2005
DOI: 10.1016/j.limno.2005.06.005
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Mesoscalic estimation of nitrogen discharge via drainage systems

Abstract: A complex approach has been developed for estimating mesoscalic nitrogen discharges via drainage systems using spatial information about land use, drainage areas, nitrogen balances and soil and site characteristics. Determining the total drainage area involves certain difficulties for larger areas, as on the one hand, the available databases are incomplete, and on the other hand the localisation and digitalisation of large subsurface drainage areas is a very timeconsuming process. Knowledge of the history and … Show more

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Cited by 16 publications
(14 citation statements)
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“…The percentage of tiled drained areas can be derived from digitalised tile drained data for representative areas. Based on spatial analysis of the soil and site properties on these representative tile drained areas, the percentage of tile drained areas could be transferred to a whole catchment area (BALZER, 2010;HIRT et al, 2005a, b).…”
Section: Size Of Tile Drained Areasmentioning
confidence: 99%
“…The percentage of tiled drained areas can be derived from digitalised tile drained data for representative areas. Based on spatial analysis of the soil and site properties on these representative tile drained areas, the percentage of tile drained areas could be transferred to a whole catchment area (BALZER, 2010;HIRT et al, 2005a, b).…”
Section: Size Of Tile Drained Areasmentioning
confidence: 99%
“…Seasonal changes in the hydrological and thermal characteristics of rivers also impact the ecological state of waters and environmental conditions. The variability of hydrometeorological factors impacts the river regime, but is also an element that shapes the dynamics of outflow of biogenes (nitrogen and phosphorus) from the catchment area, which are also characterised by a clear seasonal diversity [5][6][7][8]. The conditions under which a watercourse is supplied and the exchange of waters and biogenic substances takes place impact changes in the physical and chemical properties of waters, and in consequence the ecological state of waters [9].…”
Section: Introductionmentioning
confidence: 99%
“…The diffuse pollution of water in small streams of headwater regions of highlands and peneplains of the Czech Republic has been recognized as a serious problem (Doležal and Kvítek, 2004). Tile drainage has been found to be a significant factor accelerating nutrient, especially nitrogen, leaching from catchments (Borin et al , 2000; Helwig et al , 2002; Honisch et al , 2002; Hirt et al , 2005). More than 25% of Czech agricultural land (ha 1·065 million) has been drained (Kulhavý et al , 2007), and a significant portion of stream flow comes from tile drainage outlets.…”
Section: Introductionmentioning
confidence: 99%