Suchergebnisse
Filter
10 Ergebnisse
Sortierung:
Trend der Pflanzenschutzmittelfrachten in Flussgebieten
In: Wasserwirtschaft: Hydrologie, Wasserbau, Boden, Ökologie ; Organ der Deutschen Vereinigung für Wasserwirtschaft, Abwasser und Abfall, Band 103, Heft 1-2, S. 62-65
ISSN: 2192-8762
Situation der Pflanzenschutzmittelfunde in Oberflächengewässern in Deutschland
In: Wasserwirtschaft: Hydrologie, Wasserbau, Boden, Ökologie ; Organ der Deutschen Vereinigung für Wasserwirtschaft, Abwasser und Abfall, Band 98, Heft 7-8, S. 56-60
ISSN: 2192-8762
Anwendungsbestimmungen zum Schutz vor schädlichen Umweltwirkungen durch den Einsatz von Pflanzenschutzmitteln und ihre Beachtung in der Praxis: Forschungsbericht 297 67 114
In: Texte 99,43
In: Umweltforschungsplan des Bundesministeriums für Umwelt, Naturschutz und Reaktorsicherheit
In: Wasserwirtschaft
A site-specific agricultural water requirement and footprint estimator (SPARE:WATER 1.0) for irrigation agriculture
In: Geoscientific Model Development Discussions 6(1):645-684 doi:10.5194/gmdd-6-645-2013
The water footprint accounting method addresses the quantification of water consumption in agriculture, whereby three types of water to grow crops are considered, namely green water (consumed rainfall), blue water (irrigation from surface or groundwater) and grey water (water needed to dilute pollutants). Most of current water footprint assessments focus on global to continental scale. We therefore developed the spatial decision support system SPARE:WATER that allows to quantify green, blue and grey water footprints on regional scale. SPARE:WATER is programmed in VB.NET, with geographic information system functionality implemented by the MapWinGIS library. Water requirement and water footprints are assessed on a grid-basis and can then be aggregated for spatial entities such as political boundaries, catchments or irrigation districts. We assume in-efficient irrigation methods rather than optimal conditions to account for irrigation methods with efficiencies other than 100%. Furthermore, grey water can be defined as the water to leach out salt from the rooting zone in order to maintain soil quality, an important management task in irrigation agriculture. Apart from a thorough representation of the modelling concept we provide a proof of concept where we assess the agricultural water footprint of Saudi Arabia. The entire water footprint is 17.0 km3 yr−1 for 2008 with a blue water dominance of 86%. Using SPARE:WATER we are able to delineate regional hot spots as well as crop types with large water footprints, e.g. sesame or dates. Results differ from previous studies of national-scale resolution, underlining the need for regional water footprint assessments.
BASE
Empfehlungen zum Forschungsfeld Bioökonomie: Boden, Wasser und Landnutzung ; Herausforderungen, Forschungs-, Technologie- und Handlungsbedarf
In: Berichte aus dem BioÖkonomieRat 01
Relevance of nonfunctional linear polyacrylic acid for the biodegradation of superabsorbent polymer in soils
In: Environmental science and pollution research: ESPR, Band 22, Heft 7, S. 5444-5452
ISSN: 1614-7499
Biodegradability of a polyacrylate superabsorbent in agricultural soil
In: Environmental science and pollution research: ESPR, Band 21, Heft 16, S. 9453-9460
ISSN: 1614-7499
Das Forschungsnetzwerk „Water in Central Asia“ (CAWa) – Von Klimawandel bis Wassermanagement
In: Integratives und nachhaltigkeitsorientiertes Wassermanagement, S. 59-68
Evaluating Today's Landscape Multifunctionality and Providing an Alternative Future: A Normative Scenario Approach
In: Ecology and society: E&S ; a journal of integrative science for resilience and sustainability, Band 15, Heft 3
ISSN: 1708-3087