[
Fiedler M., 2004, Changes on levels of various nitrogen forms in water of midfield pond, Acta Sci. Pol, Form. Circ. 3(1): 95-100
]Search in Google Scholar
[
Ilnicki P., 1992, Udział polskiego rolnictwa w eutrofizacji wód powierzchniowych, Mat. Konf. UAM Poznań, 49: 99-112
]Search in Google Scholar
[
Koc J., 2000, Ecological significance the protection and renaturization of small water reservoirs, [in:] Renaturyzacja obiektów przyrodniczych - aspekty ekologiczne i gospodarcze, Wydawnictwo UMCS Lublin: 123-130, (in Polish)
]Search in Google Scholar
[
Koc J., 2002, Role of biogeochemical barriers in migration limiting of pollutants in the environment, Inż. Ekol. 6: 134-145, (in Polish)
]Search in Google Scholar
[
Koc J., Szymczyk S., Procyk Z., 1997, Factors influencing surface water quality of rural areas. [in:] Woda jako czynnik warunkujący wielofunkcyjny i zrównoważony rozwój wsi i rolnictwa, IMUZ Falenty: 222-229, (in Polish)
]Search in Google Scholar
[
Koc J., Szyperek U., 2004, The effect of biogeochemical barriers in limiting nitrogen outflow in agricultural environment, Annales UMCS, Sec. E, 59(1): 93-100, (in Polish)
]Search in Google Scholar
[
Müller B., Lotter A. F., Sturm M., Ammann A., 1998, Influence of catchment quality and altitide in the water and sediment composition of 68 small lakes in central Europe, Aquat. Sci. 60: 316-33710.1007/s000270050044
]Search in Google Scholar
[
Rhazi L., Grillas P., Toure A. M., Tan Ham L., 2001, Impact of land use in catchment and human activities on water, sediment and vegetation of Mediaterranean temporary pools, C. R. Acad. Sci. Paris, Sciences de la vie/ Life Sciences 324: 165-17710.1016/S0764-4469(00)01286-5
]Search in Google Scholar
[
Ryszkowski L., 1992, Rolnictwo a zanieczyszczenia obszarowe (Agriculture and the areal pollution), Postępy Nauk Rolniczych, 4: 3-14, (in Polish)
]Search in Google Scholar
[
Ryszkowski L., Marcinek J., Kędziora A., 1990, Water cycling and biogeochemical barriers in agriculture landscape, PAN Poznań, pp. 187, (in Polish)
]Search in Google Scholar
[
Solarska J., Solarski H., 1993, Movement of biogenic elements in agricultural-forest catchments in the hydrological conditions of the Masurian Lakeland, Bibl. Monit. Środ., Warszawa: 218-230 (in Polish)
]Search in Google Scholar
[
Szpakowska B., Karlik B., 1997, Leaching of dissolved organic matter, calcium and magnesium to waters of agricultural landscape, [in:] Przyrodnicze i techniczne problemy ochrony i kształtowania środowiska rolniczego, Wydawnictwo AR w Poznaniu: 181-186, (in Polish)
]Search in Google Scholar