Emission of isoprenoids from natural vegetation in the Beijing region (Northern China) |
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Authors: | Francesco Loreto Mauro Centritto Rita Baraldi Francesca Rapparini Shirong Liu |
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Affiliation: | 1. CNR-Istituto di Biochimica ed Ecofisiologia Vegetali , Via Salaria Km 29,300, Monterotondo Scalo (Roma), 00016, Italy;2. CNR-Istituto di Ecofisiologia delle Piante Arboree da Frutto , via Gobetti 101, Bologna, 40129, Italy;3. Chinese Academy of Forestry , Beijing, China |
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Abstract: | ABSTRACT A survey was conducted to identify plants emitting isoprenoids in the Beijing area which could potentially contribute to smog episodes when combined with anthropogenic pollutants. The emission pattern was similar to that observed in the previously surveyed boreal ecosystems (Europe, North America). Most deciduous oaks are strong isoprene emitters; however, some of them do not emit isoprenoids and are therefore more suitable for the urban environment of Beijing. No emission of monoterpenes was found in Chinese oaks, and this trait seems therefore confined to the Mediterranean environment. The emission of isoprene was found in poplars and in some of the bamboo widespread in city parks and in the riparial vegetation surrounding the city. Chinese pine species emit monoterpenes when wounded, and the emission is not qualitatively different among species. Pinus tabulaeformis, one of the most important trees in China, is a low emitter compared to other pine species. |
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Keywords: | Isoprene monoterpenes Pinus sp. Quercus sp. |
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