Monitoring Reclamation of Plant Biodiversity and Soil Parameters in an Area of Bauxite Mine Spoils (A Case Study of Greece)

Alexandra D. Solomou (), Panagiotis Michopoulos and George Mantakas
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Alexandra D. Solomou: Institute of Mediterranean Forest Ecosystems, Hellenic Agricultural Organization Demeter (ELDO DIMITRA), P.O. Box 14180, Terma Alkmanos, Ilisia, 11528 Athens, Greece
Panagiotis Michopoulos: Institute of Mediterranean Forest Ecosystems, Hellenic Agricultural Organization Demeter (ELDO DIMITRA), P.O. Box 14180, Terma Alkmanos, Ilisia, 11528 Athens, Greece
George Mantakas: Institute of Mediterranean Forest Ecosystems, Hellenic Agricultural Organization Demeter (ELDO DIMITRA), P.O. Box 14180, Terma Alkmanos, Ilisia, 11528 Athens, Greece

Sustainability, 2023, vol. 15, issue 20, 1-16

Abstract: In order to assess plant biodiversity in bauxite mine spoils, a fully randomized experiment was carried out with five treatments to find the ones that would best restore the soil and plant biodiversity in the spring seasons of 2020 and 2021. In the studied area, 68 plant species belonging to 54 genera with high ecological value that comprise the flora and represent 19 families were identified. Concerning the herbaceous plant species richness in several treatments, the highest value was calculated in the treatment of sludge (52 plant species), followed by the treatment of soil in the area (39), whereas the lowest plant species richness was recorded in the treatment of fertilization (27), the incorporation of soil with soils (26), and control (27), so our findings indicate that the area where sludge was applied showed the highest nutrient enrichment as well as the highest plant biodiversity, plant cover, and biomass. Apart from sludge, the mineral soil around the area was also composed of some materials that provided good results with regard to plant parameters. The main problems with the properties of the mine spoil material were the low organic matter content and the low clay percentage. The use of sludge, probably in combination with the soil around the area, might alleviate these problems. The plant parameters (Shannon diversity index, plant cover, and biomass) correlated positively and significantly with most of the macronutrients and micronutrients in soils.

Keywords: bauxite mine; soil; plants; reclamation; treatments (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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