Title :
Estimation of leaf area index and total dry matter of rice canopy by using spectral reflectance
Author :
Lee, Jeong Taek ; Lee, Chun Woo ; Hong, Suk Young ; Park, Moo Eon
Author_Institution :
Nat. Inst. of Agric. Sci. & Technol., Suwon, South Korea
Abstract :
To estimate leaf area index (LAI) and total dry matter (TDM) of rice canopy by a non-destructive method, the spectral reflectance from the canopy was measured weekly by the spectroradiometer during the growing season. The reflectivity of visible band remained less than 0.1 throughout the growing season, but that of near infrared band varied from 0.1 to 0.5, showing the positive correlation with LAI. Vegetation index by narrow band (10 nm), R910/R460 showed strong correlation with LAI and TDM
Keywords :
agriculture; geophysical techniques; remote sensing; LAI; Oryza; TDM; agriculture; geophysical measurement technique; infrared; leaf area index; optical imaging; remote sensing; rice canopy; spectral reflectance; total dry matter; vegetation mapping; visible; Area measurement; Crops; Infrared spectra; Narrowband; Reflectivity; Spectral analysis; Spectroradiometers; Time division multiplexing; Vegetation; Wavelength measurement;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.615807
