Hyperspectral characteristics and health status evaluation of vegetation in the restoration area of the abandoned ion type rare earth mine in Ganzhou, Jiangxi Province

WEI Jixin; LIU Siwen; LI Haipan; CHEN Wenhua

2020 Vol. 39, No. 12

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WEI Jixin, LIU Siwen, LI Haipan, CHEN Wenhua. Hyperspectral characteristics and health status evaluation of vegetation in the restoration area of the abandoned ion type rare earth mine in Ganzhou, Jiangxi Province[J]. Geological Bulletin of China, 2020, 39(12): 2037-2043.

Citation:

WEI Jixin, LIU Siwen, LI Haipan, CHEN Wenhua. Hyperspectral characteristics and health status evaluation of vegetation in the restoration area of the abandoned ion type rare earth mine in Ganzhou, Jiangxi Province[J]. Geological Bulletin of China, 2020, 39(12): 2037-2043.

Hyperspectral characteristics and health status evaluation of vegetation in the restoration area of the abandoned ion type rare earth mine in Ganzhou, Jiangxi Province

1.
National Research Center for Geoanalysis, Beijing 100037, China
2.
China University of Geosciences(Beijing), Beijing 100083, China
3.
Key Laboratory of Ministry of Natural Resources for Eco-geochemistry, Beijing 100037, China
4.
Gannan Geological Survey Group, Ganzhou 341000, Jiangxi, China
5.
Geo-engineering Investigation Institute of South Jiangxi Province, Ganzhou 341000, Jiangxi, China

More Information

Corresponding author: LIU Siwen, siwenzliu@cags.ac.cn

Received Date: 10 July 2020

Revised Date: 16 October 2020

Publish Date: 25 December 2020

Abstract

Abstract

Since the end of 2016, it has become the basic problem for the government to extract the rare earth ions in abandoned mine areas.In order to solve the above problems, China Geological Survey supported the mine geological environment survey of seven counties in Ganzhou, and deployed the comprehensive investigation and evaluation of the geological environment of the rare earth mines in Ganzhou.In this paper, UAV carrying hyperspectral spectrometer was used as the main remote sensing survey tool, the typical abandoned rare earth mine restoration area was selected as the research area, and the hyperspectral images of 2 km² of typical mining area in zudong area of Longnan county were obtained.With ENVI software, mixed linear model was used to extract spectral characteristics of original and restored vegetation in the mining area.Vegetation growth in abandoned rare earth mine area was analyzed by zoning, and the health status of vegetation in the restoration area was tentatively evaluated.This method combines geochemical survey with hyperspectral remote sensing, and provides a rapid and accurate evaluation means for the evaluation of vegetation ecological restoration effect of abandoned rare earth mines.
- Ganzhou poverty alleviation /
- restoration of abandoned rare earth mines /
- UAV carrying hyperspectral /
- spectral curve

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