UV-induced carbon monoxide emission from living vegetation

被引：27

作者：

Bruhn, D. ^{[1
,2
]}

Albert, K. R. ^{[1
]}

Mikkelsen, T. N. ^{[1
]}

Ambus, P. ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark

[2] Open Univ, Ctr Earth Planetary Space & Astron Res, Milton Keynes MK7 6AA, Bucks, England

来源：

BIOGEOSCIENCES | 2013年 / 10卷 / 12期

关键词：

CO EMISSIONS; PHOTOPRODUCTION; RADIATION;

D O I：

10.5194/bg-10-7877-2013

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

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.

引用

页码：7877 / 7882

页数：6

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