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The reflective properties of marsh vegetation at microwave frequencies

Reflection and transmission coefficients of marsh vegetation such as mosses, grasses, shrubs, were measured using coaxial line at the range of 100 MHz – 18 GHz. Weight moisture content of the samples varied from 3 to 100%. The measurement results show that the absolute value of the reflection coefficient for marsh vegetation samples dependent on both moisture content and frequency of the electromagnetic wave, and also on the plant species. The study results will be used in the next step – the development of a mathematical model of the complex permittivity for the determination of marsh vegetation species in order to monitor of climate changing.