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Purpose. Modelling environmentally safe bioenergy trends based on national and international pa-tent databases and scientific databases. Methods. Bibliometric method of analysis using the Scopus database and patent databases, model-ing methods using a special visualization software package. Results. An analytical diagram based on the review of patent databases was developed, as well as a model for visualization of interrelationships between clusters of bioenergy development trends as a com-plex solution for environmental protection. Thus, 4 clusters were formed based on data from the Scopus database using VOSviewer software: 1) cluster (red) reveals the environmental problems of changing the direction of implementation of stationary energy sources with the development of bioenergy potential, and the creation of strategies for this development at the level of regions; 2) cluster (yellow) covers the pro-cess of restoration of ecological systems, in particular forests and reduction of CO2 emissions from bioen-ergy; 3) cluster (green) covers the production and use of different types of fuel and energy produced by the introduction and improvement of bioenergy technologies; 4) cluster (blue) covers the impact of bioen-ergy technologies on environmental restoration and purification and reduction of damage from anthropo-genic impact. Conclusions. The analysis of patent databases with cluster visualization based on a bibliometric ap-proach allowed to identify the most promising areas of research in the field of bioenergy solutions devel-opment. Further research will be focused on the development of a lab bench for biogenic gas production with the possibility of complex processing of secondary raw materials and obtaining environmentally safe digestates.

Purpose. To assess the main trends in the formation of nature reserves and the degree of protection of the territory of Sumy region to determine the directions of development of the regional ecological net-work. Methods. Methods of historical analysis, statistical processing, spatial modeling, evaluation and generalization of the obtained data are used. Results. During the study period since 1991, the area of NPF has increased 5.44 times, and the num-ber of NPF objects - almost 2 times and in 2019 is 275 units. Comparison of administrative districts of Sumy region by the number of NPF objects allows to determine the districts - "leaders": Romensky (37), Sumy and Lebedyn (25 pieces each), Krolevets (24) and districts - outsiders - Buryn (5), Shostka (7) and Velykopysarivsky 8). By the area of the nature reserve fund "leaders" - Putivl district (39298.55 hectares) and Konotop district (32440.7 hectares). The discrepancy between a large number of objects and the area of the NPF prompted the determination of the percentage of reserves and modeling of the relationship between these three indicators. Based on car-tographic visualization and statistical modeling, recommendations have been developed, the main of which are: intensification of the creation of NPF objects of local significance, first of all, in the areas that are most "lagging behind" in the process of bequest; renewal of previously rejected NFP Projects and facil-itate their approval; initiating activities to promote tourist routes on unique natural, historical, ethnograph-ic sites of the NPF for economic support of communities. Conclusions. It is established that the degree of protection of the territory of Sumy region is lower than recommended and averages 7.43%. Spatially, there is a band of high concentration of NPF objects with relatively large areas, which even exceeds the recommended (Konotop, Krolevets and Putivl, or ac-cording to the new zoning - Krolevets district) in the central part of the region, which is surrounded on both sides by areas with low percentage (up to 5%) of protected areas and only the extreme northern and southern parts of the region (Seredino-Budsky, Trostyanetsky, Velykopysarivsky and Okhtyrsky districts) are approaching the norm in terms of the percentage of protected areas. The patterns identified by model-ing allow us to recommend increasing the share of NPF in the total area of the region in two directions - increasing the area of the existing facilities or creating a large number of new ones with small areas.

Shown that the multiple regression model interannual changes of average monthlyspeed of wind in Kirovograd in february and august, with maximal robustness to temporary shifts in the future, allow for efficient prediction of the process of preemption, at least 8 years. Decrease of the average wind speeds in the mentioned months, that happened here in the previous thirty years, from 2011 to 2017., stops that would make it more favorable prospects in regigone wind

The basis of the mathematical models of flooding in coastal areas of the reservoir taken the fundamental equations of continuity and flow in porous media, mass transfer and mass transfer. The influence of physical and chemical processes of a filtration small disperse the weighed particles on process of flooding by subsoil waters is defined.

The scientific justification for universal automated geographic information systems software of soil water erosion models is given, there are examples of its use to assess the risk of erosion of land and the design of optimal anti erosion measures. The basis of the information network laid vector principle, to automatical determine the line flow, catchment basins, slope and exposure to arbitrary points of the territory of the study and take into account the discrete-continuous nature of erosion processes.

The results of the comparison of archival topographic maps with materials tacheometry are presented. Found that the existing maps are outdated and do not provide objective information about the relief area. The possibilities of the program with respect to WEPP modeling of water erosion are shown.

The article contains the results of research of agro-landscape of the Chuguevskogo district of the Kharkov area for the necessities of the landscape planning. The series of cartographic works are developed with applica-tion hybrid-type GIS – technologies which allow to draw conclusion in relation to the degree of anthropogenic transformation of agro-landscape. The row of optimization measures is offered for the settlement of loading on agro-landscape and improvements of ecological situation in a district.

For research of intercommunication between the levels of toxicness and muddiness of water were drawn on the results of measuring of component composition and determination of toxicness of sewages of enterprises of the different industries of economy, located on territory of a few areas of Ukraine. It is shown that in each of cases the set of meaningful physical and chemical indexes which correlate with data of biotesting is different and depends on component composition of sewages. The brought results over are base on the use of far of experimental data and have an important practical value for the exposure of reasons of origin of toxic properties of sewages with the purpose of realization of corresponding nature protection measures on their removal.

An example of channel modeling costs in the selected channel section during the spring flood in the basin, likely modeled inundation zone, defined Channel consumption during the summer storm flood. The possibility of computer technology water distribution to assess the ecological condition of surface water bodies and catchment areas.