| Title: | Effects of soil drought and nitrogen deposition on BVOC emissions and their O(3) and SOA formation for Pinus thunbergii |
| Author(s): | Yang W; Zhang B; Wu Y; Liu S; Kong F; Li L; |
| Address: | "College of Environmental Sciences and Engineering, Carbon Neutrality and Eco-Environmental Technology Innovation Center of Qingdao, Qingdao University, Qingdao, 266071, China. School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266061, China. College of Environmental Sciences and Engineering, Carbon Neutrality and Eco-Environmental Technology Innovation Center of Qingdao, Qingdao University, Qingdao, 266071, China. Electronic address: lilingyu@qdu.edu.cn" |
| DOI: | 10.1016/j.envpol.2022.120693 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "Soil drought and nitrogen (N) deposition can influence the biogenic volatile organic compound (BVOC) emissions and thereby their ozone (O(3)) and secondary organic aerosol (SOA) formation. This study addressed their single and combined effects on BVOC emissions of Pinus thunbergii by laboratory simulation experiments. The results showed that light drought (LD, 50% soil volumetric water content (VWC)) stimulated isoprene, monoterpene, sesquiterpene, and total BVOC emissions, while moderate drought (MD, 30% and 40% VWC) and severe drought (SD, 10% and 20% VWC) inhibited their emissions (except for sesquiterpene in 20% VWC). N deposition decreased other VOC emissions and increased isoprene and sesquiterpene emissions. Total BVOCs and monoterpene were stimulated in low N deposition (LN, 2 g N/(m(2).yr)) and inhibited in moderate (MN, 5 g N/(m(2).yr)) and high N deposition (HN, 10 g N/(m(2).yr)). Under combined treatment of soil drought and N deposition, total BVOC, monoterpene, and other VOC emissions were inhibited, sesquiterpene had no significant change, and isoprene emission was inhibited in MD combined treatment but promoted in SD. The O(3) formation potential (OFP) and SOA formation potential (SOAP) from the changed BVOC emissions were calculated, OFP and SOAP of BVOC emissions and their compositions varied significantly among the treatments. Our study provided theoretical basis for assessing the impact of climate change and atmospheric pollution on BVOC emissions and their contribution to the formation of secondary atmospheric pollution" |
| Keywords: | *Pinus Nitrogen Soil Droughts *Volatile Organic Compounds Aerosols Water Monoterpenes Biogenic VOCs Dynamic enclosure Emission rate Ozone formation potential (OFP) SOA formation Potential (SOAP) Stress; |
| Notes: | "MedlineYang, Weizhen Zhang, Baowen Wu, Yan Liu, Shuai Kong, Fanlong Li, Lingyu eng England 2022/11/20 Environ Pollut. 2023 Jan 1; 316(Pt 2):120693. doi: 10.1016/j.envpol.2022.120693. Epub 2022 Nov 16" |
