| Title: | Photosynthesis and Related Physiological Parameters Differences Affected the Isoprene Emission Rate among 10 Typical Tree Species in Subtropical Metropolises |
| Author(s): | Lyu J; Xiong F; Sun N; Li Y; Liu C; Yin S; |
| Address: | "School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China. Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, Shanghai 200240, China. Yangtze River Delta Ecology & Environmental Change and Control Research Station, Ministry of Education, Shanghai 200240, China. Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, CA 94305, USA. Key Laboratory for Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai 200240, China" |
| Journal Title: | Int J Environ Res Public Health |
| ISSN/ISBN: | 1660-4601 (Electronic) 1661-7827 (Print) 1660-4601 (Linking) |
| Abstract: | "Volatile organic compound (VOCs) emission is an important cause of photochemical smog and particulate pollution in urban areas, and urban vegetation has been presented as an important source. Different tree species have different emission levels, so adjusting greening species collocation is an effective way to control biogenic VOC pollution. However, there is a lack of measurements of tree species emission in subtropical metropolises, and the factors influencing the species-specific differences need to be further clarified. This study applied an in situ method to investigate the isoprene emission rates of 10 typical tree species in subtropical metropolises. Photosynthesis and related parameters including photosynthetic rate, intercellular CO(2) concentration, stomatal conductance, and transpiration rate, which can influence the emission rate of a single species, were also measured. Results showed Salix babylonica always exhibited a high emission level, whereas Elaeocarpus decipiens and Ligustrum lucidum maintained a low level throughout the year. Differences in photosynthetic rate and stomatal CO(2) conductance are the key parameters related to isoprene emission among different plants. Through the establishment of emission inventory and determination of key photosynthetic parameters, the results provide a reference for the selection of urban greening species, as well as seasonal pollution control, and help to alleviate VOC pollution caused by urban forests" |
| Keywords: | *Air Pollutants Butadienes Hemiterpenes/analysis Photosynthesis *Trees BVOCs Tof-ms isoprene tree species; |
| Notes: | "MedlineLyu, Junyao Xiong, Feng Sun, Ningxiao Li, Yiheng Liu, Chunjiang Yin, Shan eng Research Support, Non-U.S. Gov't Switzerland 2021/01/28 Int J Environ Res Public Health. 2021 Jan 22; 18(3):954. doi: 10.3390/ijerph18030954" |
