UV-induced carbon monoxide emission from living vegetation

TY - JOUR

T1 - UV-induced carbon monoxide emission from living vegetation

AU - Bruhn, D.

AU - Albert, K. R.

AU - Mikkelsen, T. N.

AU - Ambus, Per Lennart

PY - 2013/12/3

Y1 - 2013/12/3

N2 - The global burden of carbon monoxide (CO) is rather uncertain. In this paper we address the potential for UV-induced CO emission by living terrestrial vegetation surfaces. Real-time measurements of CO concentrations were made with a cavity-enhanced laser spectrometer connected in closed loop to either a chamber on a field of grass or a plant-leaf scale chamber. Leaves of all plant species that were examined exhibited emission of CO in response to artificial UV radiation as well as the UV component of natural solar radiation. The UV-induced rate of CO emission exhibited a low dependence on temperature, indicating an abiotic process. The emission of CO in response to the UV component of natural solar radiation was also evident at the natural grassland scale.

AB - The global burden of carbon monoxide (CO) is rather uncertain. In this paper we address the potential for UV-induced CO emission by living terrestrial vegetation surfaces. Real-time measurements of CO concentrations were made with a cavity-enhanced laser spectrometer connected in closed loop to either a chamber on a field of grass or a plant-leaf scale chamber. Leaves of all plant species that were examined exhibited emission of CO in response to artificial UV radiation as well as the UV component of natural solar radiation. The UV-induced rate of CO emission exhibited a low dependence on temperature, indicating an abiotic process. The emission of CO in response to the UV component of natural solar radiation was also evident at the natural grassland scale.

U2 - 10.5194/bg-10-7877-2013

DO - 10.5194/bg-10-7877-2013

M3 - Journal article

SN - 1726-4170

VL - 10

SP - 7877

EP - 7882

JO - Biogeosciences

JF - Biogeosciences

IS - 12

ER -