DOI: 10.1007/s10533-015-0127-y
Scopus记录号: 2-s2.0-84944163532
论文题名: Catchment biogeochemistry modifies long-term effects of acidic deposition on chemistry of mountain lakes
作者: Kopáček J. ; Bičárová S. ; Hejzlar J. ; Hynštová M. ; Kaňa J. ; Mitošinková M. ; Porcal P. ; Stuchlík E. ; Turek J.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 125, 期: 3 起始页码: 315
结束页码: 335
语种: 英语
英文关键词: Alpine lakes
; Chloride
; Dissolved organic carbon
; Nitrogen
; Phosphorus
; Sulphate
Scopus关键词: acid deposition
; acidification
; biogeochemistry
; catchment
; cation
; chloride
; concentration (composition)
; dissolved organic carbon
; ionic composition
; lake water
; leaching
; long-term change
; mountain environment
; nitrogen compound
; nutrient availability
; organic nitrogen
; precipitation quality
; sulfur emission
; surface water
; water chemistry
; Carpathians
; Tatra Mountains
英文摘要: Using relationships between the composition of precipitation and emission rates of sulphur and nitrogen compounds and dust from 1978 to 2012, we modelled concentrations of sulphate, nitrate, ammonium, chloride, and base cations and pH of precipitation in the Tatra Mountains (central Europe) back to 1900. The modelled precipitation chemistry exhibited a high degree of temporal coherence with the lake water chemistry in 1937 and during the period 1984–2014. The ionic composition of lake water reflected progress in their acidification until the late 1980s, and then a rapid recovery. The response of lake water chemistry to changes in precipitation chemistry differed for individual ions, nutrients, and among lakes, predominantly reflecting the proportions of soil in their catchments. Important differences occurred in nutrient concentrations. In-lake concentrations of dissolved organic carbon (DOC) and total organic nitrogen (TON) exhibited inverse patterns to nitrate. DOC and TON were higher in lakes with a higher proportion of soil in the catchments, and increased in many lakes during recovery from acidification, while nitrate concentrations were higher and decreased most steeply in the catchments with sparse soils. Lake water concentrations of total phosphorus (TP) were spatially similar to that of DOC and TON, but increased most steeply during recovery in lakes with a high proportion of till soils. Our results indicate that chemical recovery of mountain ecosystems is seriously modified by catchment biogeochemistry and may result not only in elevated DOC leaching, but also in an increase of terrestrial export of TON and TP to the receiving surface waters. © 2015, Springer International Publishing Switzerland. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83477
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: Biology Centre CAS, Institute of Hydrobiology, Na Sádkách 7, České Budějovice, Czech Republic; University of South Bohemia, Faculty of Science, České Budějovice, Czech Republic; Geophysical Institute, Slovak Academy of Sciences, Stará Lesná, Slovakia; Hydrobiological Station, Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Prague, Czech Republic; Slovak Hydrometeorological Institute, Bratislava, Slovakia
Recommended Citation:
Kopáček J.,Bičárová S.,Hejzlar J.,et al. Catchment biogeochemistry modifies long-term effects of acidic deposition on chemistry of mountain lakes[J]. Biogeochemistry,2015-01-01,125(3)