DOI: 10.1016/j.foreco.2016.09.003
Scopus记录号: 2-s2.0-84987947967
论文题名: Effective number of layers: A new measure for quantifying three-dimensional stand structure based on sampling with terrestrial LiDAR
作者: Ehbrecht M. ; Schall P. ; Juchheim J. ; Ammer C. ; Seidel D.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 380 起始页码: 212
结束页码: 223
语种: 英语
英文关键词: Canopy
; Structure
; TLS
; Vertical
; Voxel
Scopus关键词: Biodiversity
; Conservation
; Employment
; Forestry
; Seebeck effect
; Structure (composition)
; Thallium
; Biodiversity conservation
; Canopy
; Coefficient of variation
; Quadratic mean diameter
; Structural heterogeneity
; Terrestrial laser scanning
; Vertical
; Voxel
; Surveying instruments
; basal area
; biodiversity
; broad-leaved forest
; coniferous forest
; forest canopy
; laser method
; lidar
; sampling
; stand structure
; three-dimensional modeling
; vertical distribution
; Germany
英文摘要: The relevance of stand structural heterogeneity for biodiversity conservation is increasingly recognized and efficient tools for its measurement are demanded. Here, we quantified forest structure by calculating the effective number of layers (ENL) for different Hill Numbers (0D, 1D, 2D) as a measure of vertical structure of a subplot. We than use sampling techniques to cover the horizontal structural variability within study plots. ENL describes the vertical structure based on the occupation of 1 m wide vertical layers by tree components relative to the total space occupation of a stand. Space occupation was quantified by a voxel-model obtained from terrestrial laser scanning (TLS) on 150 forest plots in Germany. We used a single scan approach, which requires less field work and post-processing compared to multiple-scans. Single-scan derived mean ENL and its coefficient of variation successfully differentiated forest structures over a wide range of even-aged, uneven-aged and unmanaged broadleaved and coniferous stands. ENL was correlated to the stand summary measures basal area, quadratic mean diameter and stem density as well as stand age. ENL can be used to describe structural heterogeneity and proved to be efficiently assessable by TLS. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64701
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Silviculture and Forest Ecology of the Temperate Zones, Faculty of Forest Science, University of Göttingen, Büsgenweg 1, Göttingen, Germany
Recommended Citation:
Ehbrecht M.,Schall P.,Juchheim J.,et al. Effective number of layers: A new measure for quantifying three-dimensional stand structure based on sampling with terrestrial LiDAR[J]. Forest Ecology and Management,2016-01-01,380