The dissertation is dedicated the research of the ecological state of pioneer succession with the participation of Pinus sylvestris L. on waste heaps of coal mines and features of natural phytomelioration within Male Polissia. As a result of the conducted researches the ecological conditions of the pioneer succession with the participation of Pinus sylvestris L. and landscape-transforming factors of phytomeliorative processes on the surface of waste heaps of coal mines in Male Polissia were established. Taking into account ecological factors, the typification of heaps of the studied region is developed, according to which 8 levels of hierarchical distribution are offered: on the size of the III category are big (occupied the area more than 10 hectares), average (5-10 hectares), small (0.3-5 hectares); by form, they are irregular form and correct form (reclaimed); depending on the backfill, the rocks are typified on active and inactive heaps. The ecological state of pioneer succession and phytomeliorative processes depend on the state of operation of waste heaps in coal mines, it can be operating, extinguished, 24 reclaimed. Phytomeliorative efficiency coefficients were calculated, which showed that the lowest values of KFM are inherent in the tops of waste heaps - KFM = 2.1 for PAT "Lviv Coal Company" and KFM = 3.6 for Mine №3 (due to wind erosion and depleted mineral status of substrate). At the side slopes, the phytomeliorative efficiency coefficients are slightly higher, especially from the north - KFM = 4.5 for PAT Lviv Coal Company and KFM = 4.65 for Mine №3 (higher humidity than at other slopes and peaks). At a distance of 100 m from the foothills in the northern direction, the coefficients of phytomeliorative efficiency acquired the highest values (KFM = 5.55 for PAT "Lviv Coal Company" and KFM = 6.55 for Mine №3), which is explained by more favourable edapho-climatic conditions. Improving the conditions of habitat and restoration of vegetation can be ensured by terracing the slopes, covering with loose soils of mine rock. The floristic core of the vegetation cover of waste heaps is formed by meadow and synanthropic species with a wide range of tolerance, able to withstand adverse environmental conditions. The typological scheme of vegetation of waste heaps of mines can be presented in the form of a quadrangle, in the centre of which there are meadow and synanthropic vegetation, and in the corners: 1. boreal and psammophilous; 2. immoral forest; 3. hydrophilic; 4. meadow-steppe and calcepetrophilic. The mining stage of reclamation should be provided only for existing heaps. Fading heaps are already subject to natural overgrowth of Pinus sylvestris L. (northern and western exposures of slopes), so the mining stage should be carried out in landslides and where there is no grass cover. Key words: waste heap, landscape, ecological condition, pioneer succession, phytomelioration, Scots pine, gas resistance, salt resistance, heat resistance.
