Influence of night-time light pollution on the photosynthesis and physiological characteristics of the urban plants Euonymus japonicus and Rosa hybrida

作     者：Yaxi Wei Zhen Li Jiaolong Zhang Dan Hu Yaxi Wei;Zhen Li;Jiaolong Zhang;Dan Hu

作者机构：State Key Laboratory of Urban and Regional EcologyResearch Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Simulation and Regulation of Water Cycle in River BasinChina Institute of Water Resources and Hydropower ResearchBeijing 100038China Department of Water Ecology and EnvironmentChina Institute of Water Resources and Hydropower ResearchBeijing 100038China 

出 版 物：《Ecological Processes》 (生态过程（英文）)

年 卷 期：2023年第12卷第1期

页      面：534-544页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 090706[农学-园林植物与观赏园艺] 0907[农学-林学] 08[工学] 09[农学] 

基　　金：supported by the National Natural Science Foundation of China(No.42071274) 

主　　题：Light pollution Urban plant Spectra Photosynthetic parameter Physiological characteristics 

摘      要：Background Night-time light pollution(NLP),which breaks the natural cycle of day and night,has become a new threat to urban *** are the main component of urban ecosystems and play an irreplaceable role in maintaining urban ecological *** effects of NLP with various radiation sources,including green,white,blue and red light provided by light-emitting diodes,on urban plants,Euonymus japonicus and Rosa hybrida,were examined in a block field *** NLP caused photoinhibition and oxidative stress in plants,and the extent of the deleterious effects varied with the spectral distribution of artificial light sources and *** *** and *** were more sensitive to blue and red light,which reduced the pigment concentration,net photosynthetic rate,stomatal limit value,effective quantum yield,apparent electron transfer rate and photochemical quenching coefficient,and markedly increased the malondialdehyde content and total antioxidant ***,those negative effects under white light were only present in *** and not in ***,blue and red light significantly decreased the stomatal conductance of *** contrast,green light had no significant effect on the above indices for both *** spectra did not significantly change the sugars and starch contents for either *** Considering that the spectral distribution of artificial light at night in cities has great heterogeneity and that its effect varies with plant species,it is important to arrange tree species with NLP tolerance and install appropriate light sources in urban areas based on the corresponding physiological responses and adaptation of urban trees.