›› 2018, Vol. 30 ›› Issue (5): 863-871.DOI: 10.3969/j.issn.1004-1524.2018.05.26

• Ecosystems Engineering • Previous Articles     Next Articles

Analysis of dynamic change characteristics of iron ore and its surrounding vegetation based on multi temporal remote sensing

PANG Dong1, TAN Lin1, HE Bingyu1,2,*   

  1. 1. Institute of Resources and Environmental Science,Xinjiang University,Urumqi 830046,China;
    2. Laboratory of Wisdom City and Environmental Modeling,Urumqi 830046,China
  • Received:2017-11-07 Online:2018-05-20 Published:2018-05-23

Abstract: In Xinjiang iron ore and its surrounding area,using 2007—2016 multi temporal TM/ETM+and OLI images,analysis of the iron ore and its surrounding large areas of vegetation cover index (FVC) and the growth of vegetation condition index (VCI), the vegetation coverage, temporal and spatial changes of vegetation growth and the effect of iron ore mining on the surrounding environment were evaluated, to provide decision support for mine environment. The results showed that FVC and VCI index can reflect the low level of coverage vegetation and vegetation growth status in the study area, and there was almost no actual vegetation growth in iron ore area, which could provide theoretical support for ecological risk prevention. In 2007—2016, the overall vegetation coverage and vegetation growth in the study area fluctuated upward, and the lower vegetation coverage degree and poor vegetation growth status degree developed to a better level at the same time. The higher grades of FVC and VCI were mainly distributed in the southern and southwestern slope. But the iron ore mining area increased year by year, and the area and the surrounding area has caused serious degradation of vegetation and ecological damage, which could easily lead to soil erosion and landslides and other disasters. Thus, prevention and control measures should be taken in time.

Key words: iron ore, fractional vegetation cover, vegetation condition index, Landsat series data

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