Results 1 to 10 of about 125,449 (211)
Nitrite regeneration in the oligotrophic Atlantic Ocean [PDF]
The recycling of scarce nutrient resources in the sunlit open ocean is crucial to ecosystem function. Nitrification directs ammonium (NH4+) derived from organic matter decomposition towards the regeneration of nitrate (NO3-), an important resource for ...
D. R. Clark +9 more
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Sethʼs Unique Head Inspiration [PDF]
There has been much debate over the years about the true nature of the animal god Seth the sacred that he enigmatic personality, and the reason for the controversy is the animal’s head that does not belong to a specific animal.
Heba Abd-El Monsef Nasef
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In Niedersachsen nimmt der Einsatz mechanischer Verfahren seit einigen Jahren zu. Die Unkrautregulierung im Ökolandbau ist mit reihenunabhängiger Technik wie dem Zinkenstriegel oder der Sternrollhacke ein gängiges Verfahren, da diese Technik auf den ...
Warnecke-Busch, Goßswinth +1 more
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Eine Möglichkeit der Reduktion von Herbiziden im konventionellen Zuckerrübenanbau bietet die mechanische und mechanisch-chemische Unkrautregulierung mit Scharhacken in Verbindung mit einer Bandspritzeinrichtung.
Warnecke-Busch, Goßswinth
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ERSEM 15.06: a generic model for marine biogeochemistry and the ecosystem dynamics of the lower trophic levels [PDF]
The European Regional Seas Ecosystem Model (ERSEM) is one of the most established ecosystem models for the lower trophic levels of the marine food web in the scientific literature.
M. Butenschön +17 more
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The influence of ocean acidification on nitrogen regeneration and nitrous oxide production in the northwest European shelf sea [PDF]
The assimilation and regeneration of dissolved inorganic nitrogen, and the concentration of N2O, was investigated at stations located in the NW European shelf sea during June/July 2011. These observational measurements within the photic zone demonstrated
D. R. Clark +4 more
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Internal Waves at the UK Continental Shelf: Automatic Mapping Using the ENVISAT ASAR Sensor
Oceanic internal waves occur within stratified water along the boundary between water layers of different density and are generated when strong tidal currents flow over seabed topography.
Andrey A. Kurekin +2 more
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The significance of nitrogen regeneration for new production within a filament of the Mauritanian upwelling system [PDF]
The Lagrangian progression of a biological community was followed in a filament of the Mauritanian upwelling system, north-west Africa, during offshore advection.
D. R. Clark +3 more
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Background Numerous man-made structures (MMS) have been installed in various parts of the ocean (e.g. oil and gas structures, offshore wind installations). Many are now at, or nearing, the end of their intended life.
Anaëlle J. Lemasson +9 more
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The assessment of a global marine ecosystem model on the basis of emergent properties and ecosystem function: a case study with ERSEM [PDF]
Ecosystem models are often assessed using quantitative metrics of absolute ecosystem state, but these model–data comparisons are disproportionately vulnerable to discrepancies in the location of important circulation features.
L. de Mora, M. Butenschön, J. I. Allen
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