Current ambient and elevated ozone effects on poplar: A global meta-analysis and response relationships

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Current ambient and elevated ozone effects on poplar: A global meta-analysis and response relationships
	Feng, Zhaozhong ; Shang, Bo ; Gao, Feng ; Calatayud, Vicent
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-03-01
卷号	654 页码:832-840
关键词	Air pollutant AOT40 Photosynthesis Poplar Productivity Exposure-response relationships Risk assessment
ISSN号	0048-9697
英文摘要	The effects of current and future elevated O-3 concentrations (e[O-3]) were investigated by a meta-analysis for poplar, a widely distributed genus in the Northern Hemisphere with global economic importance. Current [O-3] has significantly reduced CO2 assimilation rate (P-n) by 33% and total biomass by 4% in comparison with low O-3 level (charcoal-filtered air, CF). Relative to CF, an increase in future [O-3] would further enhance the reduction in total biomass by 24%, plant height by 17% and plant leaf area by 19%. Isoprene emissions could decline by 34% under e[O-3], with feedback implications in reducing the formation of secondary air pollutants including O-3 . Reduced stomatal conductance and lower foliar area might increase runoff and freshwater availability in O-3 polluted areas. Higher cumulated O-3 exposure over a threshold of 40 ppb (AOT40) induced larger reductions in P-n, total biomass and isoprene emission. Relationships of light-saturated photosynthesis rates (A(sat)), total biomass and chlorophyll content with AOT40 using a global dataset are provided. These relationships are expected to improve O-3 risk assessment and also to support the inclusion of the effect of O-3 in models addressing plantation productivity and carbon sink capacity. (C) 2018 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42708]
专题	生态环境研究中心_城市与区域生态国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Fdn CEAM, C Charles R Darwin 14,Parque Tecnol, Valencia 46980, Spain 3.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing 210044, Jiangsu, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Shuangqing Rd 18, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Feng, Zhaozhong,Shang, Bo,Gao, Feng,et al. Current ambient and elevated ozone effects on poplar: A global meta-analysis and response relationships[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,654:832-840.
APA	Feng, Zhaozhong,Shang, Bo,Gao, Feng,&Calatayud, Vicent.(2019).Current ambient and elevated ozone effects on poplar: A global meta-analysis and response relationships.SCIENCE OF THE TOTAL ENVIRONMENT,654,832-840.
MLA	Feng, Zhaozhong,et al."Current ambient and elevated ozone effects on poplar: A global meta-analysis and response relationships".SCIENCE OF THE TOTAL ENVIRONMENT 654(2019):832-840.