A large number of thermo-image measurements are useful in determining the water and energy status of ornamental tree or shrubs, especially when using certain improved parameters and methods. With these parameters and proper methods, data comparability in thermo-image analyses of ornamental tree/shrubs have been improved. In a large number of thermographic measurements, we found a significantly high-image temperature or ‘’fever” status in stressed tree or shrubs in sunny summer midday because of their transpiration cooling failure. Leaf withering, scorching, reddening, shedding and green losing can be the typical symptom patterns after persistent “fever” which is a dangerous signal unadapted to local environment and originate from persistent water and energy imbalance. The utilization of parameter of thermo-difference between leaf and finger of observer (TD_lf) supports this idea.

大量的热图像测量值可用于确定观赏树木或灌木的水和能量状态，尤其是在使用某些改进的参数和方法时。通过这些参数和适当的方法，观赏树木/灌木的热图像分析中的数据可比性得到了改善。在大量的热成像测量中，我们发现在阳光灿烂的夏天中午，压力树或灌木中的图像温度或发烧状态明显偏高，这是因为它们的蒸腾冷却失效。持续的“发烧”之后，叶片的枯萎，灼热，变红，脱落和变绿可能是典型的症状，这是不适应当地环境的危险信号，源于持续的水和能量失衡。_lf）支持这个想法。