Investigation of natural VOC emitted from tropical vegetations in China

Article type: Research Article

Authors: WANG, Zhi-hui | BAI, Yu-hua | LIU, Zhao-rong | WANG, Xue-song | LI, Qing-jun | Klinger, L. F.

Affiliations: College of Environmental Sciences, Peking University, Beijing 100871, China | Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China | Institute of Noetic Sciences, 101 San Antonio Road, Petaluma, CA94952, USA

Note: [] Corresponding author. E-mail: yhbai@ pku.edu.cn

Abstract: Twenty-three kinds of typical plants in Xishuangbanna, the tropical area of southwestern China, were screened to estimate the emission rates of isoprene and monoterpenes by adopting bag-enclosure and curette sampling methods followed by a GC-FID analysis. It was found that the Ficus species were mainly emitting isoprene and most tropical vegetations were mainly releasing monoterpenes. The results also showed that the emissions of isoprene were affected by both temperature and PAR (Photosynthetic Active Radiation), while monoterpene emissions were mainly temperature-dependent.

Keywords: VOC, isoprene, monoterpenes, emission factor, Xishuangbanna

Journal: Journal of Environmental Sciences, vol. 17, no. 1, pp. 8-13, 2005