Health condition assessment for vegetation exposed to heavy metal pollution through airborne hyperspectral data
Article
Banerjee, Bikram Pratap, Raval, Simit, Zhai, Hao and Cullen, Patrick Joseph. 2017. "Health condition assessment for vegetation exposed to heavy metal pollution through airborne hyperspectral data." Environmental Monitoring and Assessment. 189 (12). https://doi.org/10.1007/s10661-017-6333-4
Article Title | Health condition assessment for vegetation exposed to heavy metal pollution through airborne hyperspectral data |
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ERA Journal ID | 5880 |
Article Category | Article |
Authors | Banerjee, Bikram Pratap, Raval, Simit, Zhai, Hao and Cullen, Patrick Joseph |
Journal Title | Environmental Monitoring and Assessment |
Journal Citation | 189 (12) |
Article Number | 604 |
Number of Pages | 11 |
Year | 2017 |
Place of Publication | Netherlands |
ISSN | 0167-6369 |
1573-2959 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s10661-017-6333-4 |
Web Address (URL) | https://link.springer.com/article/10.1007/s10661-017-6333-4 |
Abstract | Recent advancements in hyperspectral remote sensing technology now provide improved diagnostic capabilities to assess vegetation health conditions. This paper uses a set of 13 vegetation health indices related to chlorophyll, xanthophyll, blue/green/red ratio and structure from airborne hyperspectral reflectance data collected around a derelict mining area in Yerranderie, New South Wales, Australia. The studied area has ten historic mine shafts with a legacy of heavy metals and acidic contamination in a pristine ecosystem now recognised as Great Blue Mountain World Heritage Area. The forest is predominantly comprised of different species of Eucalyptus trees. In addition to the airborne survey, ground-based spectra of the tree leaves were collected along the two accessible heavy metal contaminated pathways. The stream networks in the area were classified and the geospatial patterns of vegetation health were analysed along the Tonalli River, a major water tributary flowing through the National Park. Despite the inflow of contaminated water from the near-mine streams, the measured vegetation health indices along Tonalli River were found to remain unchanged. The responses of the vegetation health indices between the near-mine and away-mine streams were found similar. Based on the along-stream and inter-stream analysis of the spectral indices of vegetation health, no significant impact of the heavy metal pollution could be noticed. The results indicate the possibility of the vegetation having developed immunity towards the high levels of heavy metal pollution over a century of exposure. |
Keywords | Vegetation stress; Heavy metal pollution; Hyperspectral remote sensing; Abandoned mines |
ANZSRC Field of Research 2020 | 410402. Environmental assessment and monitoring |
401304. Photogrammetry and remote sensing | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of New South Wales |
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