The objective of this thesis was to determine how aspen (Populus tremuloides Michx.) root systems and suckering are affected by decking area (site of log processing and storage) disturbances and seasonal timing of these disturbances. In a field study, summer-built log decks reduced regeneration by half compared to fall-built decks, and if decks were built in the fall, 11 month and 1.5-3 month storage were similar in their impact. A growth-chamber study examined the timing of traffic-induced wounding of the root system and simulated log storage on aspen root systems and suckering. For both summer and winter treatments the combination of root wounding and log storage killed nearly the entire root system and prevented suckering. Root wounding and log storage alone caused a 35-40% reduction in living root mass, carbohydrate reserves, and sucker growth. Sucker numbers were reduced by one half for the winter but were unaffected for the summer.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:AEU.10048/646 |
| Date | 11 1900 |
| Creators | Renkema, Kevin N |
| Contributors | Lieffers, Victor J. (Renewable Resources), Landhusser, Simon M. (Renewable Resources), Naeth, M. Anne (Renewable Resources), Bork, Edward W. (Agricultural, Food, & Nutritional Science) |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 287352 bytes, application/pdf |
| Relation | Renkema, KR, Lieffers, VJ, and Landhusser, SM (2009) Aspen regeneration on log decking areas as influenced by season and duration of log storage. New Forests. DOI 10.1007/s11056-009-9150-y., Renkema, KR, Landhusser, SM, and Lieffers, VJ (2009) Suckering response of aspen to traffic-induced-root wounding and the barrier-effect of log storage. Forest Ecology Management. DOI: 10.1016/j.foreco.2009.08.006. |
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