Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-6073-2017 |
Ozone and haze pollution weakens net primary productivity in China | |
Yue, Xu1; Unger, Nadine2; Harper, Kandice3; Xia, Xiangao4; Liao, Hong5; Zhu, Tong6; Xiao, Jingfeng7; Feng, Zhaozhong8; Li, Jing9 | |
2017-05-16 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; England; USA |
英文摘要 | Atmospheric pollutants have both beneficial and detrimental effects on carbon uptake by land ecosystems. Surface ozone (O-3) damages leaf photosynthesis by oxidizing plant cells, while aerosols promote carbon uptake by increasing diffuse radiation and exert additional influences through concomitant perturbations to meteorology and hydrology. China is currently the world's largest emitter of both carbon dioxide and short-lived air pollutants. The land ecosystems of China are estimated to provide a carbon sink, but it remains unclear whether air pollution acts to inhibit or promote carbon uptake. Here, we employ Earth system modeling and multiple measurement datasets to assess the separate and combined effects of anthropogenic O-3 and aerosol pollution on net primary productivity (NPP) in China. In the present day, O-3 reduces annual NPP by 0.6 PgC (14 %) with a range from 0.4 Pg C (low O-3 sensitivity) to 0.8 Pg C (high O-3 sensitivity). In contrast, aerosol direct effects increase NPP by 0.2 Pg C (5 %) through the combination of diffuse radiation fertilization, reduced canopy temperatures, and reduced evaporation leading to higher soil moisture. Consequently, the net effects of O-3 and aerosols decrease NPP by 0.4 PgC (9 %) with a range from 0.2 Pg C (low O-3 sensitivity) to 0.6 Pg C (high O-3 sensitivity). However, precipitation inhibition from combined aerosol direct and indirect effects reduces annual NPP by 0.2 Pg C (4 %), leading to a net air pollution suppression of 0.8 Pg C (16 %) with a range from 0.6 PgC (low O-3 sensitivity) to 1.0 Pg C (high O-3 sensitivity). Our results reveal strong dampening effects of air pollution on the land carbon uptake in China today. Following the current legislation emission scenario, this suppression will be further increased by the year 2030, mainly due to a continuing increase in surface O-3. However, the maximum technically feasible reduction scenario could drastically relieve the current level of NPP damage by 70% in 2030, offering protection of this critical ecosystem service and the mitigation of long-term global warming. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401432200006 |
WOS关键词 | DIFFUSE-RADIATION ; TROPOSPHERIC OZONE ; TERRESTRIAL ECOSYSTEMS ; CARBON SEQUESTRATION ; GLOBAL DISTRIBUTION ; PLANT PRODUCTIVITY ; CLIMATE-CHANGE ; PHOTOSYNTHESIS ; EXCHANGE ; MODEL |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/18349 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Climate Change Res Ctr, Beijing 100029, Peoples R China; 2.Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QE, Devon, England; 3.Yale Univ, Sch Forestry & Environm Studies, 195 Prospect St, New Haven, CT 06511 USA; 4.Chinese Acad Sci, Inst Atmospher Phys, Lab Middle Atmosphere & Global Environm Observat, Beijing 100029, Peoples R China; 5.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China; 6.Peking Univ, Coll Environm Sci & Engn, State Key Lab Environm Simulat & Pollut Control, Beijing 100871, Peoples R China; 7.Univ New Hampshire, Earth Syst Res Ctr, Inst Study Earth Oceans & Space, Durham, NH 03824 USA; 8.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China; 9.Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China |
推荐引用方式 GB/T 7714 | Yue, Xu,Unger, Nadine,Harper, Kandice,et al. Ozone and haze pollution weakens net primary productivity in China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(9). |
APA | Yue, Xu.,Unger, Nadine.,Harper, Kandice.,Xia, Xiangao.,Liao, Hong.,...&Li, Jing.(2017).Ozone and haze pollution weakens net primary productivity in China.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(9). |
MLA | Yue, Xu,et al."Ozone and haze pollution weakens net primary productivity in China".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.9(2017). |
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