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Information × Registration Number 0224U031650, 0114U003400 , R & D reports Title To investigate of changes of ecology-ameliorative state of drained wetlands in Ukraine. popup.stage_title Head Ladyka Maryna M., Кандидат сільськогосподарських наук Registration Date 30-05-2024 Organization National University of Life and Environmental Sciences of Ukraine popup.description2  Object of research – the process of changes in the ecological and ameliorative state and the main indicators of fertility of drained wetlands in the basins of the Trubyzh River and the Irpin River at the current stage of land use. Subject of research – hydromorphic and semi-hydromorphic soils of the Trubizh River and the Irpin River basins, separate indicators of their properties and fertility. Spatial changes in drained wetlands' ecological and reclamation state at this reclamation network stage and drained territories' use were studied. The impact of the deposition of greenhouse gases and the development of degradation processes was investigated. It was established that the reclamation situation in the Trubizh and Irpin drainage systems is mainly unfavourable with separate cases of such dangerous processes as flooding (when the water table rises above 50 cm) and over-drying (aridization) of the soil stratum (when the water drops below 125-200 cm). Floodplain organic soils of the Trubizh River and Irpin River basins have a "one-sided" potential fertility against the background of a very high content of organic matter and mineral nitrogen and low potassium and phosphorus content. The peat soils of the Trubizh River Basin floodplains are weakly alkaline with a pH of 7.7-8.0, and the Irpin River Basin peat soils are mostly neutral (pHC of 6.8-7.6). It was analyzed that the greatest accumulation of greenhouse gases occurs in a lowland weak peat soils with groundwater level (GWT) of 90 cm - 2138.9 t CO2 eq/ha, and the lowest - in a swamp peat-mud (meliogenic) soil with a GWT > 320 cm - 461.33 t CO2 eq/ha. The increase of groundwater levels causes the reduction of the emission of greenhouse gases from organic soils. Thus, higher groundwater levels ensure greater retention of carbon by the peat layers. On-site studies confirm the general deterioration of the technical condition of reclamation networks, their ageing and, accordingly, their inability to fully perform their Product Description popup.authors Bazyaruk Mariia P. Huzenko Anna P. Korkh Oleksandr V. Ladyka Maryna M. Wu Roufan popup.nrat_date 2024-05-30 Close