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›› 2019, Vol. 36 ›› Issue (4): 560-566.DOI: 10.7523/j.issn.2095-6134.2019.04.016

• Research Articles • Previous Articles     Next Articles

Hyperspectral monitoring of soil contaminated by heavy metals

CHEN Gongwei, ZHAO Siying, NI Caiying   

  1. School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China
  • Received:2018-05-07 Revised:2018-10-10 Online:2019-07-15

Abstract: To explore the correlation of spectrum parameters of rice with soil heavy metal pollution, the paddy field measurements in Guixi County of Jiangxi Province and the remote sensing spectral analyses were finished in this study. The results showed a positive correlation between heavy metals' contents (Cu, Pb, Zn, and Cd) in rice and in soil, but a negative correlation between heavy metals and chlorophyll content (SPAD value) of rice. Among the four polluted metals Cd had the highest correlated coefficients, and the rice SPAD value had a significant correlation with the remote sensing spectral characteristic parameters such as blue valley location, blue valley depth, red valley location, and red edge peak value only when the Cd pollution mentioned. Therefore, in the study area, the heavy metal Cd in paddy soil could be effectively monitored by the remote sensing spectroscopy.

Key words: hyperspectra, soil, heavy metal pollution, rice, SPAD value

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