DOI: 10.1111/ele.13429
论文题名: Partitioning plant spectral diversity into alpha and beta components
作者: Laliberté E. ; Schweiger A.K. ; Legendre P.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 2 起始页码: 370
结束页码: 380
语种: 英语
中文关键词: Alpha diversity
; beta diversity
; gamma diversity
; imaging spectroscopy
; remote sensing
; spectral heterogeneity
; spectral variation hypothesis
; spectranomics
英文关键词: heterogeneity
; hypothesis testing
; imaging method
; partitioning
; plant community
; remote sensing
; solar radiation
; species diversity
; spectral analysis
; spectroscopy
; taxonomy
; biodiversity
; ecology
; ecosystem
; plant
; Biodiversity
; Ecology
; Ecosystem
; Plants
英文摘要: Plant spectral diversity – how plants differentially interact with solar radiation – is an integrator of plant chemical, structural, and taxonomic diversity that can be remotely sensed. We propose to measure spectral diversity as spectral variance, which allows the partitioning of the spectral diversity of a region, called spectral gamma (γ) diversity, into additive alpha (α; within communities) and beta (β; among communities) components. Our method calculates the contributions of individual bands or spectral features to spectral γ-, β-, and α-diversity, as well as the contributions of individual plant communities to spectral diversity. We present two case studies illustrating how our approach can identify 'hotspots’ of spectral α-diversity within a region, and discover spectrally unique areas that contribute strongly to β-diversity. Partitioning spectral diversity and mapping its spatial components has many applications for conservation since high local diversity and distinctiveness in composition are two key criteria used to determine the ecological value of ecosystems. © 2019 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166655
Appears in Collections: 气候变化与战略
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作者单位: Institut de recherche en biologie végétale, Université de Montréal, 4101 Sherbrooke Est, Montréal, QC H1X 2B2, Canada; Département de sciences biologiques, Université de Montréal, C. P. 6128, succursale Centre-ville, Montréal, QC H3C 3J7, Canada
Recommended Citation:
Laliberté E.,Schweiger A.K.,Legendre P.. Partitioning plant spectral diversity into alpha and beta components[J]. Ecology Letters,2020-01-01,23(2)