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Abstract：
This review outlines the advances achieved in monitoring natural and anthropogenic plant stressors by hyperspectral remote sensing over the last 50 years. A broad diversity of methods based on field and imaging spectroscopy were developed in that field for precision farming and environmental monitoring purposes. From the 466 articles reviewed, we identified the main factors to consider to achieve accurate monitoring of plant stress, namely: The plant species and the stressor to monitor, the goal (detection or quantification), and scale (field or broad-scale) of monitoring, and the need for controlled experiments. Based on these factors, we then provide recommendations and guidelines for the development of reliable methods to monitor 11 major biotic and abiotic plant stressors. For each stressor, the effects on plant health and reflectance are described and the most suited spectral regions, scale, spatial resolution, and processing approaches to achieve accurate monitoring are presented. As a perspective, we discuss two major components that should be implemented in future methods to improve stress monitoring: The discrimination of plant stressors with similar effects on plants and the transferability of the methods across scales.
摘要：
这篇综述概述了过去50年来通过高光谱遥感监测自然和人为植物胁迫源方面取得的进展。在该领域开发了基于田间和成像光谱学的多种方法，用于精确农业和环境监测目的。从审查的466篇文章中，我们确定了实现植物胁迫准确监测的主要因素，即：植物物种和要监测的压力源，目标(检测或量化)，和监测的规模(现场或大规模)，以及对受控实验的需要。基于这些因素,然后，我们为开发可靠的方法来监测11种主要的生物和非生物植物应激源提供建议和指南。对于每个压力源，描述了对植物健康和反射率的影响，以及最合适的光谱区域，scale,空间分辨率,并提出了实现精确监测的处理方法。作为一个视角,我们讨论了在未来改善胁迫监测的方法中应实施的两个主要组成部分：对植物具有相似影响的植物胁迫源的区分以及方法跨尺度的可转移性。
