SHORT COMMUNICATION
		
		 
	
	
	
		Application of GIS and GPS Tools in Qualification
and Classification of a Lake’s Ecological Status
	
	
		Piotr Dynowski1, Anna Źróbek-Sokolnik1, Hanna Ciecierska1, Jan Dziedzic1,
Ryszard Piotrowicz2, Czesław Hołdyński1
		
			
			Pol. J. Environ. Stud. 2014;23(2):639-645
		
		
			
	
	 
	
		
		
 
		
		
	
			ORIGINAL RESEARCH
		
		 
	
	
	
		Seasonal Behavior and Spatial Fluctuations
of Groundwater Levels in Long-Term Irrigated
Agriculture: the Case of a Sugar Estate
	
	
		Megersa Olumana Dinka1, Willibald Loiskandl2,
Julius Musyoka Ndambuki1
		
			
			Pol. J. Environ. Stud. 2013;22(5):1325-1334