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Identification and characteristic analysis of urban vegetation spectra under different dust deposition

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Abstract

Urban atmospheric environmental problems have raised increasing attention in recent years. To confirm the impact of plant dust deposition capacity on urban atmosphere and spectral characteristics, this study carried out experiments in Xuhui District and Minhang District of Shanghai, and 4 common greening species were selected as research objects. In order to explore the changes in vegetation spectral characteristics, ASD FieldSpec 3 Spectrometer and 1/10000 electronic balance were used to measure the spectral data and dust data of samples. The results show as follows: (1) 380–680 nm and 750–1350 nm are the best spectral wavelengths to analyze the influence of dust deposition on spectrum. (2) The canopy reflectance spectra of tree species decrease with the increase of dust deposition, especially in the wavelength range of 750–1350 nm. (3) The first derivative and the second derivative are beneficial to observe the spectral changes and judge the position of the red edge. The red edge position of some tree species is easy to move under the interference of dust deposition. (4) Among the four tree species, the spectrum of Osmanthus fragrans is relatively undisturbed by dust deposition, and Osmanthus fragrans is a great tree species for urban greening. The research made a foundation for the future use of spectral information to estimate vegetation dust.

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Funding

This research was funded by the National Natural Science Foundation of China, grant number 41571047.

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Conceptualization, Wenpeng Lin and Dan Wang; formal analysis, Xumiao Yu; funding acquisition, Wenpeng Lin; investigation, Xumiao Yu; methodology, Xumiao Yu and Ying Li; software, Ying Li; validation, Xumiao Yu, Ying Li, and Yue Sun; visualization, Yue Sun; writing—original draft, Wenpeng Lin and Ying Li; writing—review and editing, Xumiao Yu and Dan Wang. All authors have read and agreed to the published version of the manuscript.

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Correspondence to Wenpeng Lin or Dan Wang.

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Responsible Editor: Philippe Garrigues

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Yu, X., Lin, W., Wang, D. et al. Identification and characteristic analysis of urban vegetation spectra under different dust deposition. Environ Sci Pollut Res 30, 21299–21312 (2023). https://doi.org/10.1007/s11356-022-23704-3

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  • DOI: https://doi.org/10.1007/s11356-022-23704-3

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