DOI: 10.1016/j.foreco.2014.01.032
Scopus记录号: 2-s2.0-84893961999
论文题名: Growth and root development of black and white spruce planted after deep planting
作者: Tarroux E. ; DesRochers A. ; Girard J.-P.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 318 起始页码: 294
结束页码: 303
语种: 英语
英文关键词: Adventitious root
; Black spruce
; Stem burial
; Tree plantation
; White spruce
英文摘要: The capacity of trees to produce new roots is essential for rapid early growth of planted seedlings. Black and white spruce trees (Picea mariana and Picea glauca) are widely planted in the eastern boreal forest of Canada and are known to develop substantial adventitious root systems. In this study, we compared root development and growth of 17-year-old trees that had been planted at two different depths (ground level vs 10-12. cm) to see if partial stem burial would hasten adventitious root development, and in turn, growth. Root number (total and adventitious), root total area, rooting depth, year of root formation, tree height and basal diameter were measured in black and white spruce trees. Both species developed adventitious root systems, and adventitious roots size and area were greater for deeply planted trees than for trees planted at ground level. The number of adventitious roots and the speed of adventitious root development were greater for deeply planted black spruce but not for deeply planted white spruce, compared with trees planted at ground level. For the latter, site conditions could explain the absence of a planting depth response. Deep planting increased tree height and basal diameter of white spruce, but only height for black spruce trees. However, tree growth was related to total root cross-sectional area (not just adventitious roots), underscoring the importance of both types of roots for tree growth. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66056
Appears in Collections: 影响、适应和脆弱性
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作者单位: Institut de Recherche sur les Forêts, Université du Québec en Abitibi-Témiscamingue, 341 rue Principale Nord, Amos Québec J9T 2L8, Canada; Direction des opérations intégrées du Saguenay - Lac-St-Jean, Ministère des Ressources naturelles, 3950 boul. Harvey, Jonquière, Québec G7X 8L6, Canada
Recommended Citation:
Tarroux E.,DesRochers A.,Girard J.-P.. Growth and root development of black and white spruce planted after deep planting[J]. Forest Ecology and Management,2014-01-01,318