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Abstract

The research was carried out in the Greater Poland’s commune of Rokietnica adjacent to the administrative borders of the Poznań city. Most of these areas are part of the Nature 2000 „Dolina Samicy”. The aim of the study was to make an inventory and to assess changes in the number of ponds and watercourses in the 19th and 21st centuries. The researchers used The Geographic Information System. Data analysis was performed using ArcMap 10.2 software. The results are presented in for form of tables and maps which show the changes concerning ponds and watercourses in the 19th and 21st centuries.

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