Year-round grazing to counteract effects of atmospheric nitrogen deposition may aggravate these effects
| Autor: | M. van Til, Agata Klimkowska, H.F. van Dobben, G.W.W. Wamelink, Pieter A. Slim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
trends
rabbits Nitrogen Health Toxicology and Mutagenesis Biodiversity chemistry.chemical_element netherlands Toxicology Biodiversity and Policy Grazing Biodiversiteit en Beleid Animals Soil Pollutants Herbivory Animal Husbandry Ecosystem Air Pollutants Atmosphere CL - Ecological Models and Monitoring General Medicine Vegetation Pollution Manure plant diversity CE - Vegetation and Landscape Ecology chemistry Agronomy CL - Ecologische Modellen en Monitoring Hay responses Environmental science Cattle Eutrophication Deposition (chemistry) |
| Zdroj: | Environmental Pollution 195 (2014) Environmental Pollution, 195, 226-231 |
| ISSN: | 0269-7491 |
| Popis: | Excessive nitrogen input in natural ecosystems is a major threat to biodiversity. A coastal dune area near Amsterdam in the Netherlands suffers from high atmospheric nitrogen deposition affecting sensitive habitats such as fixed coastal dunes with herbaceous vegetation (‘grey dunes’). To mitigate its effect year round grazing was applied from 2007 until 2012. In winter, when natural food supply is low, the cattle received supplementary hay that caused additional inputs of nitrogen. Estimates based on nitrogen contents of hay, as well as of manure, showed the input through winter feeding (c. 3–14 kg N ha-1.y-1) is in the same order of magnitude as both the actual deposition (c. 17 kg N ha-1.y-1) and the critical load for a number of herbaceous habitat types (10–15 kg N ha-1.y-1). Locally, the effect of winter feeding adds to the effect of nitrogen redistribution within the area caused by the cattle's terrain usage. We conclude that winter feeding may aggravate effects of atmospheric nitrogen deposition. Keywords: Vegetation management; Manure; Nitrogen; Eutrophication; Natura 2000; Grey dune |
| Databáze: | OpenAIRE |
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