DOI: 10.1016/j.foreco.2014.08.039
Scopus记录号: 2-s2.0-84908587225
论文题名: Ground based LiDAR demonstrates the legacy of management history to canopy structure and composition across a fragmented temperate woodland
作者: McMahon S.M. ; Bebber D.P. ; Butt N. ; Crockatt M. ; Kirby K. ; Parker G.G. ; Riutta T. ; Slade E.M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 335 起始页码: 255
结束页码: 260
语种: 英语
英文关键词: Canopy structure
; Forest fragments
; Land-use history
; LiDAR
; Secondary forest
; Wytham Woods
Scopus关键词: Canopy structure
; Forest fragments
; Ground-based lidars
; Land-use history
; Management history
; Secondary forests
; Optical radar
; canopy architecture
; grazing
; land use change
; management
; management practice
; recovery plan
; remote sensing
; temperate forest
; topography
; vegetation classification
; woodland
; England
; Oxfordshire
; United Kingdom
; Wytham Woods
英文摘要: The structure of forest canopies correlates with stand maturity and biomass, and develops consistently over time. Remote-sensing technologies such as Light Detection and Ranging (LiDAR) have become prominent tools for measuring structural characteristics of forests.We walked a portable canopy LiDAR (PCL), an up-facing rangefinder that detects vegetation through the canopy at two kilohertz, along multiple transects at ten different forest stands in the area of Wytham Woods, Oxfordshire, UK. The stands had different species composition, were situated at forest edges and in forest core, were in fragments of different sizes and had different land-use histories. With these data we tested structural differences in vegetation across these stand types.Although none of the stands have been managed in the last 70. years, they have not converged structurally. Vertical canopy structure differed between stands that regrew naturally from open field and those with a history of coppice management. Forest stands that have developed following major fellings or through spread on to former grazing land showed some structural similarities to classic natural succession from large disturbances. Stands that were actively managed as coppice over preceding centuries, showed a similar structural pattern to mature forest, but without the tall overstorey that can develop into old growth communities.This structural divergence indicates two distinct pathways for secondary forests: with implications for the future biomass, stand structure, and species composition. The legacy of management practices can determine canopy structure decades after the forest is removed from active management, but can also be difficult to discern with remote sensing data. We recommend that "ground-truthing" remote sensing data go beyond traditional checks of height and topography, as the history and composition of secondary forests can have an important influence on the pace and compositional structure of recovery from management. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65646
Appears in Collections: 影响、适应和脆弱性
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作者单位: Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD, United States; Department of Biosciences, University of Exeter, Stocker Road, Exeter, United Kingdom; Australian Research Council Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, St. Lucia, QLD, Australia; Earthwatch Institute, Oxford, United Kingdom; Department of Plant Sciences, South Parks Road, Oxford, United Kingdom; Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom; Wildlife Conservation Research Unit, Department of Zoology, University of Oxford, United Kingdom
Recommended Citation:
McMahon S.M.,Bebber D.P.,Butt N.,et al. Ground based LiDAR demonstrates the legacy of management history to canopy structure and composition across a fragmented temperate woodland[J]. Forest Ecology and Management,2015-01-01,335