Search academic texts

Information × Registration Number 0224U033123, (0124U002087) , R & D reports Title Environmental consequences of military actions: the effect of transfer anthropogenic load to water bodies in the western regions of Ukraine popup.stage_title Оцінка трансфомації заростей вищих водних рослин оліго-мезотрофних озер України. Head Prokopuk Mariana S., Кандидат біологічних наук Registration Date 18-12-2024 Organization State Institution "Institute of Evolutionary Ecology of the National Academy of Sciences of Ukraine" popup.description1 Assessment of the current consequences of the increased anthropogenic load on hydroecosystems in West of Ukraine by analyzing the transformation of vegetation cover of model oligo-mesotrophic lakes as an indicator of anthropogenic eutrophication. popup.description2 Under the conditions of ongoing war, the vector of recreational flows has shifted: the majority of vacationers have moved toward Western Ukraine. The oligo-mesotrophic lakes of the Volyn Polissya region have borne the brunt of this increased recreational load. Direct mechanical impact from recreationists leads to the destruction of the integrity of aquatic plant communities and the near-total eradication of hydrophytes in sandy shallow waters, which require undisturbed, compact sand for their development. Rare species of narrow-leaved Potamogeton, which are indicators of high-quality water, are under threat. These species are represented by local marginal populations, making it difficult for them to colonize new suitable habitats outside areas affected by recreational pressure. Research was conducted on the structure and assessment of recent changes in macrophyte communities in Lakes Bile and Svitiaz. Retrospective data series on macrophyte community structure, recreational load, hydrochemical characteristics of biotopes were compiled and analyzed. It is studied the conditions of oligo-mesotrophic lakes and examined the response of shallow-water vegetation zones to acute, localized impacts that result in changes to the structure and quantitative parameters of vegetation. In areas of intensive recreation, natural macrophyte vegetation is eliminated due to trampling, leaving only scattered specimens of eurytopic species. NDVI values for “trampled” shallow waters indicate a trend toward the complete degradation of plant communities in zones of intensive recreation and their inability to recover during periods between “peak” tourist seasons. A 35-year NDVI analysis reveals an overall decline in macrophyte biomass across the lakes’ littoral zones, suggesting that degradation in Lake Bile has reached critical levels. The loss of macrophyte barrier and sedimentation functions is expected to accelerate eutrophication, underscoring the need for urgent ecological management. Product Description popup.authors Krylov Yaroslav I. popup.nrat_date 2024-12-18 Close