Using nitrogen-15 to quantify vegetative buffer effectiveness for sequestering nitrogen in runoff

Previous studies have observed higher levels of soluble nutrients leaving vegetative buffers than entering them, suggesting that the buffers themselves are acting as a source rather than a sink by releasing previously stored nutrients. This study used 98 atom % 15N-labeled KNO3 at a rate of 5 kg ha(...

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Veröffentlicht in:	Journal of environmental quality 2004-11, Vol.33 (6), p.2252-2262
Hauptverfasser:	Bedard-Haughn, A, Tate, K.W, Van Kessel, C
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption agricultural runoff Agronomy. Soil science and plant productions Applied sciences Biological and medical sciences Buffers conservation buffers Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics environmental fate Environmental Monitoring - methods Exact sciences and technology Farms filter strips Fundamental and applied biological sciences. Psychology grazing ground vegetation irrigation Irrigation systems losses from soil Nitrogen Nitrogen - isolation & purification Nitrogen Isotopes - analysis nitrogen sequestration nutrient uptake Nutrients Organic nitrogen Pasture pastures Plants Pollution pollution control Pollution, environment geology Rain Runoff Soil conservation Soil Pollutants - isolation & purification soil transport processes stable isotopes Vegetables Water Movements Water Pollutants - isolation & purification water pollution
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