基于冠层反射和植被指数的华东地区叶面指数反演.pdf

Journalof Sciences ISSN：1009—637X Geographical15，2(2005)247-254 www．geog．ca Leafareaindex retrievalbasedon canopy reflectanceand indexineastern vegetation China NG JIA 0Shunxian2，WU Jianjunl，CHENSuozhon91，CA Honganl， ZHANG NG Lil，ZHA Hailon91 of Normal (1．CollegeGeographical 210097，China； Science，NanjingUniversity，Nanjing ofHumanitiesandSocial 210037， 2．College Science，NanjingForestryUniversity，Nanjing China) aimofthis jsto of LandsatTM retrieve Abstract：The the datato PaDer investigatefeasibilityusing leafareaindexfLAll．Toa LAIretrievalmodelbased reflectanceand index． get ground vegetation detailedfielddatawerecollectedinthe areaofeastern study China，dominatedbybamboo．teaplant TM and reflectanceofLandsat bandshasbeeninversed greengage．Plantcanopy wavelength using softwareof6S．LAIisan this correctedLandsat importantecologicalparameter．InPaper，atmospheric TM wasutilizedtocalculatedifferent indicesfVI)，suchas ratio imagery vegetation simplevegetation index(SRl，shortwaveinfraredmodified normalizeddifference simpleratio(MSR)，and vegetation of of area． index 53 LAlwerem