DOI: 10.1016/j.foreco.2016.03.002
Scopus记录号: 2-s2.0-84960156485
论文题名: Application of lime (CaCO3) to promote forest recovery from severe acidification increases potential for earthworm invasion
作者: Homan C. ; Beier C. ; McCay T. ; Lawrence G.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 368 起始页码: 39
结束页码: 44
语种: 英语
英文关键词: Acid rain
; Ecosystem restoration
; Invasive species
; Lumbricus terrestris
; Northern hardwood forest
; Soil chemistry
Scopus关键词: Acid rain
; Calcium carbonate
; Conservation
; Cost effectiveness
; Ecology
; Forestry
; Hardwoods
; Lime
; Plants (botany)
; Soils
; Ecosystem restoration
; Invasive species
; Lumbricus terrestris
; Northern hardwood forest
; Soil chemistry
; Ecosystems
; acid rain
; acid soil
; acidification
; biological invasion
; earthworm
; environmental restoration
; forest ecosystem
; forest floor
; invasive species
; leaf litter
; lime
; soil chemistry
; soil fauna
; species richness
; survivorship
; toxicity
; Adirondack Mountains
; New York [United States]
; United States
; Lumbricus terrestris
英文摘要: The application of lime (calcium carbonate) may be a cost-effective strategy to promote forest ecosystem recovery from acid impairment, under contemporary low levels of acidic deposition. However, liming acidified soils may create more suitable habitat for invasive earthworms that cause significant damage to forest floor communities and may disrupt ecosystem processes. We investigated the potential effects of liming in acidified soils where earthworms are rare in conjunction with a whole-ecosystem liming experiment in the chronically acidified forests of the western Adirondacks (USA). Using a microcosm experiment that replicated the whole-ecosystem treatment, we evaluated effects of soil liming on Lumbricus terrestris survivorship and biomass growth. We found that a moderate lime application (raising pH from 3.1 to 3.7) dramatically increased survival and biomass of L. terrestris, likely via increases in soil pH and associated reductions in inorganic aluminum, a known toxin. Very few L. terrestris individuals survived in unlimed soils, whereas earthworms in limed soils survived, grew, and rapidly consumed leaf litter. We supplemented this experiment with field surveys of extant earthworm communities along a gradient of soil pH in Adirondack hardwood forests, ranging from severely acidified (pH < 3) to well-buffered (pH > 5). In the field, no earthworms were observed where soil pH < 3.6. Abundance and species richness of earthworms was greatest in areas where soil pH > 4.4 and human dispersal vectors, including proximity to roads and public fishing access, were most prevalent. Overall our results suggest that moderate lime additions can be sufficient to increase earthworm invasion risk where dispersal vectors are present. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64975
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest and Natural Resources Management, SUNY College of Environmental Science and Forestry, Syracuse, NY, United States; Department of Biology, Colgate University, United States; Water Science Center, US Geological Survey, Troy, NY, United States
Recommended Citation:
Homan C.,Beier C.,McCay T.,et al. Application of lime (CaCO3) to promote forest recovery from severe acidification increases potential for earthworm invasion[J]. Forest Ecology and Management,2016-01-01,368