Retentivity as an Indicator of the Capacity of Basins without an Outlet to Accumulate Water Surpluses

摘要

The initial hypothesis assumed in our research was that an improvement in the water cycle in the river catchments chosen for analysis could be obtained using their natural basins without outlets to store rainwater from natural and urbanised areas. The chief goal of the research was to identify the types and conditions of retention in each of the catchments. Fieldwork was carried out in the catchments of the upper Parseta and the Potok Oliwski, rivers situated in the Baltic drainage area in the coastal zone of northern Poland.