Interactive effects of air pollutants and atmospheric moisture stress on aspen growth and photosynthesis along an urban-rural gradient
文献类型：期刊论文
| 作者 | Wang, Zhenhua3; Wang, Chengzhang3; Wang, Bin3; Wang, Xin; Li, Jing3; Wu, Jin2; Liu, Lingli3
|
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2020 |
| 卷号 | 260 |
| 关键词 | Stem growth Ozone Nitrogen deposition Aerosol VPD |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2020.114076 |
| 文献子类 | Article |
| 英文摘要 | Atmospheric pollution could significantly alter tree growth independently and synergistically with meteorological conditions. North China offers a natural experiment for studying how plant growth responds to air pollution under different meteorological conditions, where rapid economic growth has led to severe air pollution and climate changes increase drought stress. Using a single aspen clone (Populus euramericana Neva.) as a 'phytometer', we conducted three experiments to monitor aspen leaf photosynthesis and stem growth during in situ exposure to atmospheric pollutants along the urban-rural gradient around Beijing. We used stepwise model selection to select the best multiple linear model, and we used binned regression to estimate the effects of air pollutants, atmospheric moisture stress and their interactions on aspen leaf photosynthesis and growth. Our results indicated that ozone (O-3) and vapor pressure deficit (VPD) inhibited leaf photosynthesis and stem growth. The interactive effect of O-3 and VPD resulted in a synergistic response: as the concentration of O-3 increased, the negative impact of VPD on leaf photosynthesis and stem growth became more severe. We also found that nitrogen (N) deposition had a positive effect on stem growth, which may have been caused by an increase in canopy N uptake, although this hypothesis needs to be confirmed by further studies. The positive impact of aerosol loading may be due to diffuse radiation fertilization effects. Given the decline in aerosols and N deposition amidst increases in O-3 concentration and drought risk, the negative effects of atmospheric pollution on tree growth may be aggravated in North China. In addition, the interaction between O-3 and VPD may lead to a further reduction in ecosystem productivity. (C) 2020 Elsevier Ltd. All rights reserved. |
| 学科主题 | Environmental Sciences |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1873-6424 |
| WOS关键词 | VAPOR-PRESSURE DEFICIT ; NET PRIMARY PRODUCTIVITY ; CLIMATE-CHANGE ; CARBON SEQUESTRATION ; NITROGEN DEPOSITION ; DIFFUSE-RADIATION ; TREE GROWTH ; OZONE ; FOREST ; WATER |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000528537600035 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670478, 31600389, 31522011] ; Chinese National Key Development Program for Basic Research [2017YFC0503902] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21791]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Hong Kong, Sch Biol Sci, Pokfulam, Hong Kong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhenhua,Wang, Chengzhang,Wang, Bin,et al. Interactive effects of air pollutants and atmospheric moisture stress on aspen growth and photosynthesis along an urban-rural gradient[J]. ENVIRONMENTAL POLLUTION,2020,260. |
| APA | Wang, Zhenhua.,Wang, Chengzhang.,Wang, Bin.,Wang, Xin.,Li, Jing.,...&Liu, Lingli.(2020).Interactive effects of air pollutants and atmospheric moisture stress on aspen growth and photosynthesis along an urban-rural gradient.ENVIRONMENTAL POLLUTION,260. |
| MLA | Wang, Zhenhua,et al."Interactive effects of air pollutants and atmospheric moisture stress on aspen growth and photosynthesis along an urban-rural gradient".ENVIRONMENTAL POLLUTION 260(2020). |
入库方式： OAI收割
来源：植物研究所
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