DOI: 10.1016/j.foreco.2016.11.029
Scopus记录号: 2-s2.0-84999232839
论文题名: Examining growth relationships in Quercus stands: An application of individual-tree models developed from long-term thinning experiments
作者: Lhotka J.M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 385 起始页码: 65
结束页码: 77
语种: 英语
英文关键词: Density-growth relationships
; Diameter growth
; Quercus
; Stand stocking
; Survival
Scopus关键词: Ecology
; Density growths
; Diameter growth
; Quercus
; Stand stockings
; Survival
; Forestry
; basal area
; broad-leaved forest
; deciduous forest
; density dependence
; diameter
; experimental study
; individual-based model
; long-term change
; stand dynamics
; survival
; thinning
; United States
; Quercus
; Quercus alba
英文摘要: This manuscript seeks to further the understanding of growth patterns in Quercus forests, thereby informing the development of appropriate thinning practice. The author leveraged a network of thinning experiments established by the US Forest Service more than 50 years ago. Individual-tree diameter growth and survival models were developed along with a simulation framework to evaluate the relationship between stand stocking and 20-year basal area and volume growth. Models predicting five-year diameter growth and survival of individual trees included variables representing tree size, competitive position, stand density, and/or site quality. Model evaluation focused on the collective accuracy and cumulative error propagation of the individual-tree models through four, five-year growth cycles. Through a series of stand density simulations in white oak (Quercus alba L.) dominated forest structures representing four mid-rotation age conditions, it was found that stand basal area and total volume growth followed a unimodal pattern culminating at 50–60% stocking. Sawtimber volume growth was more sensitive to initial stand age, and the stocking level where it peaked increased with increasing age. The study not only helps to define relationships for Quercus stands of the Central Hardwood Forest Region, USA, but it also adds to the limited body of research quantifying individual-tree and stand growth relationships within mixed species broadleaf forest types. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64562
Appears in Collections: 影响、适应和脆弱性
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作者单位: University of Kentucky, Department of Forestry, 210 TP Cooper Building, Lexington, KY, United States
Recommended Citation:
Lhotka J.M.. Examining growth relationships in Quercus stands: An application of individual-tree models developed from long-term thinning experiments[J]. Forest Ecology and Management,2017-01-01,385