Influence of earthworms and leaf litter on edaphic variables in sewage-sludge-treated soil microcosms

W. E. Hamilton, D. L. Dindal

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A series of 48 greenhouse soil microcosms were established and treated with combinations of sewage sludge, Acer saccharum leaves, and the earthworms Eisenia fetida and Lumbricus terrestris. The microcosms were incubated at constant moisture for 110 days. Samples were then taken and analysed for sludge depth, organic-matter content, and waterstable soil aggregates. Weights of surface leaves and weights and numbers of surviving earthworms were determined for each microcosm. L. terrestris significantly reduced sludge depth and the surface organic-matter content of microcosm soil and significantly increased percentages of 4-mm diameter water-stable aggregates. Leaf litter also significantly reduced sludge depth and increased 4-mm water-stable aggregates. E. fetida inhibited surface feeding by L. terrestris, reduced its 110-day survival rate, and inhibited the production of 4-mm water-stable aggregates in L. terrestris treatments. Numbers of E. fetida increased in L. terrestris treatments. Sludge depth, organic-matter content and water-stable aggregates were not significantly different from controls in E. fetida treatments.

Original languageEnglish (US)
Pages (from-to)129-133
Number of pages5
JournalBiology and Fertility of Soils
Volume7
Issue number2
DOIs
StatePublished - Jan 1989

Fingerprint

Lumbricus terrestris
Oligochaeta
sewage sludge
Eisenia fetida
Sewage
leaf litter
earthworms
earthworm
plant litter
microcosm
Soil
sludge
soil organic matter
organic matter
soil
water
soil aggregate
greenhouse soils
Acer saccharum
Water

All Science Journal Classification (ASJC) codes

  • Soil Science
  • Medicine(all)

Cite this

@article{74a6f745549042b1b7b9e1b8d3ad7eb8,
title = "Influence of earthworms and leaf litter on edaphic variables in sewage-sludge-treated soil microcosms",
abstract = "A series of 48 greenhouse soil microcosms were established and treated with combinations of sewage sludge, Acer saccharum leaves, and the earthworms Eisenia fetida and Lumbricus terrestris. The microcosms were incubated at constant moisture for 110 days. Samples were then taken and analysed for sludge depth, organic-matter content, and waterstable soil aggregates. Weights of surface leaves and weights and numbers of surviving earthworms were determined for each microcosm. L. terrestris significantly reduced sludge depth and the surface organic-matter content of microcosm soil and significantly increased percentages of 4-mm diameter water-stable aggregates. Leaf litter also significantly reduced sludge depth and increased 4-mm water-stable aggregates. E. fetida inhibited surface feeding by L. terrestris, reduced its 110-day survival rate, and inhibited the production of 4-mm water-stable aggregates in L. terrestris treatments. Numbers of E. fetida increased in L. terrestris treatments. Sludge depth, organic-matter content and water-stable aggregates were not significantly different from controls in E. fetida treatments.",
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Influence of earthworms and leaf litter on edaphic variables in sewage-sludge-treated soil microcosms. / Hamilton, W. E.; Dindal, D. L.

In: Biology and Fertility of Soils, Vol. 7, No. 2, 01.1989, p. 129-133.

Research output: Contribution to journalArticle

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