DOI: 10.1007/s10533-018-0434-1
Scopus记录号: 2-s2.0-85044092260
论文题名: Earthworm impacts on trace metal (Al, Fe, Mo, Cu, Zn, Pb) exchangeability and uptake by young Acer saccharum and Polystichum acrostichoides
作者: Richardson J.B. ; Blossey B. ; Dobson A.M.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 138, 期: 2 起始页码: 103
结束页码: 119
语种: 英语
英文关键词: Aluminium
; European earthworms
; Foliar tissue
; Micronutrients
; Trace elements
Scopus关键词: Acer
; Acer saccharum
; Polystichum
; Polystichum acrostichoides
英文摘要: Non-native earthworms are a continued source of environmental change in the northeastern United States that may affect trace metals in the plant-soil system, with largely unknown effects. We assessed earthworm impacts on exchangeable and strong acid extractable (total) concentrations and pools of Al, Fe, Cu, Zn, Mo, Pb in non-point source polluted, forest soil horizons (Organic, A, and B) and foliar metals concentrations in young (< 3 years) Acer saccharum and Polystichum acrostichoides at four proximal forests in the Finger Lakes Region of New York. We observed decreasing total trace metal Organic horizon pools and increasing total trace metal A horizon concentrations as a function of increasing earthworm biomass. Earthworms had limited effects on exchangeable concentrations in A and B horizons and total metal concentrations in the B horizon. Foliar trace metal concentrations in Acer were better explained by earthworm biomass than soil concentrations but foliar concentrations for Polystichum were poorly predicted by both earthworm biomass and soil metal concentrations. Our results suggest that earthworms can affect trace metal uptake by some plants, but not by increasing soil trace metal exchangeability or from changing soil properties (pH, %SOM, or cation exchange capacity). Instead, non-native earthworms may indirectly alter understory plant uptake of trace metals. © 2018, Springer International Publishing AG, part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83170
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, United States; Department of Geosciences, University of Massachusetts Amherst, 233 Morrill Hall Science Center, Amherst, MA, United States; Department of Natural Resources, Cornell University, Ithaca, NY, United States; Yale School of Forestry and Environmental Studies, Yale University, New Haven, CT, United States
Recommended Citation:
Richardson J.B.,Blossey B.,Dobson A.M.. Earthworm impacts on trace metal (Al, Fe, Mo, Cu, Zn, Pb) exchangeability and uptake by young Acer saccharum and Polystichum acrostichoides[J]. Biogeochemistry,2018-01-01,138(2)