An investigation into the bacteriology of top-soil dumps

Barkworth, H.; Bateson, Mary M.

doi:10.1007/bf01377749

Cited by 10 publications

(7 citation statements)

References 1 publication

(1 reference statement)

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“…OFlanagan et al (1963) found that numbers of aerobic microorganisms declined with depth in a 3-year-old mound up to 1.8 m, but thereafter remained similar down to 5 m; anaerobic microorganisms did not display any depth-related effects. Similar results were found by Barkworth & Bateson (1964). Shorter-term changes (10-29 months) were noted by Miller & Cameron (1976).…”

Section: Introductionsupporting

confidence: 84%

“…The results presented herein show that there are considerable, though irregular, variations in microbial counts in stockpiled soils, even when soils are taken from close proximities (50 cm apart) and that, on a wider scale, there is considerable lateral, as well as vertical, microbial heterogeneity in these soils. The overall picture of the microbiological status of stockpiled soils presented in this report is, in many ways, not too dissimilar from that reported over 25 years ago by Barkworth & Bateson (1964). During that time, however, there have been considerable changes in the stripping and stockpiling process, particularly in the scale of machinery used at opencast sites.…”

Section: Discussion a N D Conclusionsupporting

confidence: 40%

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Microbiology of soils at opencast coal sites. I. Short‐and long‐term transformations in stockpiled soils

Johnson

Williamson

Bailey

1991

Journal of Soil Science

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SUMMARY The microbiology of soils subjected to stripping and stockpiling at opencast mine sites was investigated using a combination of and biomass fumigation plate‐count techniques. Mounds varied in age from a few weeks to 11 years, and soils included both mineral and organic variants. Results showed that after an initial stimulation of bacteria, microbial populations declined in stockpiles. Numbers of viable fungal propagules, and to a lesser extent actinomycetes, declined with depth in mounds, particularly below about 1 m, and this trend was accentuated with increased time of storage. However, stockpiled soils were highly variable in terms of microbiological status and displayed considerable lateral as well as vertical heterogeneity.

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Section: Introductionsupporting

confidence: 84%

Section: Discussion a N D Conclusionsupporting

confidence: 40%

Microbiology of soils at opencast coal sites. I. Short‐and long‐term transformations in stockpiled soils

Johnson

Williamson

Bailey

1991

Journal of Soil Science

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“…Top soil is used to cover poor substrate and to provide improved growth conditions for plants (Sheoran et al, 2010). Stockpiling of top soil in mounds during mineral extraction has been shown to affect the biological, chemical and physical properties of soil (Hunter and Currie, 1956;Barkworth and Bateson, 1964;Harris et al, 1989;Johnson et al, 1991;Davies et al, 1995). According to Amegbey (2001), stockpiling reduces the quality of the soil resources.…”

Section: Top Soilmentioning

confidence: 99%

Role of revegetation in restoring fertility of degraded mined soils in Ghana: A review

Mensah¹

2015

Int. J. Biodivers. Conserv.

100

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The topsoil gets seriously damaged during mineral extraction. The consequences of physical disturbance to the topsoil during stripping, stockpiling and reinstatement results in soil degradation through loss of soil structure, accelerated soil erosion, excessive leaching, compaction, reduced soil pH, accumulation of heavy metals in soils, depletion of organic matter, decreased plant available nutrients, reduced cation exchange capacity, decreased microbial activity and consequent reduction in soil fertility. Management of topsoil is important for reclamation plan to reduce nutrient losses and eventually restore the fertility. Revegetation constitutes the most widely accepted and useful way to improve the fertility of degraded mined lands. A review was conducted to assess the contribution of revegetation to improvement of soil fertility of mined lands. The results obtained in this study indicate that revegetation through forest vegetation is one of the efficient means of restoring soil fertility through improvement in soil organic matter content, available nutrients, cation exchange capacity, increased biological activities as well as improvement in physical conditions of the soil. However, it will require longer periods to restore the fertility as closely as possible to the original level. The efforts to rehabilitate mined lands have focused on N-fixing species of legumes, grasses, herbs and trees. Some of the promising tree species that can be used for revegetation are Acacia, Leucaena and other legume trees that are acid-tolerant and can add substantial amount of organic matter to the soil. Long term revegetation using legume species of high metal accumulation and are acid tolerant should therefore be considered in mining areas.

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“…The presence of ammonification bacteria was estimated by the detection of ammonium ion by Nessler's method (Gedroits 1955). (b) Nitritation bacteria: Each diluted sample solution was inoculated and cultured in an autotrophic medium for nitritation bacteria (Bankworth & Bateson 1964) at 25°C for 6 weeks at a stationary culture. The presence of nitritation bacteria was estimated by the detection of nitrite ion with Griess-Ilosvay reagent (Schmidt & Belser 1994).…”

Section: Soils and Incubationmentioning

confidence: 99%

Effects of highly volatile organochlorine solvents on nitrogen metabolism and microbial counts

et al. 2012

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Abstract:The effects of highly volatile organochlorine solvents (1,1,1-trichloroethane, TCET; trichloroethylene, TCE; and tetrachloroethylene, PCE) on soil nitrogen cycle and microbial counts were investigated using volcanic ash soil with different fertilizations. All the solvents significantly inhibited the activity of the cycle under the sealed conditions with 10 to 50 mg/g (dry soil) solvents added. No significant difference between the solvents, and between fertilization plots, was observed. Nitrate ion was not accumulated, and instead, ammonium ion was highly accumulated in the presence of the solvents. Nitrite ion was partially detected, while l-glutaminase activity was inhibited. The growths of ammonification, nitritation, nitratation and denitrification bacteria, and filamentous fungi were significantly inhibited in the presence of 10 mg/g (dry soil) of the solvents.

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An investigation into the bacteriology of top-soil dumps

Cited by 10 publications

References 1 publication

Microbiology of soils at opencast coal sites. I. Short‐and long‐term transformations in stockpiled soils

Microbiology of soils at opencast coal sites. I. Short‐and long‐term transformations in stockpiled soils

Role of revegetation in restoring fertility of degraded mined soils in Ghana: A review

Effects of highly volatile organochlorine solvents on nitrogen metabolism and microbial counts

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