小麦冠层理化参量的高光谱遥感反演试验研究

Research on a Method to Retrieve Biophysical and Biochemical Parameters of Wheat Canopy with Hyperspectral Remote Sensing

以国产成像光谱仪所获高光谱遥感数据为基础 ,根据田间同步采样数据建立的基于反射光谱特征的小麦冠层生物物理和生物化学估计模型 ,实现了用航空高光谱遥感数据对田间小麦冠层理化参量的整体反演。结果表明 :用高光谱遥感方法估计小麦冠层理化参量是可行的 ;以理化参数为“波段”的数字图像及其处理 。

Based on the hyperspectral remote sensing data of the homemade Imaging Spectrometer, the estimating models of biophysical and biochemical parameters from the reflectance spectral characteristics were established using synchronous sampling data in the field. The biophysical and biochemical parameters were retrieved for the whole field. The results show that it is possible to use the method of hyperspectral remote sensing to estimate biophysical and biochemical parameters of wheat crop in the field. The processing of the image of biochemical parameters as specific bands provides a new view angle for agronomists to explain the spatial variability of crop yield and study the mechanism of crop ecophysiology based on spatial distribution and variability of biophysical and biochemical parameters.