An Overview of Global Leaf Area Index (LAI): Methods, Products, Validation, and Applications
文献类型:期刊论文
作者 | Fang, Hongliang2; Baret, Frederic3; Plummer, Stephen1; Schaepman-Strub, Gabriela4 |
刊名 | REVIEWS OF GEOPHYSICS |
出版日期 | 2019-09-01 |
卷号 | 57期号:3页码:739-799 |
ISSN号 | 8755-1209 |
关键词 | leaf area index (LAI) field measurement remote sensing estimation validation schemes LAI uncertainties LAI applications |
DOI | 10.1029/2018RG000608 |
通讯作者 | Fang, Hongliang(fanghl@lreis.ac.cn) |
英文摘要 | Leaf area index (LAI) is a critical vegetation structural variable and is essential in the feedback of vegetation to the climate system. The advancement of the global Earth Observation has enabled the development of global LAI products and boosted global Earth system modeling studies. This overview provides a comprehensive analysis of LAI field measurements and remote sensing estimation methods, the product validation methods and product uncertainties, and the application of LAI in global studies. First, the paper clarifies some definitions related to LAI and introduces methods to determine LAI from field measurements and remote sensing observations. After introducing some major global LAI products, progresses made in temporal compositing and prospects for future LAI estimation are analyzed. Subsequently, the overview discusses various LAI product validation schemes, uncertainties in global moderate resolution LAI products, and high resolution reference data. Finally, applications of LAI in global vegetation change, land surface modeling, and agricultural studies are presented. It is recommended that (1) continued efforts are taken to advance LAI estimation algorithms and provide high temporal and spatial resolution products from current and forthcoming missions; (2) further validation studies be conducted to address the inadequacy of current validation studies, especially for underrepresented regions and seasons; and (3) new research frontiers, such as machine learning algorithms, light detection and ranging technology, and unmanned aerial vehicles be pursued to broaden the production and application of LAI. |
WOS关键词 | RADIATIVE-TRANSFER MODEL ; WAVE-FORM LIDAR ; PHOTOSYNTHETICALLY ACTIVE RADIATION ; DIGITAL HEMISPHERICAL PHOTOGRAPHY ; HYPERSPECTRAL VEGETATION INDEXES ; WINTER-WHEAT YIELD ; ESSENTIAL CLIMATE VARIABLES ; LAND-SURFACE MODELS ; REMOTE-SENSING DATA ; TIME-SERIES DATA |
资助项目 | Hundred Talent Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China[41471295] ; National Natural Science Foundation of China[41171333] ; National Key Research and Development Program of China[2016YFA0600201] |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000492796700003 |
资助机构 | Hundred Talent Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Research and Development Program of China |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/131895] |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Fang, Hongliang |
作者单位 | 1.European Space Agcy, Climate Off, Sci Applicat & Climate Dept, Didcot, Oxon, England 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, LREIS, Beijing, Peoples R China 3.Ctr PACA, INRA, EMMAH, UMR1114, Batiment Climat,CS 40509, Avignon, France 4.Univ Zurich, Dept Evolutionary Biol & Environm Studies, Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Fang, Hongliang,Baret, Frederic,Plummer, Stephen,et al. An Overview of Global Leaf Area Index (LAI): Methods, Products, Validation, and Applications[J]. REVIEWS OF GEOPHYSICS,2019,57(3):739-799. |
APA | Fang, Hongliang,Baret, Frederic,Plummer, Stephen,&Schaepman-Strub, Gabriela.(2019).An Overview of Global Leaf Area Index (LAI): Methods, Products, Validation, and Applications.REVIEWS OF GEOPHYSICS,57(3),739-799. |
MLA | Fang, Hongliang,et al."An Overview of Global Leaf Area Index (LAI): Methods, Products, Validation, and Applications".REVIEWS OF GEOPHYSICS 57.3(2019):739-799. |
入库方式: OAI收割
来源:地理科学与资源研究所
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