Corrigendum to: Growth of white spruce underplanted beneath spaced and unspaced aspen stands in northeastern B.C.—10 year results |
| |
| Authors: | Philip G Comeau Cosmin N Filipescu Richard Kabzems Craig DeLong |
| |
| Institution: | 1. Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, AB T6G 2H1, Canada;2. B.C. Ministry of Forests, Northern Interior Forest Region, 9000 17th St., Dawson Creek, B.C. V1G 4A4, Canada;3. B.C. Ministry of Forests, Northern Interior Forest Region, 1011 4th Ave., Prince George, B.C. V1G 4A4, Canada |
| |
| Abstract: | Establishing white spruce (Picea glauca (Moench) Voss) by planting it under established aspen (Populus tremuloides Michx.), stands has substantial potential as a technique for regenerating boreal mixedwood stands. The presence of an aspen overstory serves to ameliorate frost and winter injury problems and suppresses understory vegetation that may compete with white spruce. In this study we examine the growth of white spruce during the first 10 years after being planted underneath a 39-year-old stand of trembling aspen following thinning and fertilization. Results indicate successful establishment and reasonable growth rates of white spruce planted under thinned and unthinned aspen stands, even with aspen basal area of 51 m2 ha−1. Thinning of overstory aspen to 1000 or 2000 stems ha−1 did not increase light reaching seedlings, but did result in improvements in light above the shrub layer and in diameter and height growth of the underplanted seedlings. However, these increases in growth of underplanted spruce may not justify the expense of thinnings. Fertilization of these stands prior to planting had no effect on spruce growth. Growth of spruce underplanted at this site near Fort Nelson was similar to that at two other stands near Dawson Creek, B.C. |
| |
| Keywords: | Boreal mixedwoods White spruce Trembling aspen Underplanting |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
