Biological Systems Engineering, Department of


Document Type


Date of this Version



MDPI Remote Sensing (2021) 13(11): 2139

doi: 10.3390/rs13112139

Special Issue: UAVs for Vegetation Monitoring

Academic edtor: Thomas Alexandridis


Copyright 2021, the authors. Open access

License: CC BY 4.0


This paper reviewed a set of twenty-one original and innovative papers included in a special issue on UAVs for vegetation monitoring, which proposed new methods and techniques applied to diverse agricultural and forestry scenarios. Three general categories were considered: (1) sensors and vegetation indices used, (2) technological goals pursued, and (3) agroforestry applications. Some investigations focused on issues related to UAV flight operations, spatial resolution requirements, and computation and data analytics, while others studied the ability of UAVs for characterizing relevant vegetation features (mainly canopy cover and crop height) or for detecting different plant/crop stressors, such as nutrient content/deficiencies, water needs, weeds, and diseases. The general goal was proposing UAV-based technological solutions for a better use of agricultural and forestry resources and more efficient production with relevant economic and environmental benefits.