DOI: 10.1016/j.quascirev.2015.04.019
Scopus记录号: 2-s2.0-84930206548
论文题名: Testing peatland water-table depth transfer functions using high-resolution hydrological monitoring data
作者: Swindles G.T. ; Holden J. ; Raby C.L. ; Turner T.E. ; Blundell A. ; Charman D.J. ; Menberu M.W. ; Kløve B.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 120 起始页码: 107
结束页码: 117
语种: 英语
英文关键词: Holocene
; Hydrology
; Palaeoecology
; Peat
; Testate amoebae
; Transfer function
; Wetlands
Scopus关键词: Groundwater
; Hydrology
; Peat
; Protozoa
; Wetlands
; Community composition
; Directional changes
; Environmental variability
; Holocenes
; Hydrological monitoring
; Palaeoecology
; Statistical testing
; Testate amoebae
; Transfer functions
; community composition
; environmental monitoring
; moss
; paleoecology
; paleohydrology
; peatland
; protist
; transfer function
; water depth
; water table
; well
; England
; Finland
; United Kingdom
; Wales
; Bryophyta
英文摘要: Transfer functions are now commonly used to reconstruct past environmental variability from palaeoecological data. However, such approaches need to be critically appraised. Testate amoeba-based transfer functions are an established method for the quantitative reconstruction of past water-table variations in peatlands, and have been applied to research questions in palaeoclimatology, peatland ecohydrology and archaeology. We analysed automatically-logged peatland water-table data from dipwells located in England, Wales and Finland and a suite of three year, one year and summer water-table statistics were calculated from each location. Surface moss samples were extracted from beside each dipwell and the testate amoebae community composition was determined. Two published transfer functions were applied to the testate-amoeba data for prediction of water-table depth (England and Europe). Our results show that estimated water-table depths based on the testate amoeba community reflect directional changes, but that they are poor representations of the real mean or median water-table magnitudes for the study sites. We suggest that although testate amoeba-based reconstructions can be used to identify past shifts in peat hydrology, they cannot currently be used to establish precise hydrological baselines such as those needed to inform management and restoration of peatlands. One approach to avoid confusion with contemporary water-table determinations is to use residuals or standardised values for peatland water-table reconstructions. We contend that our test of transfer functions against independent instrumental data sets may be more powerful than relying on statistical testing alone. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59913
Appears in Collections: 过去全球变化的重建
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作者单位: water at leeds, School of Geography, University of Leeds, United Kingdom; Geography, College of Life and Environmental Sciences, University of Exeter, United Kingdom; Water Resources and Environmental Engineering Research Group, Faculty of Technology, University of Oulu, Finland; Institute of Integrative Biology, University of Liverpool, United Kingdom
Recommended Citation:
Swindles G.T.,Holden J.,Raby C.L.,et al. Testing peatland water-table depth transfer functions using high-resolution hydrological monitoring data[J]. Quaternary Science Reviews,2015-01-01,120