e-space
Manchester Metropolitan University's Research Repository

Phosphorus supply influences heathland responses to atmospheric nitrogen deposition

Pilkington, Michael G. and Caporn, Simon J.M. and Cresswell, Neil and Lee, John A. and Emmett, Bridget A. and Bagchi, Robert (2007) Phosphorus supply influences heathland responses to atmospheric nitrogen deposition. ISSN 0269-7491

Full text not available from this repository.

Abstract

On an upland moor dominated by pioneer Calluna vulgaris and with an understorey of mosses and lichens, experimental plots were treated with factorial combinations of nitrogen (N) at +0 and +20kg Nha(-1)yr(-1), and phosphorus (P) at +0 and +5kg Pha(-1)yr(-1). Over the 4-year duration of the experiment, the cover of the Calluna canopy increased in density over time as part of normal phenological development. Moss cover increased initially in response to N addition but then remained static; increases in cover in response to P addition became stronger over time, eventually causing reductions in the cover of the dominant Calluna canopy. Lichen cover virtually disappeared within 4 years in plots receiving +20kg Nha(-1)yr(-1) and also in separate plots receiving +10kg Nha(-1)yr(-1), but this effect was reversed by the addition of P. Phosphorus supply increased the cover of understorey mosses, which in turn caused decreases in the cover of the dominant Calluna canopy.

Impact and Reach

Statistics

Downloads
Activity Overview
0Downloads
32Hits

Additional statistics for this dataset are available via IRStats2.

Altmetric

Actions (login required)

Edit Item Edit Item