Journal Article

Differences in root longevity of some tree species

K. E. Black, C. G. Harbron, M. Franklin, D. Atkinson and J. E. Hooker

in Tree Physiology

Volume 18, issue 4, pages 259-264
Published in print April 1998 | ISSN: 0829-318X
Published online April 1998 | e-ISSN: 1758-4469 | DOI:
Differences in root longevity of some tree species

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Although the importance of root production and mortality to nutrient fluxes in ecosystems is widely recognized, the difficulties associated with root measurements have limited the availability of reliable data. We have used minirhizotrons and image analysis to measure root longevity of Prunus avium L., Picea sitchensis (Bong.) Carrière, Acer pseudoplatanus L. and Populus × canadensis cv. Beaupre directly in cohorts of roots. Major differences in the longevity of roots among species were identified. For example, 40% of Prunus avium roots but only 6% of Picea sitchensis roots survived for more than 14 days. Survival analysis of cohorts of roots of Prunus avium and Populus × canadensis revealed differences in the distribution of longevity among cohorts. Genetic, biotic and abiotic factors that may influence longevity are discussed.

Keywords: Acer pseudoplatanus; minirhizotrons; nutrient cycling; Picea sitchensis; Populus × canadensis cv. Beaupre; Prunus avium; survival analysis

Journal Article.  0 words. 

Subjects: Plant Sciences and Forestry

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