气候变化领域集成服务门户(CCPortal): Partitioning plant spectral diversity into alpha and beta components

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DOI	10.1111/ele.13429
	Partitioning plant spectral diversity into alpha and beta components
	Laliberté E.; Schweiger A.K.; Legendre P.
发表日期	2020
ISSN	1461023X
卷号	23 期号:2
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
英文关键词	Alpha diversity; beta diversity; gamma diversity; imaging spectroscopy; remote sensing; spectral heterogeneity; spectral variation hypothesis; spectranomics
语种	英语
scopus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
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120943
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
推荐引用方式 GB/T 7714	Laliberté E.,Schweiger A.K.,Legendre P.. Partitioning plant spectral diversity into alpha and beta components[J],2020,23(2).
APA	Laliberté E.,Schweiger A.K.,&Legendre P..(2020).Partitioning plant spectral diversity into alpha and beta components.Ecology Letters,23(2).
MLA	Laliberté E.,et al."Partitioning plant spectral diversity into alpha and beta components".Ecology Letters 23.2(2020).