Relationships amongst organic matter content, heavy metal concentrations, earthworm activity, and soil microfabric on a sewage sludge disposal site

Tomlin, A. D.; Protz, R.; Martin, Ronald R.; Mccabe, D.; Lagacé, Réal

doi:10.1016/0016-7061(93)90149-f

Cited by 26 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Evidence for some migration of Cd, Zn, Pb, and Cu to at least 20 cm was already noted in 1979 (OMOE 1980). Biological activity, particularly of earthworms, may have transported significant amounts of metals at this site (Tomlin et al 1993). For personal use only.…”

Section: Soil Properties and Extractable Metalsmentioning

confidence: 99%

Trace metal extractability in soils and uptake by bromegrass 20 years after sewage sludge application

McBride¹,

Evans²

2002

Can. J. Soil. Sci.

View full text Add to dashboard Cite

. 2002. Trace metal extractability in soils and uptake by bromegrass 20 years after sewage sludge application. Can. J. Soil Sci. 82: 323-333. The long-term potential for sewage sludge amendments to alter forage trace metal concentrations was determined on bromegrass, which received no sludge application for 20 yr following annual application during 1973-1980 on a no-till randomized-plot experimental site. In addition, soils were analyzed for trace metals, both total and extractable (using hot 0.01 M CaCl 2 ), by axial-view inductively coupled plasma spectrometry.For Cu, Ni, Zn and Cd, extractability from the soil (by CaCl 2) as well as plant tissue concentrations were relatively low considering the high loadings of these particular metals, a fact attributable to the near-neutral pH and high organic matter content of these calcareous soils. However, total and extractable soil Mo remained elevated in the sewage-sludge-amended plots above the levels measured in the fertilized control plots some 20 yr after the last sewage sludge application. Mo bioaccumulated in the bromegrass more than the other trace metals investigated at this site. The Cu:Mo ratio in the forage, a measure of potential to induce Cu deficiency in grazing ruminants, was substantially depressed by most of the sewage sludge treatments. Comparison of the 2000 and 1980 bromegrass analyses suggests an increase in the long-term plant availability of Mo in soils amended with highFe and high-Al sludges. Conversely, there was a long-term decrease in Mo availability on the high-Ca sludge treatment, consistent with evidence that much of the Mo has been lost from the topsoil since sludge application. For Cu, Ni and Zn, plant availability appears to have decreased between 1980 and 2000, attributable in part to a calculated loss of substantial fractions of these metals from the topsoil.Bromegrass concentrations of Cu, Ni, Zn, Cd and Mo were strongly correlated to CaCl 2 -extractable and total metals in the soils, indicating the utility of 0.01 M CaCl 2 in predicting plant availability. The chemical differences in the three sludge types applied at the site (high-Ca, high-Al, high-Fe) had little long-term impact on the extractability and phytoavailability of most trace metals remaining in the topsoil. Pour cela, ils ont examiné du brome cultivé sur des terres qui n'avaient pas été amendées avec des boues usées pendant 20 ans après en avoir reçu chaque année de 1973 à 1980. Les essais ont eu lieu sur un site expérimental constitué de parcelles randomisées dont le sol n'avait pas été travaillé. Les auteurs ont aussi déterminé la concentration totale et extractible (au CaCl 2 à 0,01 M chaud) d'oligo-éléments dans le sol à partir des incidences axiales obtenues par spectrométrie à plasma inductif. La quantité de Cu, de Ni, de Zn et de Cd extraite du sol (au CaCl 2 ) et la concentration de ces oligo-éléments dans les tissus végétaux sont relativement faibles malgré la grande quantité de boues usées épandues. On le doit sans doute au pH presque neutre et à la forte con...

show abstract

Section: Soil Properties and Extractable Metalsmentioning

confidence: 99%

Trace metal extractability in soils and uptake by bromegrass 20 years after sewage sludge application

McBride¹,

Evans²

2002

Can. J. Soil. Sci.

View full text Add to dashboard Cite

show abstract

“…Generally, the effects of fertiliser application in moderate doses are positive, originating from the modification of microclimatic conditions or from resource availability [4,[30][31][32][33][34][35][36][37][38].…”

Section: Soil Fauna As a Quality Indicatormentioning

confidence: 99%

Agro-Industrial Waste Management: A Case Study of Soil Fauna Responses to the Use of Biowaste as Meadow Fertiliser in Galiza, Northwestern Spain

Matos-Moreira¹,

Cunha²,

López-Mosquera³

et al. 2012

Waste Management - An Integrated Vision

View full text Add to dashboard Cite

“…Conceptually, these divisions have provided a useful mechanism for classifying earthworm activity and impacts on soils. A related concept is the description of earthworm burrow linings as "drilosphere" (Lavelle et al 1989) which are enriched with nutrients, microflora, sorted minerals and even pollutants that have been concentrated as a consequence of earthworm feeding and casting (Lavelle and Martin 1992;Tomlin et al 1993). Görres et al (2001) observed that carbon mineralization was highest in soil taken from the linings of burrows, followed by cast and bulk soil.…”

Section: Earthworm Ecology and Impact Of Agricultural Systems Some Ecmentioning

confidence: 99%

“…Combining both of these methodologies has considerable potential for providing quantitative measurements of the impact and extent of earthworm burrowing activity in soils. VandenBygaart et al (2000) noted that considerable methodological research is still needed before the extent of influences on formation of soil pores and aggregates is known on a volumetric basis (i.e., in three dimensions); such data would enable assessing impacts on soil structural quality.…”

Section: Contribution Of Earthworms To Soil Processes and Structurementioning

confidence: 99%

“…Crop selection and rotation have significant effects on subsequent earthworm populations. For example, in a study by Tomlin et al (1993) that compared different tillage practices, the continuous soybean cropping was observed to have the lowest earthworm numbers of the tillages examined, presumably because of the reduced inputs of crop residues associated with soybeans. Agricultural practices that cause the greatest changes in soil faunal populations of earthworms and soil arthropods are deforestation followed by conventional tillage (Tomlin and Miller 1987).…”

Section: Research Concerning Influences On Earthworm Abundancementioning

confidence: 99%

See 1 more Smart Citation

Earthworms and agricultural systems: Status of knowledge and research in Canada

Tomlin¹,

Fox²

2003

Can. J. Soil. Sci.

View full text Add to dashboard Cite

Since the ratification of the United Nations Convention on Biological Diversity, there has been increased interest in issues related to biodiversity, particularly with respect to soil biodiversity and the influence of agricultural practices. This paper is one of a series of papers contributing to a state of the art review initiated by Agriculture and Agri-Food Canada on the status of soil biodiversity research in Canada, particularly with respect to agroecosystems. The objectives of this paper are to provide an overview of earthworm species distribution in Canada by province and territory, and to review research that illuminates our understanding of the ecological relationships of earthworms in agricultural systems. Most Canadian earthworm species are considered exotics having generally been dependent on human activity for their introduction and dispersal throughout the Canadian landscape. Twenty-seven earthworm species have been identified so far in Canada; of these, eight species are native to North America. Suggestions for future research on earthworm biodiversity within an agricultural context are discussed including: the need for increased spatial and temporal information on earthworm distributions across Canada, particularly with respect to Canada’s varied agroecosystems and landscapes; information on the ecology of earthworms with respect to their contributions to the soil system and their interactions with other soil fauna; the need for ecosystem process models relating earthworm contributions to soil structure formation and transport of materials and nutrients within the soil system; and the need to determine threshold levels of earthworm species associations in order to optimise effectively their contributions to soil quality and plant growth. To facilitate these studies, expansion of taxonomic expertise and capability across Canada will be required. Key words: Earthworms, agroecosystems, ecology, species distribution, soil biodiversity

show abstract

Relationships amongst organic matter content, heavy metal concentrations, earthworm activity, and soil microfabric on a sewage sludge disposal site

Cited by 26 publications

References 14 publications

Trace metal extractability in soils and uptake by bromegrass 20 years after sewage sludge application

Trace metal extractability in soils and uptake by bromegrass 20 years after sewage sludge application

Agro-Industrial Waste Management: A Case Study of Soil Fauna Responses to the Use of Biowaste as Meadow Fertiliser in Galiza, Northwestern Spain

Earthworms and agricultural systems: Status of knowledge and research in Canada

Contact Info

Product

Resources

About