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| DOI | 10.1016/j.foreco.2019.04.035 |
| Analysing the growth dynamics of mixed stands composed of balsam fir and broadleaved species of various shade tolerances | |
| Pothier D. | |
| 发表日期 | 2019 |
| ISSN | 0378-1127 |
| 起始页码 | 21 |
| 结束页码 | 29 |
| 卷号 | 444 |
| 英文摘要 | The presence of shade-tolerant trees in the understory of mixed-species stands could produce a state of reverse growth dominance, but the growth dynamics between species has been little studied. Here, an analytical framework that was based upon the concepts of growth dominance (GD) and competition mode was used to study the growth dynamics of mixed-species stands. Because shade tolerance is an important trait that influences stand growth dynamics, stands in this study were composed of balsam fir (Abies balsamea [L.] Mill.) and one of four broadleaved species that together form a shade-tolerance gradient. The relative contribution of trees to entire stand growth was determined and then analyzed as a function of their size, species and allometric expectations based upon size-symmetric competition. Balsam fir trees were generally smaller than companion broadleaved species in each type of mixed stands. The small sizes and vigorous growth rates of balsam fir trees were typical of mixed stands that were characterized by negative GD values, i.e., reverse growth dominance. The low number of stands that had positive GD values was generally characterized by higher growth of broadleaved species compared to balsam fir. The growth rates of balsam fir as a function of its allometric expectations play a key role in explaining GD values of mixed-species stands, whereas that of broadleaved species is apparently insensitive to GD values. The concept of stand growth dominance, together with the prevailing mode of competition between trees, identified tree groups that are poor contributors to stand growth. This information can be used in selecting trees for harvest during partial cutting operations, if the purpose of the treatment is to maximize growth of residual stands. © 2019 Elsevier B.V. |
| 英文关键词 | Growth dominance; Size-symmetric competition; Stand productivity; Tree growth; Tree size |
| 语种 | 英语 |
| scopus关键词 | Dynamics; Mixed-species stands; Partial cutting; Relative contribution; Shade tolerance; Stand productivities; Symmetric competition; Tree growth; Tree size; Forestry; broad-leaved forest; coniferous tree; cutting (process); growth; growth rate; mixed forest; shade tolerance; stand structure; understory; Abies Lasiocarpa; Competition; Dynamics; Forestry; Growth; Mixed Stands; Trees; Abies; Abies balsamea |
| 来源期刊 | Forest Ecology and Management
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/155995 |
| 作者单位 | Centre d’étude de la forêt, Département des sciences du bois et de la forêt, Pavillon Abitibi-Price, 2405 rue de la Terrasse, Université Laval, Québec, QC G1V 0A6, Canada |
| 推荐引用方式 GB/T 7714 | Pothier D.. Analysing the growth dynamics of mixed stands composed of balsam fir and broadleaved species of various shade tolerances[J],2019,444. |
| APA | Pothier D..(2019).Analysing the growth dynamics of mixed stands composed of balsam fir and broadleaved species of various shade tolerances.Forest Ecology and Management,444. |
| MLA | Pothier D.."Analysing the growth dynamics of mixed stands composed of balsam fir and broadleaved species of various shade tolerances".Forest Ecology and Management 444(2019). |
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