Spatial variability of nutrients (N, P) in a deep, temperate lake with a low trophic level supported by global navigation satellite systems, geographic information system and geostatistics.

We investigated changes in the spatial distribution of phosphorus (P) and nitrogen (N) in the deep, mesotrophic Lake Hańcza. The raw data collection, supported by global navigation satellite system (GNSS) positioning, was conducted on 79 sampling points. A geostatistical method (kriging) was applied in spatial interpolation.

Restoration of two shallow, urban lakes using the phosphorus inactivation method - preliminary results.

This paper presents the initial environmental effects of polyaluminum chloride application on the water quality of two connected, shallow urban lakes in the Mazurian Lakeland, Poland. The water quality of Lake Domowe Duże (62 ha, mean depth 2.4 m) and Lake Domowe Małe (11 ha, mean depth 2.

Durability of changes in phosphorus compounds in water of an urban lake after application of two reclamation methods.

The study was conducted on Długie Lake (area 26.8 ha, maximum depth 17.3 m), located in the town of Olsztyn, in north-eastern Poland (the Masurian Lake District).