Monitoring plant response to phenanthrene using the red edge of canopy hyperspectral reflectance

MARINE POLLUTION BULLETIN

卷:86

Article

Zhu, Linhai^1,2  Chen, Zhongxin³  Wang, Jianjian^1,4  Ding, Jinzhi^4,5  Yu, Yunjiang⁶  Li, Junsheng⁶  Xiao, Nengwen⁶  Jiang, Lianhe¹  Zheng, Yuanrun¹  Rimmington, Glyn M.⁷ 

[1] Chinese Acad Sci, Inst Bot, West China Subalpine Bot Garden, Key Lab Plant Resources,Beijing Bot Garden, Beijing 100093, Peoples R China

[2] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China

[3] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Agriinformat, Beijing 100081, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China

[6] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China

[7] Wichita State Univ, Coll Liberal Arts & Sci, Global Learning Off, Wichita, KS 67260 USA

关键词: Remote sensing;    Oil pollution;    Polycyclic aromatic hydrocarbons;    Field canopy spectroscopy;    Hyperspectral;    Oil spill;   

DOI  :  10.1016/j.marpolbul.2014.06.046

来源: Elsevier

【 摘 要 】

To investigate the mechanisms and potential for the remote sensing of phenanthrene-induced vegetation stress, we measured field canopy spectra, and associated plant and soil parameters in the field controlled experiment in the Yellow River Delta of China. Two widely distributed plant communities, separately dominated by reed (Phragmites australis) and glaucous seepweed (Suaeda salsa), were treated with different doses of phenanthrene. The canopy spectral changes of plant community resulted from the decreases of biomass and foliar projective coverage, while leaf photosynthetic pigment concentrations showed no significance difference among treatments. The spectral response to phenanthrene included a flattened red edge, with decreased first derivative of reflectance. The red edge slope and area consistently responded to phenanthrene, showing a strong relationship with aboveground biomass, coverage and canopy pigments density. These results suggest the potential of remote sensing and the importance of field validation to correctly interpret the causes of the spectral changes. (C) 2014 Elsevier Ltd. All rights reserved.

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