DOI: 10.1016/j.foreco.2016.09.036
Scopus记录号: 2-s2.0-84989246558
论文题名: Assessing different components of three-dimensional forest structure with single-scan terrestrial laser scanning: A case study
作者: Seidel D. ; Ehbrecht M. ; Puettmann K.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 381 起始页码: 196
结束页码: 208
语种: 英语
英文关键词: LiDAR
; Pseudotsuga menziesii
; Spatial structure
; Structural heterogeneity
; Three-dimensional
Scopus关键词: Optical radar
; Reforestation
; Three dimensional computer graphics
; Horizontal visibility
; Management implications
; Pseudotsuga menziesii
; Restoration treatments
; Spatial structure
; Structural heterogeneity
; Structural variability
; Terrestrial laser scanning
; Forestry
; coniferous tree
; forest management
; ground-based measurement
; heterogeneity
; lidar
; quantitative analysis
; spatial analysis
; spatial variation
; stand structure
; three-dimensional modeling
; Pseudotsuga menziesii
英文摘要: Efficient quantification of the three-dimensional forest structure is of increasing importance for our understanding of forest functions and services, but it remains challenging with conventional methods. We used a single-scan ground-based laser approach in stands with a known difference in management history and associated differences in structures. The data were used to test whether the measurement approach could distinguish various structural measures among the stands, including overall density, vertical structure, competitive conditions for regeneration, horizontal visibility, and three-dimensional structural variability. In general, our data reflected known differences in stand structure. However, in some cases the different measures showed contradicting results, highlighting the limited information represented in each measure when considered in isolation. At the same time, our results suggested that all components of stand structure do not develop in sync. The variability of horizontal and vertical structural heterogeneity appears to be a good indicator of structural elements typically found in old-growth forests, i.e., spatially homogenous (scale independent) horizontal structural variability in combination with a scale-dependent vertical structural variability. In addition, our results provided information with direct management implications. For example, gap creation, a prominent practice in restoration treatments in the region, increased spatial variability, but the hard edges and removal of all trees inside the gap, are not reflecting structural conditions found in our old-growth stand. In summary, our results suggest that this new technology can efficiently provide objective and holistic inventories of stand structures. However, more work is needed to fully understand the implications of the novel structural measures for ecosystem processes and services. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64659
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, Georg-August University of Göttingen, Germany; Department of Forest Ecosystems and Society, College of Forestry, Oregon State University, Corvallis, OR, United States
Recommended Citation:
Seidel D.,Ehbrecht M.,Puettmann K.. Assessing different components of three-dimensional forest structure with single-scan terrestrial laser scanning: A case study[J]. Forest Ecology and Management,2016-01-01,381