[Ionizing role of tree plantations of health resort]

The relevance of the study is due to the important therapeutic role of natural air ionization in the ground atmosphere of heath resorts, which many authors associate with the environment-forming role of forest. However, there are gaps in the investigations of the influence of phytoresources of different elements of tree and shrubbery vegetation on such an important physiological factor as ionization of oxygen molecules in the ground atmosphere under different meteorological and ecological conditions in health resorts and sanatorium-resort facilities.

To study the aeroionization-forming functions of coniferous and deciduous tree plantations and possibilities of optimization of the therapeutic climate at the climatotherapeutic grounds of the sanatorium-resort facilities of the sanatorium-resort complex of the FMBA of Russia, general resort parks and terrain cures.

The protocols of comprehensive route forest, microbioclimatic and ecological studies in coniferous and deciduous forest park plantations on the territories of SRC of the FMBA of Russia, general resort parks and terrain cures in different natural areas of Moscow and Ivanovo regions, Krasnodar and Stavropol territories for 2017-2024 were investigated. A total of 20 sample plots (SPs), on each of which standard sets of natural factors (indicators) of the therapeutic climate and landscape (air ionization, microclimate factors, finely dispersed aerosol in 9 channels of particle size from 0.2 to 5 μm in the ground atmosphere, elements and volume of phytoresources) were studied, were made. The methodological recommendations №13-21 of the FMBA of Russia for ranking the balneological potential of different indicators of the therapeutic climate were used. The obtained measurement results were statistically processed on the basis of Excel program.

We investigated taxational, environmental and microbioclimatic indicators on the mentioned SPs, according to which models of the dynamics of ion unipolarity coefficient (IUC) under the influence of air temperature (IUC=0.0206X+0.3953, where X - air temperature, °C); air humidity (IUC=-0.0003X²+0.0228X+0.6853, where X - relative humidity, %); illumination intensity (IUC=0.166ln(X)+0.6367, where X - illumination intensity, lux); volume of timber supply plantation (IUC=-0.0014X+1.2885, where X - timber supply plantation, m³/ha); level of finely dispersed aerosol of particle size >5 μm (IUC=0.2243X^{0, 4842}, where X - finely dispersed aerosol, p-s/cm³) in the underplant area of green spaces were developed.

The obtained data provide a better understanding of the role of active oxygen in the process of atmospheric carbon deposition by tree vegetation, which is relevant in the presence of global climate change, as well as confirms the influence of timber supply on such an important physiological factor as the ionization of the ground atmosphere, which has important balneological significance. Issues of ecological potential of health resort areas of sanatorium-resort facilities of the Russian Federation require further study.