DOI: 10.1016/j.foreco.2015.06.005
Scopus记录号: 2-s2.0-84945441259
论文题名: Comparing patterns in forest stand structure following variable harvests using airborne laser scanning data
作者: Nijland W. ; Coops N.C. ; Ellen Macdonald S. ; Nielsen S.E. ; Bater C.W. ; John Stadt J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 354 起始页码: 272
结束页码: 280
语种: 英语
英文关键词: Boreal mixedwoods
; EMEND
; LiDAR
; Remote sensing
; Retention harvesting
; Silviculture
Scopus关键词: Curve fitting
; Harvesting
; Laser applications
; Optical radar
; Remote sensing
; Scanning
; Surface analysis
; Vegetation
; Airborne Laser scanning
; Boreal mixedwoods
; EMEND
; Forest stand structure
; Silvicultural treatments
; Silviculture
; Sustainable forestry
; Vegetation structure
; Forestry
; airborne sensing
; boreal forest
; comparative study
; coniferous forest
; deciduous forest
; environmental disturbance
; environmental monitoring
; harvesting
; land management
; laser method
; lidar
; mixed forest
; sensitivity analysis
; silviculture
; spatial distribution
; sustainable forestry
; understory
; Canada
; Coniferophyta
英文摘要: Understanding landscape patterns that result from natural disturbances in the mixedwood boreal forests of Canada is a critical precursor to advancing sustainable forestry practices and ecosystem-based land management initiatives. However, monitoring changes in boreal forest structure following disturbance is difficult due to restricted access and the spatial scale at which these disturbances occur. Airborne Laser Scanning (ALS) measures the three-dimensional distribution of vegetation across large areas with high sampling intensities, enabling the detection of small changes in vegetation structure in stands of otherwise similar composition and age. In this paper we compare the suitability of three suites of ALS metrics to discriminate changes in vegetation structure across a gradient of forest harvest retention levels (100% retention (uncut control), 75%, 50%, 20%, 10%, and 0% (clear cut)) for four boreal forest stand types: conifer, deciduous, mixed, and deciduous with conifer understorey. Specifically, we focus on three key types of ALS metric: plot-based point cloud metrics, canopy volumes, and curve-fitting approaches; and evaluate the sensitivity of these metrics to changes in forest stand architecture in response to the harvest treatments or lack thereof. From the three types of metrics, height based point cloud metrics show the most significant separation by treatments and stand-types, followed by canopy volume profiles. Airborne laser scanning has strong utility for distinguishing responses in silvicultural treatments and cover types, revealing characteristics not captured by traditional measurements like crown closure or basal area. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65314
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Resources Management, University of British Columbia, 2424 Main Mall, Vancouver, BC, Canada; Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada; Forest Management Branch, Forestry Division, Alberta Agriculture and Forestry, 9920-108 Street NW, Edmonton, AB, Canada
Recommended Citation:
Nijland W.,Coops N.C.,Ellen Macdonald S.,et al. Comparing patterns in forest stand structure following variable harvests using airborne laser scanning data[J]. Forest Ecology and Management,2015-01-01,354