ASSESSMENT OF THE PLANT COMMUNITIES AND THEIR TRANSFORMATION CURRENT STATE UNDER GLOBAL WARMING AND ANTHROPOGENIC IMPACT CONDITIONS

The article presents the results of many years of research on the state of plant communities and their transformation under conditions of global warming and anthropogenic pressure. The reasons for the development of vegetation change processes in the phytocenoses of pastures in conditions of insufficient moisture are also considered. Studies have established the negative impact of external factors on the preservation of valuable forage grasses. The influence of arid ecosystems of natural pastures of the Kochubey Biosphere Station of the Northwestern Caspian Sea on changes in vegetation structure, processes of community transformation, dynamics of species diversity and productivity of plant communities has also been studied. The spatial structure and current state of the arid landscapes of the Kochubey Biosphere Station have been studied and the analysis of modern landscape conditions has been carried out. The characteristics of the general features of seasonal dynamics of landscapes are also studied. Possible trends of climatic changes in the landscape structure of the territory and trends of anthropogenic transformation of arid landscapes of the region are revealed. The role of the hydrothermal regime in the functioning of landscapes is revealed, the analysis of modern climatic conditions of landscapes is carried out, the characteristics of the general features of seasonal dynamics of landscapes are studied. The species composition of the occurrence of species by year in the seasonal aspect under natural moisture, depending on environmental, anthropogenic and soil factors, has been studied. The factors influencing the species composition, the occurrence of species and the productivity of phytomass in the long-term regime have been studied.