THE STATE OF DRAINAGE SYSTEMS IN THE NORTHERN PART OF LVIV REGION
Journal Title: Вісник Львівського університету. Серія географічна - Year 2018, Vol 52, Issue
Abstract
Recent land use and renaturalization problems on the drained areas testify about considerable decrease of biological producing ability of the soils during last decades mainly due to ineffective using of the drained areas and unsatisfactory technical state of the drainage systems. The swamped and overwatered lands in some districts of Lviv region reach 80–90 % of the territory and occur as large solid areas in the river basins. For today, most of the drainage systems are characterized by unsatisfactory technical state and lose or have lost the water regulating ability as agricultural importance. Therefore, the investigations of the present land-reclamation, ecological and technical state of drainage systems and drained areas with identification of most priority areas for wetlands renaturalization is actual and urgent scientific and practical task. Its solution is impossible without substantiation of the scientific concept and methods of investigations. The drainage systems of the Polissian part of Lviv region are studied. The objective is evaluation of the drainage systems state, ascertaining of the drained areas adaptability and service ability to renaturalization as well as substantiation and adaptation of the methods of the state evaluation. The paper deals with the history of drainage systems establishing, exploitation and investigations in the region with the aim of ecological state improving. The main characteristics of the drainage systems and their monitoring network are presented. The methods and criteria of meliorative state analysis are characterized. The impact of dewatering upon groundwater levels, the seasonal variation of groundwater level and the meliorative state of three etalon drainage systems have been analyzed.
Authors and Affiliations
Andriy Mykhnovych
Keywords
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- EP ID EP537296
- DOI 10.30970/vgg.2018.52.10184
- Views 98
- Downloads 0
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