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Proceedings Paper

Study on the spectrum response of Cyanobacter to the Pb2+ pollution
Author(s): Xiuju Wu; Qian Cheng
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Paper Abstract

In the present paper, the spectrum response of Cyanobacter (Chlorella ulgaris) to the stress of heavy metal Pb2+ pollution was studied in three spectral ranges of the red edge position(REP) (680-740 nm), the visible spectrum (460-680 nm) and the near infrared spectrum (750-1000 nm). The results indicate that the chlorophyll level reduces with the increase of Pb2+ concentration in medium. With increase of the Pb2+ content of Chlorella ulgaris, the spectral reflectivity in visible light and the range of red edge shift ascends, the spectral reflectivity in the near infrared light decreases. The visible light, the near infrared light and the range of red edge shift are fitted much linearly with the logarithm of Pb2+ content in Chlorella ulgaris with the high squared regression coefficients of 0.8548, 0.9247 and 0.8475 respectively. The regression models are reliable to estimate the Pb2+ content in Chlorella ulgaris.

Paper Details

Date Published: 18 September 2009
PDF: 10 pages
Proc. SPIE 7472, Remote Sensing for Agriculture, Ecosystems, and Hydrology XI, 74721S (18 September 2009); doi: 10.1117/12.828457
Show Author Affiliations
Xiuju Wu, Zhejiang Gongshang Univ. (China)
Qian Cheng, Zhejiang Gongshang Univ. (China)


Published in SPIE Proceedings Vol. 7472:
Remote Sensing for Agriculture, Ecosystems, and Hydrology XI
Christopher M. U. Neale; Antonino Maltese, Editor(s)

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