (PTR-MS), we successfully measured fluxes of the highly reactive hydrocarbons monoterpenes (MTs) and sesquiterpenes (SQTs), together with several other BVOCs, including alcohols, aldehydes, ketones, benzenoids, and fatty acid derivatives. Emissions of MTs and SQTs were relatively high (17.0% and 3.6% of total mean molar BVOC emission, respectively) compared to methanol emissions (17.6%). Seasonal MT and SQT fluxes were clearly associated with the flowering phase, originating mainly from the flowering tissues as shown in additional laboratory experiments. From the observations of CO 2 net ecosystem exchange and evapotranspiration rates, we could exclude heat and drought stress-induced BVOC emissions. Standard emission factors calculated for all compounds, chemical groups, and growth stages, showed that the temperature dependency of volatile terpenoid fluxes decreased distinctively with proceeding development stage. The results indicate that emissions from large-scale bioenergy maize fields should be better differentiated and considered in regional estimates of aerosol formation. For the implementation of such relation into biogeochemical modelling, it should be considered that not only seasonal weather development but also phenological growth stages are determining the BVOC patterns and emission potentials.

show abstract

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Absolute Fluxesmentioning

confidence: 99%

See 1 more Smart Citation

Net ecosystem fluxes and composition of biogenic volatile organic compounds over a maize field–interaction of meteorology and phenological stages

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The latter implies that the leaf cohort always had a share of young and expanding leaves during the growing season. Later in the growing season, methanol emission could represent other leaf degenerative processes as leaf wounding by herbivores (Portillo-Estrada et al, 2015b), rust infection (Jiang et al, 2016), or programmed leaf senescence (Mozaffar et al, 2017).…”

Section: Biological Controls Of the Emission Of Other Bvocsmentioning

confidence: 99%

“…Some of the BVOCs detected are oxygenated volatiles that are often by-products of key metabolic processes (Niinemets et al, 2014). This is the case of formic and acetic acid, acetone, formaldehyde, acetaldehyde, methanol, and ethanol (Seco et al, 2007).…”

Section: Biological Controls Of the Emission Of Other Bvocsmentioning

confidence: 99%

Contribution of volatile organic compound fluxes to the ecosystem carbon budget of a poplar short‐rotation plantation

et al. 2018

View full text Add to dashboard Cite

Biogenic volatile organic compounds (BVOCs) are major precursors of both ozone and secondary organic aerosols (SOA) in the troposphere and represent a non‐negligible portion of the carbon fixed by primary producers, but long‐term ecosystem‐scale measurements of their exchanges with the atmosphere are lacking. In this study, the fluxes of 46 ions corresponding to 36 BVOCs were continuously monitored along with the exchanges of mass (carbon dioxide and water vapor) and energy (sensible and latent heat) for an entire year in a poplar (Populus) short‐rotation crop (SRC), using the eddy covariance methodology. BVOC emissions mainly consisted of isoprene, acetic acid, and methanol. Total net BVOC emissions were 19.20 kg C ha−1 yr−1, which represented 0.63% of the net ecosystem exchange (NEE), resulting from −23.59 Mg C ha−1 yr−1 fixed as CO 2 and 20.55 Mg C ha−1 yr−1 respired as CO 2 from the ecosystem. Isoprene emissions represented 0.293% of NEE, being emitted at a ratio of 1 : 1709 mol isoprene per mol of CO 2 fixed. Based on annual ecosystem‐scale measurements, this study quantified for the first time that BVOC carbon emissions were lower than previously estimated in other studies (0.5–2% of NEE) on poplar trees. Furthermore, the seasonal and diurnal emission patterns of isoprene, methanol, and other BVOCs provided a better interpretation of the relationships with ecosystem CO 2 and water vapor fluxes, with air temperature, vapor pressure deficit, and photosynthetic photon flux density.

show abstract

Methanol exchange dynamics between a temperate cropland soil and the atmosphere

Bachy

Aubinet

Amelynck

et al. 2018

Atmospheric Environment

View full text Add to dashboard Cite

Methanol emissions from maize: Ontogenetic dependence to varying light conditions and guttation as an additional factor constraining the flux

Cited by 20 publications

References 50 publications

Net ecosystem fluxes and composition of biogenic volatile organic compounds over a maize field–interaction of meteorology and phenological stages

Net ecosystem fluxes and composition of biogenic volatile organic compounds over a maize field–interaction of meteorology and phenological stages

Contribution of volatile organic compound fluxes to the ecosystem carbon budget of a poplar short‐rotation plantation

Methanol exchange dynamics between a temperate cropland soil and the atmosphere

Contact Info

Product

Resources

About