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Large estragole fluxes from oil palms in Borneo
Citation:
Misztal, P. K., S. M. Owen, A. B. Guenther, R. Rasmussen, C. D. Geron, P. Harley, G. J. Phillips, A. Ryan, D. P. Edwards, C. N. Hewitt, E. Nemitz, J. Siong, M. R. Heal, AND J. N. Cape. Large estragole fluxes from oil palms in Borneo. Atmospheric Chemistry and Physics Discussions. Copernicus Gesellschaft mbH, Gottingen, Germany, 10(1):1517-1557, (2010).
Impact/Purpose:
post publication review of journal article
Description:
During two field campaigns (OP3 and ACES), which ran in Borneo in 2008, we measured large emissions of estragole in ambient air above oil palm canopies flower enclosures. However, we did not detect this compound at a nearby rainforest. Estragole is a known attractant of the African oil palm weevil, which pollinates oil palms. There has been recent interest in the biogenic emissions of estragole but it is normally not included in atmospheric models of biogenic emissions and atmospheric chemistry despite its relatively high potential for secondary organic aerosol formation from photooxidation and high reactivity with OH radical. We report the first direct canopy-scale measurements of estragole fluxes from tropical oil palms by the virtual disjunct eddy covariance technique and compare them with previously reported data for estragole emissions from Ponderosa pine. Estragole flux can be parameterised using a combination of a modified G06 algorithm for emission and a canopy resistance approach for deposition.
URLs/Downloads:
NRMRL RTP P 1053.PDF (PDF, NA pp, 1070 KB, about PDF)Large Estragole Fluxes from Oil Palms in Borneo
