文献类型：期刊文献

英文题名：Seasonal Emission Characteristics of Bvocs of Major Agricultural and Natural Source Vegetation in Shanghai

作者：Xiao, Zhihua[1,2]; Ni, Yuanzhi[2]; Jing, Shengao[2]; Peng, Cheng[1]; Zhang, Wei[1]; Wang, Hongli[2]

机构：[1] State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] Shanghai Academy of Environmental Sciences, Shanghai, 200233, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230325040)

语种：英文

外文关键词：Air quality - Climate change - Crops - Decision making - Fruits - Isoprene - Monoterpenes - Orchards

摘要：Due to large emissions and high chemical activity, BVOCs have a great impact on the atmospheric environment quality, climate change and carbon cycle. Improper selection and allocation of tree species may lead to increased emissions of plant BVOCs, which may exacerbate smog and ozone pollution. Accurate estimation of BVOCs emissions is essential to support air quality assessment and effective decision-making on air pollution control, where BVOCs emission rate measurement is an important basis for preparing emission inventories. In this study, the emission components and rates of BVOCs in different growing seasons of 15 species of plants in major agricultural and natural source vegetation (dominant tree species, crops, economic fruit trees, urban characteristic landscape plants) in Shanghai, China were determined by dynamic enclosure technique combined with TD-GC-MS, and the seasonal dynamic variation characteristics of emission components and rates of each vegetation were analyzed. The results showed that among the 15 plants surveyed, except for crops and economic fruit trees, the emission of BVOCs from the other plants showed strong seasonal variations, and the emission rates were the highest in summer and the lowest in winter. There were significant differences in emission compositions and rates of crops and economic fruit trees at different phenological periods (P ? 2023, The Authors. All rights reserved.