关键词: 农作物, 环境胁迫, 高光谱遥感, 研究进展

Abstract: Frequent crop environmental stress not only seriously affects regional food production and ecological security, but also threatens social and economic stability and sustainable development. Hyperspectral remote sensing can monitor crop environmental stress in real time and accurately, which has great advantages over traditional monitoring methods. This paper firstly introduced the theoretical basis of hyperspectral remote sensing for monitoring crop environmental stress, focusing on direct monitoring based on spectral response characteristics and indirect monitoring based on agronomic parameters and physiological information inversion. The research progress of hyperspectral remote sensing in monitoring crop pests and diseases and water stress was summarized. On this basis, the insufficiency of this technology in the field of crop environmental stress monitoring was pointed out, such as the lack of specific knowledge of spectral response characteristics, the low accuracy and universality of inversion model, and the limited use of data. The development direction of hyperspectral remote sensing in crop environmental stress monitoring was discussed in order to provide reference for crop environmental stress monitoring and early warning.

Key words: crop, environmental stress, hyperspectral remote sensing, research progress