GIS-based risk assessment for identifying source areas of non-point nutrient emissions by water erosion (Odra Basin and sub catchment Uecker)

Autor:	Ralf Dannowski, Detlef Deumlich, I. Kajewski, M Tippl, Waldemar Mioduszewski
Rok vydání:	2005
Předmět:	Hydrology geography geography.geographical_feature_category Drainage basin Soil Science Sediment Structural basin chemistry.chemical_compound Nutrient Water Framework Directive Nitrate chemistry Erosion Environmental science NIIRS Agronomy and Crop Science
Zdroj:	Archives of Agronomy and Soil Science. 51:447-458
ISSN:	1476-3567 0365-0340
DOI:	10.1080/03650340500186397
Popis:	A methodology is presented for identifying and assessing source areas of sediment, phosphorus and nitrate emissions into surface waters and river systems of the South Baltic unconsolidated rock region by water erosion. This task is included into the characterization of the pressures and impacts in river basins as an important milestone in implementing the EC Water Framework Directive set out by 2004. The Nutrient Input Into River Systems (NIIRS) approach has been developed and tested in the Odra river basin in Poland, Czech Republic and Germany. Mesoscale distributed analyses are facilitated for identifying erosion risk areas with non-point phosphorus and nitrate inputs into water bodies via surface flow. Using statistical information and available geodata, analyses are based on empirical (NIIRS), but preferably process-oriented modelling (EROSION-3D). Thus, besides better understanding the system behaviour, detailed quantitative knowledge of spatial nutrient export rates from potential source areas will ...
Databáze:	OpenAIRE
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