Influence of Earthworm Invasion on Redistribution and Retention of Soil Carbon and Nitrogen in Northern Temperate Forests

Bohlen, Patrick J.; Pelletier, Derek M.; Groffman, Peter M.; Fahey, Timothy J.; Fisk, Melany C.

doi:10.1007/s10021-003-0127-y

Cited by 188 publications

(115 citation statements)

References 72 publications

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“…These effects have been observed at sites where earthworms have invaded that had no prior earthworm activity (Bohlen et al 2004;Alban and Berry 1994) and might contribute to short turnover times at the MI sites. However, differences in macrobiotic activity cannot explain differences in carbon dynamics between MA-HF and NH-BF.…”

Section: Discussionmentioning

confidence: 94%

Comparison of soil organic matter dynamics at five temperate deciduous forests with physical fractionation and radiocarbon measurements

et al. 2012

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Forest soils represent a significant pool for carbon sequestration and storage, but the factors controlling soil carbon cycling are not well constrained. We compared soil carbon dynamics at five broadleaf forests in the Eastern US that vary in climate, soil type, and soil ecology: two sites at the University of Michigan Biological Station (MI-Coarse, sandy; MI-Fine, loamy); Bartlett Experimental Forest (NH-BF); Harvard Forest (MA-HF); and Baskett Wildlife Recreation and Education Area (MO-OZ). We quantified soil carbon stocks and measured bulk soil radiocarbon to at least 60 cm depth. We determined surface (0-15 cm) soil carbon distribution and turnover times in free light (unprotected), occluded light (intra-aggregate), and dense (mineral-associated) soil fractions. Total soil carbon stocks ranged from 55 ± 4 to 229 ± 42 Mg C ha -1 and were lowest at MI-Coarse and MO-OZ and highest at MI-Fine and NH-BF. Differences in climate only partly explained differences in soil organic matter 14 C and mean turnover times, which were 75-260 year for free-light fractions, 70-625 year for occluded-light fractions, and 90-480 year for dense fractions. Turnover times were shortest at the warmest site, but longest at the northeastern sites (NH-BF and MA-HF), rather than the coldest sites (MI-Coarse and MI-Fine). Soil texture, mineralogy, drainage, and macrofaunal activity may be at least as important as climate in determining soil carbon dynamics in temperate broadleaf forests.

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Section: Discussionmentioning

confidence: 94%

Comparison of soil organic matter dynamics at five temperate deciduous forests with physical fractionation and radiocarbon measurements

et al. 2012

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“…Exotic earthworms may potentially facilitate honeysuckle shrubs in two ways. First, earthworms can rapidly reduce the forest litter layer (Bohlen et al 2004b), creating the bare soil conditions that favor the growth and establishment of honeysuckle seedlings (Bartuszevige et al 2007;Wilson et al 2013). Second, decay of honeysuckle litter by exotic earthworms may create a pulse of nitrogen during the late winter to early spring that only honeysuckle shrubs are able to exploit.…”

Section: Invasional Meltdown and Climate Changementioning

confidence: 99%

Earthworm, microbial biomass, and leaf litter decay responses after invasive honeysuckle shrub removal from urban woodlands.

Pipal¹

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“…The burrows of anecic earthworms by definition open to the soil surface, providing visual evidence allowing investigators to sample burrow soil [52,53]. Alternatively, the presence of surface-casting species provides investigators with a visual cue to compare drilosphere and nondrilosphere soil by sampling the casts themselves (to compare microfauna of riparian and pasture soils [54]; or to subject to simulated rainfall [55]) or underlying soil [56]. Other visual indicators can be exploited in Northern temperate forests where patches of soil invaded with exotic earthworms contrast greatly with earthworm-free patches where thick organic horizons remain [57,58].…”

Section: Passive Methodsmentioning

confidence: 99%

Methodological Considerations in the Study of Earthworms in Forest Ecosystems

Rhea-Fournier¹,

González²

2017

Forest Ecology and Conservation

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Decades of studies have shown that soil macrofauna, especially earthworms, play dominant engineering roles in soils, affecting physical, chemical, and biological components of ecosystems. Quantifying these effects would allow crucial improvement in biogeochemical budgets and modeling, predicting response of land use and disturbance, and could be applied to bioremediation efforts. Effective methods of manipulating earthworm communities in the field are needed to accompany laboratory microcosm studies to calculate their net function in natural systems and to isolate specific mechanisms. This chapter reviews laboratory and field methods for enumerating and manipulating earthworm populations, as well as approaches toward quantifying their influences on soil processes and biogeochemical cycling.

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Influence of Earthworm Invasion on Redistribution and Retention of Soil Carbon and Nitrogen in Northern Temperate Forests

Cited by 188 publications

References 72 publications

Comparison of soil organic matter dynamics at five temperate deciduous forests with physical fractionation and radiocarbon measurements

Comparison of soil organic matter dynamics at five temperate deciduous forests with physical fractionation and radiocarbon measurements

Earthworm, microbial biomass, and leaf litter decay responses after invasive honeysuckle shrub removal from urban woodlands.

Methodological Considerations in the Study of Earthworms in Forest Ecosystems

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