Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10250271 | Dendrochronologia | 2005 | 7 Pages |
Abstract
Ring diameters and ring number counts were recorded from Calluna stem cross-sections harvested during an N manipulation experiment. The application of dendrochronological methods permitted accurate ageing of shrubs growing in a heathland of known age. Linear regression analyses demonstrated a highly significant association between increasing levels of N input and stem diameter in both watered and droughted plots (droughted in 1997 only). N inputs were identified as the most significant environmental stressor, appearing to speed ageing vis the Calluna growth cycle. Drought sensitivity was noted in the high N treatment plots (120 kg N haâ1 yrâ1) with decreased stem diameters. This may have implications in the response of Calluna growth under current climate change scenarios.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Jonathan G.A. Lageard, Deirdre B. Wilson, Neil Cresswell, Leigh E. Cawley, Helen E. Jones, Simon J.M. Caporn,