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| rdf:type
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| Description
| - Using dynamic, mass budget, and empirical models, we quantified sulphate-sulphur (S) leaching from soils in a large central European catchment (upper Vltava River, Czech Republic) over a 110-year period (1900–2010). S inputs to soils with synthetic fertilizers and atmospheric deposition increased in the 1950s–1980s, then rapidly decreased (80%), and remained low since the middle 1990s. The proportion of drained agricultural land rapidly increased from 4–43% between the 1950s and 1990s; then the draining ability of the system slowly decreased due to its aging. Sulphate concentrations in the Vltava exhibited similar trends as the external S inputs, suggesting that they could be explained by changes in atmospheric and fertiliser S inputs. The available data and modelling, however, showed that (i) internal S sources (mineralization of soil organic S in the drained agricultural land), (ii) a hysteresis in S leaching from forest soils (a net S retention at the high S inputs and then a net release at the lowered inputs), and (iii) hydrology must be taken into account. An empirical model was then employed, based on parameters representing hydrology (discharge), external S sources (inputs by synthetic fertilizers and atmospheric deposition), and internal S sources (mineralization related to soil drainage). The model explained 84% of the observed variability in annual S concentrations in the Vltava river during 1900–2010 and showed that forest soils were a net sink (105 kg/ha) while agricultural land was a net source (55 kg/ha) of S during 1960–2010. In the late 1980s, forest soils changed from a sink to a source of S, and the present release of S accumulated in forest soils thus delays recovery of surface waters from acidification, while S losses from agricultural soils increase the risk of future S deficiency in S-demanding crops.
- Using dynamic, mass budget, and empirical models, we quantified sulphate-sulphur (S) leaching from soils in a large central European catchment (upper Vltava River, Czech Republic) over a 110-year period (1900–2010). S inputs to soils with synthetic fertilizers and atmospheric deposition increased in the 1950s–1980s, then rapidly decreased (80%), and remained low since the middle 1990s. The proportion of drained agricultural land rapidly increased from 4–43% between the 1950s and 1990s; then the draining ability of the system slowly decreased due to its aging. Sulphate concentrations in the Vltava exhibited similar trends as the external S inputs, suggesting that they could be explained by changes in atmospheric and fertiliser S inputs. The available data and modelling, however, showed that (i) internal S sources (mineralization of soil organic S in the drained agricultural land), (ii) a hysteresis in S leaching from forest soils (a net S retention at the high S inputs and then a net release at the lowered inputs), and (iii) hydrology must be taken into account. An empirical model was then employed, based on parameters representing hydrology (discharge), external S sources (inputs by synthetic fertilizers and atmospheric deposition), and internal S sources (mineralization related to soil drainage). The model explained 84% of the observed variability in annual S concentrations in the Vltava river during 1900–2010 and showed that forest soils were a net sink (105 kg/ha) while agricultural land was a net source (55 kg/ha) of S during 1960–2010. In the late 1980s, forest soils changed from a sink to a source of S, and the present release of S accumulated in forest soils thus delays recovery of surface waters from acidification, while S losses from agricultural soils increase the risk of future S deficiency in S-demanding crops. (en)
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| Title
| - Sulphate leaching from diffuse agricultural and forest sources in a large central European catchment during 1900-2010
- Sulphate leaching from diffuse agricultural and forest sources in a large central European catchment during 1900-2010 (en)
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| skos:prefLabel
| - Sulphate leaching from diffuse agricultural and forest sources in a large central European catchment during 1900-2010
- Sulphate leaching from diffuse agricultural and forest sources in a large central European catchment during 1900-2010 (en)
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| skos:notation
| - RIV/60077344:_____/14:00424219!RIV14-AV0-60077344
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - I, P(GA526/09/0567), P(GAP504/12/1218)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/60077344:_____/14:00424219
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - modelling; sulphate leaching; sulphur mineralization; diffuse sources (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Science of the Total Environment
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Hejzlar, Josef
- Kopáček, Jiří
- Porcal, Petr
- Posch, M.
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| http://linked.open...ain/vavai/riv/wos
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| issn
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| number of pages
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| http://bibframe.org/vocab/doi
| - 10.1016/j.scitotenv.2013.10.013
|
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