scholarly journals Macronutrients and heavy metals contents in the leaves of trees from the devastated lands at Kryvyi Rih District (Central Ukraine)

2020 ◽  
Vol 166 ◽  
pp. 01011
Author(s):  
Yuliia Bielyk ◽  
Vasyl Savosko ◽  
Yuriy Lykholat ◽  
Hermann Heilmeier ◽  
Ivan Grygoryuk
Keyword(s):  
Heavy Metals ◽  
Forest Restoration ◽  
Iron Ore ◽  
Black Locust ◽  
Waste Rock ◽  
Silver Birch ◽  
Geochemical Conditions ◽  
Waste Rock Dump

This research was performed at Petrovsky waste rock dump, the Central part of the Kryvyi Rih iron-ore & metallurgical district (Dnipropetrovsk region, Ukraine). The macronutrients (K, Ca, Mg, P and S) and heavy metals (Fe, Mn, Zn, Cu, Pb and Cd) contents in the leaves of three species of the trees (Ash-leaved maple, Silver Birch and Black locust) that were collected on devastated lands were assessed. It was established that trees which grow on the Petrovsky dump take place under evident shortage of nutrients (especially K and P) and excess of metals (especially Fe, Mn and Zn). It is revealed that Ash-leaved maple and Black locust are more resistant to the geochemical conditions of devastated lands. In this regard, these species of trees can be recommended for forest restoration & reforestation on devastated lands.

scholarly journals Assessment of the woody plant species vital condition distributed on the devastated lands of the iron ore dump

2021 ◽  
pp. 22-27
Author(s):  
Y. V. Bielyk ◽  
V. M. Savosko ◽  
Y. V. Lykholat
Keyword(s):  
Plant Species ◽  
Iron Ore ◽  
Robinia Pseudoacacia ◽  
Ecosystem Approach ◽  
Waste Rock ◽  
Habitat Conditions ◽  
Waste Rock Dump ◽  
Industrial Regions ◽  
Robinia Pseudoacacia L ◽  
Natural Groups

The actuality of the research is caused by the importance of understanding the laws of natural distribution of woody and shrub plant species on devastated lands of iron ore dumps of Kryviy Rih as a theoretical prerequisite for harmonizing the ecological environment of industrial regions. The aim of the research is to assess the current vital condition of woody and shrub plant species that naturally grow on devastated lands of the iron ore dump from the standpoint of the ecosystem approach. The materials of the work were the results of our own research, which were carried out according to generally accepted methods during 2020–2021 on the territory of Petrovsky waste rock dump of Kryviy Rih iron ore basin. The assessment of the current vital condition was carried out according to the method of V. A. Alekseyev. Presently,   the vegetation on Petrovsky waste rock dump, which is a model for the region, is represented by natural groups, has a fragmented character and is a sparse forest. It has been established that 32 species of woody and shrub plant species (25 genera and 15 families) naturally grow within Petrovsky waste rock dump. The current vital condition of woody and shrub plant species in the dump was assessed as «weakened» (65–71 conventional points by V. A. Alekseyev’s scale). Such numerical values of the vitality of the forest stand are 21–28% lower than the control indicators (natural groupings of Gurivka forest). Our results indicate that the ecological conditions of the devastated lands of Petrovsky waste rock dump are relatively favourable for the growth and development of woody and shrub plant species. It was found that European birch (Betula pendula Roth.), ash-leaved maple (Acer negundo L.) and acacia (Robinia pseudoacacia L.) are quite adapted to the habitat conditions of the dump. The vital condition of these species was assessed as «healthy»: 90–95 conventional points by V. A. Alekseyev’s scale.

Heavy metals pollution potentials in the National Iron Ore Mining Company, Itakpe

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Cyril Ocheri ◽  
A. D. Omah ◽  
C. N. Mbah ◽  
R. E. Njoku ◽  
N. A. Urama ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sea Level ◽  
Toxic Elements ◽  
Iron Ore ◽  
Pollution Potential ◽  
Extraction Techniques ◽  
Mining Company ◽  
Mining Sites ◽  
Metals Pollution ◽  
Heavy Metals Pollution

Heavy metals pollution potential in National Iron Ore Mining Company, Itakpe was investigated. Two mining sites located at the east mining pits such as M3O, which is 370 m above sea level and M2O, which is 350 m above sea level were studied.  Sequential extraction techniques was utilised to examine the distribution effect of the heavy metals pollution potential on the environment. Twelve representative (six-soil, two-sediment, two-plant and two-water) samples were collected, pre-treated and prepared for this study. The atomic absorption spectrometer was used to analyse the concentration of the metals after the sequential and single-stage extractions were determined. Results showed that Chromium, Arsenic, Cadmium and Copper are more bioavailable in the study area than Lead and Iron. This findings indicate that human, animals and plants are exposed to toxic elements (metals and metalloids).

Simulating nitrate release from an unsaturated coal waste rock dump

2021 ◽  
Vol 779 ◽  
pp. 146429
Author(s):  
Mingbin Huang ◽  
S. Lee Barbour ◽  
M. Jim Hendry
Keyword(s):  
Waste Rock ◽  
Coal Waste ◽  
Waste Rock Dump

Safety assessment of waste rock dump built on existing tailings ponds

2015 ◽  
Vol 22 (7) ◽  
pp. 2707-2718 ◽  
Author(s):  
Quan-ming Li ◽  
Hui-na Yuan ◽  
Mao-hua Zhong
Keyword(s):  
Safety Assessment ◽  
Waste Rock ◽  
Waste Rock Dump ◽  
Tailings Ponds
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