Climate-sensitive height–age models for top height trees in natural and reclaimed oil sands stands in Alberta, Canada

Author:

Yang Yuqing1,Huang Shongming1,Vassov Robert2,Pinno Brad3,Chhin Sophan4

Affiliation:

1. Biometrics Unit, Forest Stewardship and Trade Branch, Alberta Agriculture and Forestry, 9920-108 Street, Edmonton, AB T5K 2M4, Canada.

2. Canadian Natural Albian Sands, P.O. Box 5670, Fort McMurray, AB T9H 4W1, Canada.

3. Department of Renewable Resources (338B Earth Sciences Building), University of Alberta, Edmonton, AB T6G 2H1, Canada.

4. Division of Forestry and Natural Resources (322 Percival Hall), West Virginia University, P.O. Box 6125, Morgantown, WV 26506-6125, USA.

Abstract

Climate-sensitive height–age models were developed for top height trees of trembling aspen (Populus tremuloides Michx.), jack pine (Pinus banksiana Lamb.), and white spruce (Picea glauca (Moench) Voss) in natural and reclaimed oil sands stands. We used stem analysis data collected from the Athabasca oil sands region in northern Alberta, Canada, and climate data generated by the ClimateWNA model. Height–age trajectories differed between top height trees in natural and reclaimed stands for jack pine and white spruce, but not for trembling aspen. At a given age, white spruce top height trees were taller and jack pine top height trees were shorter in reclaimed stands than those in natural stands, suggesting that it is easier to achieve similar forest productivity for oil sands sites reclaimed with white spruce stands than for sites reclaimed with jack pine stands. The principal climate variables were growing season (May to September) precipitation averaged over the previous 10 years for trembling aspen and jack pine and summer (June to August) precipitation averaged over the previous 10 years for white spruce. These variables had positive effects on the height–age trajectories.

Publisher

Canadian Science Publishing

Subject

Ecology,Forestry,Global and Planetary Change

Reference52 articles.

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2. Alberta Environment and Sustainable Resource Development. 2013. Criteria and indicators framework for oil sands mine reclamation certification. Prepared by Charette Pell Poscente Environmental Corporation for the Cumulative Environmental Management Association, Fort McMurray, Alta.

3. Stand Dynamics, Humus Type and Water Balance Explain Aspen Long Term Productivity across Canada

4. Reduced growth of Alaskan white spruce in the twentieth century from temperature-induced drought stress

5. Beckingham, J.D., and Archibald, J.H. 1996. Field guide to ecosites of northern Alberta. Special Report 5, Canadian Forest Service, Northern Forestry Centre, Edmonton, Alta.

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