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	Investigating the relationship between ground-measured LAI and vegetation indices in an alpine meadow, north-west China
	Lu, L; Li, X; Huang, CL; Ma, MG; Che, T; Bogaert, J; Veroustraete, F; Dong, QH; Ceulemans, R
刊名	INTERNATIONAL JOURNAL OF REMOTE SENSING
	2005-10-20
卷号	26期号:20页码:4471-4484
ISSN号	0143-1161
DOI	10.1080/01431160500114938
通讯作者	Lu, L(luling@lzb.ac.cn)
英文摘要	A field campaign was carried out in the alpine meadow of Heihe River Basin, north-west China on 11-15 July 2002. Several bio-geophysical parameters such as leaf area index (LAI) were measured according to VALERI sampling procedures within 38 elementary sampling units (ESUs) in the 3 kin x 3 km 'VALERI' site. A quarter scene of Landsat 7 ETM+ with acquisition times close to the field campaign time was atmospherically and geographically corrected. Three kinds of spectral vegetation index maps including NDVI SR and MSAVI in the sampling area were derived from the corrected ETM + image. The two sets of LAI data measured with LAI-2000 and TRAC instrument at the same site were inter-compared. This is particularly meaningful for assessing the accuracy of LAI measurements. The relationships between the measured LAI and the three kinds of vegetation indices were also investigated. These comparisons found good relationships between the measured LAI and the different vegetation indices in most cases. Among them, NDVI seems the most promising estimator for extraction of LAI for the alpine meadow. In addition, the LAI-2000 seems to perform better for LAI measurement in the alpine meadow than the TRAC instrument.
收录类别	SCI
WOS关键词	LEAF-AREA-INDEX ; TEMPERATE CONIFEROUS FORESTS ; LAND-SURFACE IMAGERY ; ETM PLUS ; ATMOSPHERIC CORRECTION ; BIOPHYSICAL STRUCTURE ; BOREAL FORESTS ; MODIS-LAI ; VALIDATION ; TM
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000233909500006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555676
专题	寒区旱区环境与工程研究所
通讯作者	Lu, L
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Univ Libre Bruxelles, Ecole Interfac Bioingn, B-1050 Brussels, Belgium 3.Ctr Remote Sensing & Atmospher Proc, Vito TAP, BE-2400 Mol, Belgium 4.Univ Antwerp, Dept Biol, B-2020 Antwerp, Belgium
推荐引用方式 GB/T 7714	Lu, L,Li, X,Huang, CL,et al. Investigating the relationship between ground-measured LAI and vegetation indices in an alpine meadow, north-west China[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2005,26(20):4471-4484.
APA	Lu, L.,Li, X.,Huang, CL.,Ma, MG.,Che, T.,...&Ceulemans, R.(2005).Investigating the relationship between ground-measured LAI and vegetation indices in an alpine meadow, north-west China.INTERNATIONAL JOURNAL OF REMOTE SENSING,26(20),4471-4484.
MLA	Lu, L,et al."Investigating the relationship between ground-measured LAI and vegetation indices in an alpine meadow, north-west China".INTERNATIONAL JOURNAL OF REMOTE SENSING 26.20(2005):4471-4484.

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