Effects of land use on surface-atmosphere exchanges of trace gases and energy in Borneo: Comparing fluxes over oil palm plantations and a rainforest

Fowler, David A. and Nemitz, Eiko G. and Misztal, Pawel K. and Di Marco, Chiara F. and Skiba, Ute M. and Ryder, James and Helfter, Carole and Neil Cape, John and Owen, Susan Margaret and Dorsey, James R. and Gallagher, Martin W. and Coyle, Mhairi and Phillips, Gavin J. and Davison, Brian M. and Langford, Ben and MacKenzie, Rob and Muller, Jennifer B. A. and Jambery Siong, and Cesare, Dari-Salisburgo and Di Carlo, Piero and Aruffo, Eleonora and Giammaria, Franco, Franco and Pyle, John A. and Nicholas, Hewitt, C. (2011) Effects of land use on surface-atmosphere exchanges of trace gases and energy in Borneo: Comparing fluxes over oil palm plantations and a rainforest. Philosophical Transactions of the Royal Society B: Biological Sciences, 366 (1582). pp. 3196-3209. ISSN 0962-8436

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Official URL: http://dx.doi.org/ 10.1098/rstb.2011.0055

Abstract

This paper reports measurements of land-atmosphere fluxes of sensible and latent heat, momentum, CO 2, volatile organic compounds (VOCs),NO,NO 2, N 2O and O 3 over a 30 mhigh rainforest canopy and a 12 m high oil palm plantation in the same region of Sabah in Borneo between April and July 2008. The daytime maximum CO 2 flux to the two canopies differs by approximately a factor of 2, 1200 mg C m -2h -1 for the oil palmand 700 mg C m -2h -1 for the rainforest, with the oil palmplantation showing a substantially greater quantum efficiency. Total VOC emissions are also larger over the oil palm than over the rainforest by a factor of 3. Emissions of isoprene from the oil palm canopy represented 80 per cent of the VOC emissions and exceeded those over the rainforest in similar light and temperature conditions by on average a factor of 5. Substantial emissions of estragole (1-allyl-4-methoxybenzene) from the oil palm plantation were detected and no trace of this VOC was detected in or above the rainforest. Deposition velocities for O 3 to the rainforest were a factor of 2 larger than over oil palm. Emissions of nitrous oxidewere larger from the soils of the oil palmplantation than from the soils of the rainforest by approximately 25 per cent. It is clear from the measurements that the large change in the species composition generated by replacing rainforest with oil palmleads to profound changes in the net exchange of most of the trace gases measured, and thus on the chemical composition of the boundary layer over these surfaces.

Item Type:Article
Uncontrolled Keywords:Carbon exchange, Micrometeorology, Oil palm, Rainforest, Trace gas emissions, 1,3 Butadiene derivative, Anisole derivative, Carbon, Carbon dioxide, Estragole, Hemiterpene, Isoprene, Methane, Nitrogen oxide, Ozone, Pentane, Volatile Organic compound, Atmospheric pollution, Biogenic emission, Carbon flux, Chemical composition, comparative study, energy flux, Land use change, Micrometeorology, monocotyledon, Plantation, Rainforest, Spatiotemporal analysis, Trace gas, Volatile organic compound, Agriculture, Altitude, Arecaceae, Article, Atmosphere, Borneo, Chemistry, Comparative study, Energy transfer, Gas, Malaysia, Photosynthesis, Physiology, Soil, Temperature, tree, Anisoles, Arecaceae, Atmosphere, Borneo, Butadienes, Carbon, Carbon dioxide, Energy transfer, Gases, Hemiterpenes, Malaysia, Methane, Nitrogen oxides, Ozone, Pentanes, Photosynthesis, Soil, Temperature, Trees, Volatile organic compounds, Borneo, East Malaysia, Malaysia, Sabah
Subjects:?? QC851-999 ??
?? QH77_T78J68 ??
ID Code:4720
Deposited By:IR Admin
Deposited On:13 Aug 2012 07:50
Last Modified:16 Feb 2015 11:09

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