Evaluation of Biological Characteristics of Soil as Indicator for Sustainable Rehabilitation of a Post-Bauxite-Mining Land
Open Access
- 9 December 2022
- Vol. 14 (12), 1087
- https://doi.org/10.3390/d14121087
Abstract
This paper presents a study of the microbial abundance in post-bauxite-mining land soil from Zece Hotare, Bihor county, Romania. The soil samples were collected from 12 soil variants, in the year 2020, after 15 years of long-term restoration. Some chemical parameters and bacterial numbers of six groups of microorganisms were determined in the restored mining land, and these characteristics were compared with those of the soil from a beech forest situated in an adjacent area unaffected by bauxite exploitation. On the basis of the total number of microorganisms belonging to each group studied, the bacterial potential of the soil quality was assessed, calculating the bacterial soil quality index (BSQI), while the Shannon diversity index and the Jaccard distance were applied to show the level of bacterial diversity. The characteristics of the studied chemical and microbiological parameters determined in the beech adjacent area were very similar to those observed in the high-level plateau, low-level plateau, and Black locust areas, indicating similar soil conditions; therefore, the ecological reconstruction 15 years ago, had a very favorable impact on restoration in some affected areas.Keywords
Funding Information
- Romanian Ministry of Research, Innovation, and Digitization (34PFE./30.12.2021)
This publication has 32 references indexed in Scilit:
- Effects of slope exposure on soil physico-chemical and microbiological properties along an altitudinal climosequence in the Italian AlpsScience of The Total Environment, 2017
- The variations in soil microbial communities, enzyme activities and their relationships with soil organic matter decomposition along the northern slope of Changbai MountainApplied Soil Ecology, 2015
- Nitrogen fertilization and tillage reversal affected water-extractable organic carbon and nitrogen differentially in a Black Chernozem and a Gray LuvisolSoil and Tillage Research, 2014
- Bacterial Communities Established in Bauxite Residues with Different Restoration HistoriesEnvironmental Science & Technology, 2013
- Poly-β-hydroxybutyrate accumulation in bacterial consortia from different environmentsCanadian Journal of Microbiology, 2012
- Heavy Metals in Contaminated Soils: A Review of Sources, Chemistry, Risks and Best Available Strategies for RemediationISRN Ecology, 2011
- Soil Functional Diversity Analysis of a Bauxite-Mined Restoration ChronosequenceMicrobial Ecology, 2009
- An Evaluation of Revegetation Success on Bauxite ResidueRestoration Ecology, 2009
- Microbial Diversity, Life Strategies, and Adaptation to Life in Extreme SoilsSoil Biology, 2008
- Organic carbon pools in a Luvisol under agroforestry and conventional farming systems in the semi-arid region of Ceará, BrazilAgroforestry Systems, 2007