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Earthworm community development in soils of a reclaimed steelworks

Pedosphere 2021年第3期31卷 384-390页

作者： Kevin RBUTT Siobhan MQUIGG University of Central Lancashire School of Forensic and Applied SciencesPreston PR12HEUK

Long-term studies are essential to learn earthworm community development and soil formation post *** were undertaken at a former steelworks site at Hallside,near Glasgow,UK,reclaimed in the 1990s using a mixture of colliery spoil and sewage *** site was largely planted for production of short rotation coppice willow(Salix spp.).Earthworm inoculation formed a part of the restoration *** monitoring occurred in the interim,but some records of earthworm sampling existed in 2000 and *** study focused on monitoring earthworms and soil properties across the site,drawing comparisons with adjacent unspoiled *** showed that after 22 years,a species-rich community of earthworms(n=16)colonized the site,with endogeic Aporrectodea caliginosa being dominant by number and anecic *** by *** the site,earthworm community density and biomass were 208 individuals m^(-2) and 71 g m^(-2),*** Shannon diversity index for earthworms was 1.89,with an evenness of *** sewage sludge increased the soil organic matter,but the stone content of the colliery spoil prevented digging in some *** chemistry had no negative effect on earthworms,but the compacted substrate did hinder water *** colonized the reclaimed site from adjacent areas,and community structure and density below well-drained,scrub-free willow,birch,and grassland were not significantly different(P>0.05)from those of the adjacent unspoiled *** results show that the historical earthworm inoculation was unnecessary and badly *** reclamations of similar sites can learn from this investigation.

关键词： colliery spoil colonization inoculation land reclamation pedogenesis rehabilitation sewage sludge willow

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