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The impact of the drainage network on surface runoff formation in the Somyne mire in the context of hydrological regime restoration
(КПІ ім. Ігоря Сікорського, 2025) Korbutiak, Vasyl; Statnyk, Ihor; Fenchuk, Viktar; Khodnevych, Yaroslav; Benatov, Daniel; Lishchynskyi, Anatolii
In Western Polissia, the peatland complexes of the Rivne Nature Reserve provide vital ecosystem services. However, their hydrological regime has undergone significant alterations due to land reclamation and military-agricultural development. Using the Somyne Mire as a case study, the consequences of drainage have been analysed, including peat degradation, the disappearance of autochthonous communities, increased wildfire risk, and the intensification of drought and flood extremes. Using Sentinel-1 radar imagery (VH polarisation) from 2019, the impact of the channel network and dam on the distribution of surface runoff in the area surrounding the Somyne Mire has been demonstrated. With support from the Frankfurt Zoological Society, a hydrological rehabilitation project has been launched, involving the blocking of drainage canals with earthen dams, ongoing monitoring, and adaptive management. The expected outcomes include the restoration of natural moisture and organic matter accumulation processes, increased biodiversity, stabilisation of baseflows in small rivers, and a reduction in flood peaks.