DOI: 10.1016/j.foreco.2016.04.029
Scopus记录号: 2-s2.0-84963851524
论文题名: Above- and below-ground biomass partitioning and fine root morphology in juvenile Sitka spruce clones in monoclonal and polyclonal mixtures
作者: Donnelly L. ; Jagodziński A.M. ; Grant O.M. ; O'Reilly C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 373 起始页码: 17
结束页码: 25
语种: 英语
英文关键词: Clones
; Competition
; Deployment type
; Fine root morphology
; Picea sitchensis
Scopus关键词: Biomass
; Competition
; Ecology
; Forestry
; Mixtures
; Morphology
; Biomass partitioning
; Competitive interactions
; Deployment type
; Fine roots
; Morphological characteristic
; Picea sitchensis
; Root-collar diameters
; Stand productivities
; Cloning
; aboveground biomass
; belowground biomass
; biological production
; biomass allocation
; clone
; competition (ecology)
; coniferous tree
; digital image
; experimental study
; fine root
; growth rate
; juvenile
; morphology
; Picea sitchensis
英文摘要: Six juvenile Sitka spruce (Picea sitchensis (Bong.) Carr) clones were grown in monoclonal (pure) and polyclonal mixtures (mixed) in a field experiment to assess effects of clonal diversity on above- and below-ground growth, biomass partitioning and fine root morphology. Shoot height and root collar diameter were measured twice annually and after the second year 48 clones were destructively harvested. Fine roots were divided into 10 diameter classes, for each of which morphological characteristics were calculated from digitized images. Competitive interactions arising from deployment type were found to significantly increase fine root surface area in mixed plots and fine root length in pure plots for two fine root diameter classes for some clones. Competitive interactions were also found to significantly alter relationships between above- and below-ground variables and reduce the strength and significance of relationships among root traits in mixed plots. Significant inter-clonal variation for many above- and below-ground parameters was also observed. The two most productive clones, in terms of height and diameter growth, differed significantly in biomass partitioning suggesting that a high degree of variation occurs among Sitka spruce clones, which may affect stand productivity and uniformity. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64888
Appears in Collections: 影响、适应和脆弱性
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作者单位: UCD Forestry, University College Dublin, Belfield, Dublin 4, Ireland; Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, Kórnik, Poland
Recommended Citation:
Donnelly L.,Jagodziński A.M.,Grant O.M.,et al. Above- and below-ground biomass partitioning and fine root morphology in juvenile Sitka spruce clones in monoclonal and polyclonal mixtures[J]. Forest Ecology and Management,2016-01-01,373