一、农作物光谱观测的意义遥感技术的应用,是以反射和发射电磁波谱为其物理基础。所以,在发射地球资源卫星之前,美国用近10年时间研究地物光谱;苏联自创先研究地物光谱以来,已进行半个世纪,在这项基础工作中,农作物光谱观测是重要的内容之一。首先,农作物观测所取得的光谱资料,为寻求最佳遥感信息对农作物解译分析提供客观标准。其次,农作物光谱观测资料的通常用途,是为航空和航天设计传感器波段提供依据。因此,要确定对农业最有用的波段,都要以农作物光谱观测研究为依据。农作物光谱观测是地面遥感工作的组成部分。如可用光谱模式进行估产;为农作物生育状况的非破坏性研究提供新的技术手段;育种人员可用它分析叶片分布的合理性 First, the significance of crop spectral observations The application of remote sensing technology, based on the reflection and emission of electromagnetic spectrum as its physical basis. Therefore, before launching the Earth Resources Satellite, the United States spent nearly 10 years studying the spectrum of the object; since the Soviet Union had studied the object spectrum for the first time in its own right for half a century, the spectral observation of crops is an important part of this basic work one. First, the spectral data obtained from crop observations provide objective criteria for the interpretation of crop analysis in search of the best remote sensing information. Second, the common use of crop spectral observations is to provide a basis for the design of sensor bands for aerospace and aerospace applications. Therefore, to determine the most useful band for agriculture, crop spectral observations should be based on research. Crop spectral observations are an integral part of ground-based remote sensing. Such as estimating the available spectral patterns; providing new technical means for non-destructive research on crop fertility; breeders can use it to analyze the rationality of leaf distribution