DOI: 10.1016/j.foreco.2012.09.014
Scopus记录号: 2-s2.0-84867385345
论文题名: Long-term effects of ash fertilization on runoff water quality from drained peatland forests
作者: Piirainen S. ; Domisch T. ; Moilanen M. ; Nieminen M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 287 起始页码: 53
结束页码: 66
语种: 英语
英文关键词: Drainage water
; Heavy metals
; Nitrogen
; Phosphorus
; Potassium
; Sulfate
Scopus关键词: Bare grounds
; Boreal peatlands
; Dissolved organic carbon
; Drainage water
; Energy productions
; Harmful effects
; Long-term changes
; Long-term effects
; Peat ash
; Peatland
; Runoff water
; Site types
; Standing tree
; Sulfate
; Tree growth
; Tree stocks
; Water samples
; Wood ash
; Catchments
; Forestry
; Heavy metals
; Leaching
; Nitrogen
; Peat
; Phosphorus
; Potassium
; Sodium
; Stream flow
; Wastewater disposal
; Water quality
; Wetlands
; Wood
; Runoff
; ash
; boreal forest
; catchment
; chloride
; concentration (composition)
; dissolved organic carbon
; drainage water
; fertilizer application
; grass
; heavy metal
; leaching
; long-term change
; metal
; moss
; nature-society relations
; nonmetal
; nutrient cycling
; peatland
; runoff
; sulfate
; water quality
; Acidity
; Ash
; Fertilization
; Forests
; Peat
; Phosphorus
; Potassium
; Runoff
; Stream Flow
; Water Quality
; Wetlands
; Carex
; Sphagnum
英文摘要: The increasing use of wood and peat in energy production has created a potential to utilize wood and peat ashes as forest fertilizers on a wide scale. Previous studies have shown that tree growth in peatland benefits most from ash fertilization. However, possible harmful effects on recipient watercourses have prevented any larger-scale fertilization activity. The objective of this study was to examine the long-term changes in runoff acidity and the transport of nutrients, heavy metals and dissolved organic carbon via drainage water from drained boreal peatland catchments fertilized with wood or peat ash. The hypotheses were that the site's peat type, the origin and formula of the ash and the time of application have an influence on leaching amounts. Therefore, the studied catchments represented different peat (Carex or Sphagnum) and site types with different standing tree stocks (8-127m3ha-1). Loose, self-hardened and drum-granulated ashes (wood and peat ashes) were used and applied (5000-6500kgha-1) either in winter on snow or in summer on bare ground. Water samples from the runoff were taken over a 10-11-year period following the applications. After 10-11years from the treatments, the concentrations of S, K, Na, Cl- , and Mg in the runoff water were still higher at the wood ash treatments compared to the controls. Leaching of elements from peat ash was lower than from wood ash due to the lower content of elements. We estimated that 15-52% of the added S and 2-28% of the added K were leached from the wood and peat ashes during the study period. Leaching of S was the highest after the winter application and higher from the Sphagnum than from the Carex peat dominated catchments. The leaching of K was the highest after the summer application and was the lowest from the catchments having the highest tree stock. No increased leaching of P, N, dissolved organic carbon or heavy metals was detected. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66866
Appears in Collections: 影响、适应和脆弱性
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作者单位: Finnish Forest Research Institute, P.O. Box 68, Joensuu, FI-80101 Joensuu, Finland; Finnish Forest Research Institute, P.O. Box 18, Vantaa, FI-01301 Vantaa, Finland; Finnish Forest Research Institute, P.O. Box 413, Oulu, FI-90014 Oulun yliopisto, Finland
Recommended Citation:
Piirainen S.,Domisch T.,Moilanen M.,et al. Long-term effects of ash fertilization on runoff water quality from drained peatland forests[J]. Forest Ecology and Management,2013-01-01,287