不同时期大豆光谱反射率与干物重线性回归分析  

Analysis of Linear Regression with Reflectance and Dry Matter Accumulation in Above-ground Part in Different Growth Stages

作　　者：宋英博[1] 

机构地区：[1]黑龙江省农业科学院佳木斯分院,黑龙江佳木斯154007

出　　处：《黑龙江农业科学》2010年第6期27-28,31,共3页Heilongjiang Agricultural Sciences

基　　金：黑龙江省国际合作资助项目(WB08C07)

摘　　要：通过对近红外和可见光波段光谱反射率的分析,确定大豆地上部干物重的敏感波段,计算出相应的植被指数,建立植被指数与大豆地上部干物质量预测模型y=-493.77x+324.55,并能较为准确地预测大豆地上部干物重。The characteristic spectral wavebands for indicating the dry matter accumulation in above-ground part of soybean were determined by analyzing spectra reflectance of near infrared light and visible light, and the prediction model which about vegetation indices and the dry matter accumulation in above-ground part of soybean was established. The results showed that the corresponding prediction model established by vegetation indices of RDVI（100 5,510 nm）was y =-493.77xq-324.55, it could be accurate to predict the dry matter accumulation in above-ground part of soybean.

关 键 词：植被指数 光谱反射率 干物重 

分 类 号：S565.1[农业科学—作物学]