Plant and Soil Science

The relevance of the research is to improve the current ecologically-ameliorative monitoring’s system through the use of modern methods of the remote sensing of the Earth. The aim of the researches is to solve and clarify the issue of compensation for satellite and in situ data under investigations of the processes of moisture saturation, soil degradation, growth and development of agricultural crops. The researches were conducted within the fundamental researches of the Institute of Water Problems and land reclamation of the National Academy of Agrarian Sciences of Ukraine for the period 2002-2017 on the cultivated areas of the steppe zone of Ukraine. Traditional methods of terrestrial observations were used: field, analytical, statistical, as well as methods with usage of satellite’s information: spectral and mathematical analysis of digital images, creation of thematic maps, modeling of energy and radiation balances of the surface, GIS analysis. It is proved that the biophysical indicators and the surface data are mandatory indicators for making decisions concerning the irrigation of the separate field for the compensation of the crops’ moisture’s deficit and for the investigations of the dynamics of moisture’s content distribution. Conduction of the large-scales monitoring works requires the use of satellite information, surface data is not mandatory and used if situation so requires. It is suggested to present the data’s compensation in percentages, what corresponds to the number of indicators involved, and to take into account for managerial decisions with a preliminary determining on which the spatiotemporal level will be solve the task, which, in turn, will substantially ensure the optimization of monitoring works.

compensation, satellite multispectral data, ecologicallyameliorative monitoring, spectral indices, biophysical indicators