Changes in the hydrographic network of a small catchment based on the example of River Plutnica (northern Poland)

摘要

The aim of the paper is to show the man-made changes to the hydrographic network in a chosen small-scale catchment. The research was conducted in the Ptutnica River catchment, which is situated in northern Poland on the Puck Bay. On the basis of the obtained results, it can be established that the catchment is under a strong influence of both natural conditions and anthropogenic activity. Over the last 200 years, considerable changes resulting mainly from human activity have been documented.