+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Natural plant colonization improves the physical condition of bauxite residue over time



Natural plant colonization improves the physical condition of bauxite residue over time



Environmental Science and Pollution Research International 23(22): 22897-22905



Freshly stacked bauxite residue in Central China has little vegetative growth probably as a result of its poor physical condition and chemical properties which deter plant establishment. Over the last 20 years, spontaneous plant colonization on the deposits has revealed that natural weathering processes may improve bauxite residue to the extent that it can support vegetation. Bauxite residue samples were collected from a chronosequence and analyzed to determine the effect of natural processes over time. The freshly stacked residue showed considerable physical degradation, having a high bulk density, low porosity, and poor aggregate stability. Through natural processes over a 20-year period, the texture changed from a silty loam to a sandy loam, porosity was enhanced (43.88 to 58.24 %), while improvements in both aggregate stability (43.32 to 93.20 %) and structural stability (1.33 to 5.46 %) of the stacked residue were observed. Plant growth had a positive effect on pH, exchangeable sodium percentage, soil organic carbon, water-stable aggregation, and structural stability, probably due to the presence of plant roots and associated microbial activity. It was concluded that natural processes of regeneration, stabilization, and attenuation have improved the hostile physical environment of bauxite residue allowing plant establishment to take place.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 058381556

Download citation: RISBibTeXText

PMID: 27572694

DOI: 10.1007/s11356-016-7508-1


Related references

Aspergillus tubingensis Improves the Growth and Native Mycorrhizal Colonization of Bermudagrass in Bauxite Residue. Bioremediation Journal 15(3): 157-164, 2011

Influence of organic waste and residue mud additions on chemical, physical and microbial properties of bauxite residue sand. Environmental Science and Pollution Research International 18(2): 199-211, 2011

Influence of natural regeneration on fractal features of residue microaggregates in bauxite residue disposal areas. Land Degradation & Development 29(1): 138-149, 2018

Plant-available manganese in bauxite residue sand amended with compost and residue mud. Soil Research 50.5: 416-423, 2012

In situ neutralisation of uncarbonated bauxite residue mud by cross layer leaching with carbonated bauxite residue mud. Journal of Hazardous Materials 194: 119-127, 2011

Bauxite residue fines as an amendment to residue sands to enhance plant growth potential—a glasshouse study. Journal of Soils and Sediments 11(6): 889-902, 2011

Bacterial diversity of extremely alkaline bauxite residue site of alumina industrial plant using culturable bacteria and residue 16S rRNA gene clones. Extremophiles 18(4): 665-676, 2014

Bauxite residue (red mud) improves pasture growth on sandy soils in Western Australia. Australian Journal of Soil Research 34(4): 569-581, 1996

Deep banding improves residual effectiveness of manganese fertiliser for bauxite residue revegetation. Australian Journal of Soil Research 41(7): 1273-1282, 2003

Deep placement of manganese fertiliser improves sustainability of lucerne growing on bauxite residue: A glasshouse study. Plant & Soil 257(1): 85-95, 2003

Natural evolution of alkaline characteristics in bauxite residue. Journal of Cleaner Production 143: 224-230, 2017

Effective Nutrient Sources for Plant Growth on Bauxite Residue. Water, Air & Soil Pollution 176(1-4): 5-19, 2006

Possibility of using caustic residue from bauxite for improving the chemical and physical properties of sandy soils. Australian Journal of Agricultural Research 33(2): 275-286, 1982

Effect of synthetic and natural polymers on reducing bauxite residue dust pollution. Environmental Technology 2018: 1-10, 2018

Micronutrient fractionation and plant availability in bauxite-processing residue sand. Australian Journal of Soil Research 47.5: 518-528, 2009