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Title: Zur Verfügbarkeit und Freisetzung von Nährstoffen in einer intensiv bewirtschafteten Moorwiese nach einer gewässerbaulichen Maßnahme
Author(s): Schulz, Horst
Issue Date: 2014
Type: Article
Language: English
Publisher: Hercynia - Ökologie und Umwelt in Mitteleuropa
Abstract: A bog meadow at the Augraben (Altmark, Saxony-Anhalt) as well as the waters of the drainage systems and bordering ditches were investigated for their total contents and soluble concentrations of carbon, nitrogen, phosphorus, sulphur, potassium, calcium, magnesium, iron, aluminium, manganese, chloride, ammonium, nitrate, sulfate and phosphate. In addition natural isotope variations of carbon (13C/12C) and nitrogen (15N/14N) in the soil were assessed. Intensive grassland use and changes in the groundwater levels, as well as a soil pH-value of 7.2, led to an increased mineralization of the organic substance. Accordingly, particularly high levels of sulphate (0.13 mg S/g dry weight, nitrate (0.1 mg N/g dry weight), and calcium (0.73 mg/g dry weight) ions were found in the top soil. In contrast the level of however phosphate (< 0.003 mg P/g dry weight) remained low. The data indicate that nitrate and sulphate are leaching from the soil into the bordering ditches via the draining systems, but phosphate is presumably bound in form of calcium sulphate. In this process may also iron-(III)-hydroxide/oxide hydrates play an important role in the immobilization of phosphate.Key words: bog meadow, intensive grassland use, soil, surface water, nutrients
Annotations: Die Hercynia publiziert Originalbeiträge mit dem Schwerpunkt Ökologie (mit ihren vielseitigen Aspekten der Biodiversität), Botanik, Zoologie, Geologie und Geografie, den anwendungsorientierten Bereichen des Natur- und Umweltschutzes, sowie der Land- und Forstwirtschaft.
ISSN: 2195-531X
Open Access: Open access publication
License: (CC BY-ND 4.0) Creative Commons Attribution NoDerivatives 4.0(CC BY-ND 4.0) Creative Commons Attribution NoDerivatives 4.0
Journal Title: Hercynia - Ökologie und Umwelt in Mitteleuropa
Volume: 47
Issue: 1
Original Publication:
Page Start: 1
Page End: 11
Appears in Collections:Open Journal System ULB

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