Inversion of Biochemical Parameters by Selection of Proper Vegetation Index in Winter Wheat

作     者：HUANGWen-jiang WANGJi-hua LIULiang-yun ZHAOChun-jiang WANGZhi-jie WANGJin-di 

作者机构：ResearchCenterforRemoteSensingandGISSchoolofGeographyBeijingNormalUniversityBeijing100875P.R.China NationalEngineeringResearchCenterforInformationTechnologyinAgricultureBeijing100089P.R.China 

出 版 物：《Agricultural Sciences in China》 (中国农业科学（英文版）)

年 卷 期：2004年第3卷第3期

页      面：178-185页

学科分类：09[农学] 0901[农学-作物学] 

基　　金：support provided for this research by the Special Funds for Major State Basic Research Project(G20000779) the 863 National Project(2002AA243011,2003AA209010 and H020821020130) 

主　　题：Winter wheat,Canopy reflected spectrum,Structure Insensitive Vegetation Index Chlorophyll concentration 

摘      要：Recent studies have demonstrated the application of vegetation indices from canopy reflectedspectrum for inversion of chlorophyll concentration. Some indices are both response tovariations of vegetation and environmental factors. Canopy chlorophyll concentration, anindicator of photosynthesis activity, is related to nitrogen concentration in green vegetationand serves as an indicator of the crop response to soil nitrogen fertilizer application. Thecombination of normalized difference vegetation index (NDVI) and photochemical reflectanceindex (PRI) can reduce the effect of leaf area index (LAI) and soil background. The canopychlorophyll inversion index (CCII) was proved to be sensitive to chlorophyll concentration andvery resistant to the other variations. This paper introduced the ratio of TCARI/OSAVI to makeaccurate predictions of winter wheat chlorophyll concentration under different cultivars. Itindicated that canopy chlorophyll concentration could be evaluated by some combined vegetationindices.