Major Principles in Spectrometric Studies of Vegetation

An essential application of remote sensing with significant importance for practice is vegetation monitoring. In agriculture for instance regular and timely information is needed about crop state and development, about the occurrence of stress situations for undertaking of respective measures, and etc. This paper has the goal to summarize issues related to vegetation peculiarities as a biological system and as an object of spectrometric studies, and on this ground to analyze a number of specific problems typical in vegetation monitoring, to point out some difficulties that data interpretation runs on, to suggest some approaches for their overcoming. Spectral reflectance specifics of the soil-vegetation cover as a dynamical system and a mixed class is scrutinized, the use of reflectance properties as an indicator of plant state is substantiated basing on their adequate relationship with plant bioparameters.