References
- Antelo Cortizas , J. M. and Arce Vázquez , F. 1996 . “ Características fisicoquímicas das augas superficiais ” . In As Augas de Galicia , Edited by: Díaz Fierros , F. 351 – 446 . Santiago de Compostela, Spain: Consello da Cultura Galega .
- Bubb , J. M. and Lester , J. N. 1994 . Anthropogenic heavy metal inputs to lowland river systems, a case study: The River Stour, UK . Water, Air and Soil Pollution , 78 : 279 – 296 .
- Cantarero , A. , ópez , M. B. L , Mahía , J. , Maestro , M. A. and Paz , A. 2002 . Determination of total and dissolved phosphorus in agricultural runoff samples by inductively coupled plasma mass spectrometry . Communications in Soil Science and Plant Analysis , 33 : 3431 – 3436 .
- Concaret , J. and de Crecy , J. 1989 . Composition des eaux de drainage. Resultats experimentaux . Soil Technology , 2 : 185 – 203 .
- de Vries , W. , Römkens , P. F. A. M. , van Leeuwen , T. and Bronswijk , J. J. B. 2002 . “ Heavy metals ” . In Agriculture, hydrology, and water quality , Edited by: Haygarth , P. M. and Jarvis , S. C. 107 – 132 . Wallingford , UK : CAB International .
- Díaz-Fierros Viqueira , F. 2003 . “ As augas superficiais. Calidade natural das augas superficiais ” . In Reflexións sobre o medio ambiente en Galicia , Edited by: Casares Long , J. J. 277 – 298 . Santiago de Compostela , , Spain : Consellería de Medio Ambiente, Centro de Desenvolvemento Sostible, Xunta de Galicia .
- Díez López , J. A . 1995 . “ Situación actual de la contaminación de los acuíferos por nitratos ” . In La calidad de las aguas continentales españolas: Estado actual e investigación , Edited by: Álvarez Cobelas , M. and Cabrera Capitán , F. 155 – 170 . Logroño , , Spain : Ediciones Geoforma .
- Foster , I. D. L. and Charlesworth , S. M. 1996 . Heavy metals in the hydrological cycle: Trends and explanation . Hydrological Processes , 10 : 227 – 261 .
- Gardiner , M. J. 1986 . Use of soil climatic date to predict hydraulic loading behavior of Irish soil . Soil Use and Management , 2 : 146 – 149 .
- Gupta , R. K. , Rudra , R. P. , Dickinson , W. T. and Wall , G. J. 1997 . Surface water quality impacts of tillage practices under liquid swine manure application . Journal of the American Water Resources Association , 33 ( 3 ) : 681 – 687 .
- Meybeck , M. and Helmer , R. 1989 . The quality of rivers: From pristine stage to global pollution . Paleography, Paleoclimatology, Paleoecology , 75 : 283 – 309 .
- Omernik , J. M. 1976 . The influence of land use on stream nutrient levels (EPA-600/3-76-014) , Washington , D.C : U.S. Government Printing Office .
- Pawlik-Dobrowolski , J. 1983 . Changes in the chemical composition of surface waters under the influence of surface run-off pollution in the western Carpathian Mountain , Krakow, Poland: Institute Land Reclamation and Grassland .
- Sande Fouz , P. , Vidal Vázquez , E. and Paz González , A. 2006 . Heavy-metal losses from an agroforestry catchment . Communications in Soil Science and Plant Analysis , 37 : 2745 – 2750 .
- Sande Fouz , P. , Mirás Avalos , J. M. , Vidal Vázquez , E. and Paz González , A. 2009 . Phosphorus contents and loads at the outlet of an agroforestry catchment in northwestern Spain . Communications in Soil Science and Plant Analysis , 40 : 660 – 671 .
- Sekhar , M. C. and Raj , P. A. 1995 . Land use–water quality modeling: A case study . Water Science and Technology , 31 : 383 – 386 .
- Stachowicz , K. 1993 . Nonpoint pollution from agricultural watersheds in the Carpathian Plateau (southern Poland) . Water, Air and Soil Pollution , 69 : 149 – 163 .