DOI: 10.1016/j.marpolbul.2016.06.096
Scopus记录号: 2-s2.0-84977070667
论文题名: In situ soft sediment nutrient enrichment: A unified approach to eutrophication field experiments
作者: Douglas E.J. ; Pilditch C.A. ; Hines L.V. ; Kraan C. ; Thrush S.F.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 111, 期: 2018-01-02 起始页码: 287
结束页码: 294
语种: 英语
英文关键词: Benthic
; Enrichment method
; Fertiliser
; Intertidal
; Macrofauna
; Pore water
Scopus关键词: Fertilizers
; Sediments
; Water
; Ammonium concentrations
; Benthic
; Enrichment techniques
; Environmental gradient
; Intertidal
; Macrofauna
; Pore waters
; Sedimentary environment
; Eutrophication
; ammonia
; fertilizer
; nitrogen
; water
; ammonium derivative
; fertilizer
; ammonium
; concentration (composition)
; environmental gradient
; eutrophication
; fertilizer application
; field method
; intertidal environment
; marine sediment
; meta-analysis
; porewater
; sediment pollution
; Article
; concentration (parameters)
; controlled study
; environmental enrichment
; eutrophication
; fertilizer application
; field experiment
; intertidal zone
; macrofauna
; nonhuman
; nutrient
; nutrient enrichment
; sediment
; analysis
; chemistry
; estuary
; Ammonium Compounds
; Estuaries
; Eutrophication
; Fertilizers
; Geologic Sediments
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Adding fertiliser to sediments is an established way of studying the effects of eutrophication but a lack of consistent methodology, reporting on enrichment levels, or guidance on application rates precludes rigorous synthesis and meta-analysis. We developed a simple enrichment technique then applied it to 28 sites across an intertidal sandflat. Fertiliser application rates of 150 and 600 g N m− 2 resulted in pore water ammonium concentrations respectively 1–110 and 4–580 × ambient, with greater elevations observed in deeper (5–7 cm) than surface (0–2 cm) sediments. These enrichment levels were similar to eutrophic estuaries and were maintained for at least seven weeks. The high between-site variability could be partially explained by the sedimentary environment and macrofaunal community (42%), but only at the high application rate. We suggest future enrichment studies should be conducted in situ across large environmental gradients to incorporate real world complexity and increase generality of conclusions. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86757
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: School of Science, University of Waikato, Private Bag 3105, Hamilton, New Zealand; National Institute of Water and Atmospheric Research, P.O. Box 11-115, Hamilton, New Zealand; Institute of Marine Science, University of Auckland, Private Bag 92019, Auckland, New Zealand; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Department of Functional Ecology, Am Handelshafen 12, Bremerhaven, Germany
Recommended Citation:
Douglas E.J.,Pilditch C.A.,Hines L.V.,et al. In situ soft sediment nutrient enrichment: A unified approach to eutrophication field experiments[J]. Marine Pollution Bulletin,2016-01-01,111(2018-01-02)