DOI: 10.1016/j.foreco.2014.08.017
Scopus记录号: 2-s2.0-84908078054
论文题名: Initial effects of forest N, Ca, Mg and B large-scale fertilization on surface water chemistry and leaching from a catchment in central Sweden
作者: Lundin L. ; Nilsson T.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 331 起始页码: 218
结束页码: 226
语种: 英语
英文关键词: Boron
; Catchment hydrology
; Fertilization
; Forest
; Nitrogen
; Water chemistry
Scopus关键词: Nitrogen
; Catchment hydrology
; Fertilization
; Forest
; Surface-water chemistry
; Water chemistry
; Boron
; boron
; calcium
; catchment
; fertilizer application
; forestry practice
; hydrological change
; leaching
; magnesium
; nitrate
; nitrogen
; pH
; water chemistry
; Sweden
英文摘要: Highly increased use of biomass production is placing great demands on Swedish forests. Several silvicultural measures can be implemented to increase forest production and fertilization being addressed in this paper is one. Forest companies are now increasingly applying fertilizer, with the main nutrient needed for high forest growth being nitrogen (N).This study investigated how commercial N fertilization (150kgN/ha, including also Ca, Mg and B) of the 45ha forest catchment Risfallet in central Sweden affected chemical composition and runoff export in stream water during one year after the fertilization. This well-defined and long-term monitored catchment proved very suitable for studies of water quality and nutrient losses. The fertilizer consisted of ammonium nitrate (50/50 ammonium and nitrate, respectively), plus calcium (Ca, 22kgha-1) and magnesium (Mg, 12kgha-1) to mitigate acidification and boron (B 1.1kgha-1) to compensate for decreased boron availability. The study was carried out according to the paired catchment method using a control area and a calibration period. Data from the after treatment period were compared with previous 25-year monitoring data for the catchment and also data for a similar 83ha control catchment, Gusseltjärn, in the same region. During the first year after treatment, the nitrate concentration in stream water increased from 0.05mgL-1 to 3.3mgL-1 on average. Other elements showing increased concentrations were ammonium (300%), B (3-fold), Mg (80%), Ca (60%), potassium (K) (50%) and sodium (Na) (40%). The pH decreased in the first half-year by 0.2 pH-units. One year after treatment, 14% of the N applied had leached from the catchment. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65757
Appears in Collections: 影响、适应和脆弱性
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作者单位: Swedish University of Agricultural Sciences, Department of Soil and Environment, P.O. Box 7014, Uppsala, Sweden
Recommended Citation:
Lundin L.,Nilsson T.. Initial effects of forest N, Ca, Mg and B large-scale fertilization on surface water chemistry and leaching from a catchment in central Sweden[J]. Forest Ecology and Management,2014-01-01,331