DOI: 10.1016/j.foreco.2015.01.012
Scopus记录号: 2-s2.0-84922463989
论文题名: Variation in biomass distribution and nutrient content in loblolly pine (Pinus taeda L.) clones having contrasting crown architecture and growth efficiency
作者: Garcia Villacorta A.M. ; Martin T.A. ; Jokela E.J. ; Cropper W.P. ; Jr. ; Gezan S.A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 342 起始页码: 84
结束页码: 92
语种: 英语
英文关键词: Allocation
; Biomass distribution
; Crown structure
; Ideotype
Scopus关键词: Biomass
; Cloning
; Ecology
; Efficiency
; Information management
; Nutrients
; Population statistics
; Allocation
; Biomass distribution
; Biomass partitioning
; Crown structure
; Ideotype
; Loblolly pine (pinus taeda l.)
; Nutrient concentrations
; Silvicultural treatments
; Forestry
; biomass
; canopy architecture
; clone
; coniferous tree
; disease resistance
; foliage
; forest inventory
; forest management
; growth rate
; nutrient availability
; plant breeding
; silviculture
; Biomass
; Crowns
; Forests
; Nutrients
; Pinus Taeda
; Silviculture
; Pinus taeda
英文摘要: Loblolly pine (Pinus taeda L.) is well adapted across an extensive range of sites, is responsive to silvicultural treatments, and has undergone genetic improvement through traditional tree breeding programs, with selection based primarily on rapid growth and disease resistance. Loblolly pine clones with contrasting crown architecture provide an opportunity to better understand the mechanistic relationships among stem growth, biomass partitioning, and component nutrient content. We assessed inventory data from four clones which exhibited a range of crown widths. Using a subset of three clones, we measured crown sizes, crown volume, biomass allocated to components (foliage, branches, stemwood and bark), and component nutrient concentration and content to assess variation in allocation and growth efficiency. Clonal variation in biomass distribution patterns helped explain variation in growth efficiency between the narrow crown clone (ARB-1) and wide crown clone (ARB-4). Clone ARB-1 was more efficient at producing stem biomass increment per unit foliar biomass and unit foliar nutrient content than clone ARB-4; this was consistent with the concept of a crop ideotype. This study provides new information useful for improving our understanding of the relationships among crown structure, biomass distribution patterns, growth efficiency, and tree productivity, and may help guide clonal tree population management. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65527
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Forest Resources and Conservation, University of Florida, P.O. Box 110410, Gainesville, FL, United States
Recommended Citation:
Garcia Villacorta A.M.,Martin T.A.,Jokela E.J.,et al. Variation in biomass distribution and nutrient content in loblolly pine (Pinus taeda L.) clones having contrasting crown architecture and growth efficiency[J]. Forest Ecology and Management,2015-01-01,342