Snow-corrected vegetation indices for improved gross primary productivity assessment in North American evergreen forests

Ran Wang,David R. Bowling,John A. Gamon,Kenneth R. Smith,Rong Yu,Gabriel Hmimina,Masahito Ueyama,Asko Noormets,Thomas E. Kolb,Andrew D. Richardson,Charles P.A. Bourque,Rosvel Bracho,Peter D. Blanken,T. Andrew Black,M. Altaf Arain

Agricultural and Forest Meteorology（2023）

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摘要

•We compared GPP and MODIS VIs for 47 North American evergreen forest sites.•Snow had substantial effects on GPP-VI relationships.•GPP-VI relationships varied among ecoregions and climate classes.•CCI and NIRv outperformed other indices in estimating GPP.•CCI was able to track seasonal GPP in Mediterranean sites.

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关键词

Evergreen,GPP,MODIS,Chlorophyll-carotenoid index (CCI),NIRv,Snow

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