Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 33 checked references that resolve
resolves10.1007/s00254-005-1284-4Remote sensing and GIS for artificial recharge study, runoff estimation and planning in Ayyar basin, Tamil Nadu, India
resolves10.1016/j.ecolmodel.2009.06.011A multi-scale approach to modelling spatial and dynamic ecological patterns for reservoir's water quality management
resolves10.1016/j.ecolind.2008.05.010A Stochastic Dynamic Methodology (StDM) for reservoir's water quality management: Validation of a multi-scale approach in a south European basin (Douro, Portugal)
resolves10.1007/s11269-008-9268-2Modelling Impacts of Land Cover Change on Critical Water Resources in the Motueka River Catchment, New Zealand
resolves10.1016/S0048-9697(02)00625-3Changing perspectives on the importance of urban phosphorus inputs as the cause of nutrient enrichment in Lough Neagh
resolves10.1016/j.jenvman.2004.09.010The consequences of land use change on nutrient exports: a regional scale assessment in south-west Victoria, Australia
resolves10.1016/0022-1694(95)02951-6Evaluation and management of the impact of land use change on the nitrogen and phosphorus load delivered to surface waters: the export coefficient modelling approach
resolves10.1023/A:1015721416839Landscape, regional and global estimates of nitrogen flux from land to sea: Errors and uncertainties
resolves10.1046/j.1365-2427.1996.00099.xThe determination of total nitrogen and total phosphorus concentrations in freshwaters from land use, stock headage and population data: testing of a model for use in conservation and water quality management
resolves10.1111/j.1475-2743.2007.00120.xLand use scenarios for England and Wales: evaluation of management options to support ‘good ecological status’ in surface freshwaters
resolves10.1016/j.scitotenv.2006.02.053Nitrogen in river basins: Sources, retention in the surface waters and peatlands, and fluxes to estuaries in Finland
resolves10.1080/07438140509354440Effects of Catchment Development on the Trophic Status of a Deep and a Shallow Reservoir in Portugal
resolves10.1080/00207230701783577Catchment consultation for water management: The case of two Portuguese reservoirs with different water quality
resolves10.1002/hyp.6897Vulnerability of water resources, vegetation productivity and soil erosion to climate change in Mediterranean watersheds
resolves10.1007/s11269-006-9043-1Possibilities and problems with the use of models as a communication tool in water resource management
resolves10.1139/f80-184A Procedure Using Modeling and Error Analysis for the Prediction of Lake Phosphorus Concentration from Land Use Information
resolves10.1016/S0304-3800(97)00205-6GIS-based modelling of solute fluxes at the catchment scale: a case study of the agricultural contribution to the riverine nitrogen loading in the Vejle Fjord catchment, Denmark
resolves10.2307/2269490Phosphorus Loads to Surface Waters: A Simple Model to Account for Spatial Pattern of Land Use
resolves10.1007/BF00749942Modelling of N-movements on catchment scale - a tool for analysis and decision making
resolves10.1016/j.foodpol.2007.04.001Implications for food production, land use and rural development of the European Union’s Single Farm Payment: Indications from a survey of farmers’ intentions in Germany, Portugal and the UK
The 20 references without a DOI — listed, not checked
no DOI — not checkedAlves AL, Carvalho NS, Castel-Branco da Silveira S, Marques JP, Costa Z, Horta ALL (2003) The abandonment of agriculture. Agro-Environmental Working Group. Ministry of Agriculture, Rural Development and Fisheries and Ministry of the Environment and Ordenamento do Território, Lisbon [In Portuguese]
no DOI — not checkedBrandjes PJ, de Wit J, Van der Meer HG, Van Keulen H (1996) Environmental impact of animal manure management. Wageningen, International Agriculture Centre, The Netherlands
no DOI — not checkedEuropean Commission (2002) Common Implementation Strategy for the Water Framework Directive. Guidance Document No. 3, Analysis of Pressures and Impacts. The Directorate General Environment of the European Commission, Brussels
no DOI — not checkedEuropean Commission (2006) Rural Development in the European Union—Statistical and Economic Information. European Commission, Directorate-General for Agriculture and Rural Development, Brussels
no DOI — not checkedEuropean Communities (2006) European Communities Good Agricultural Practices for Protection of Waters. Regulations 2006, S.I. No. 378 of 2006. The Stationery Office, Dublin
no DOI — not checkedINAG (Instituto da Água) (2002) Sado River Basin Management Plan – Final Report. Ministério do Ambiente e do Ordenamento do Território, Lisboa
no DOI — not checkedINAG (Instituto da Água) (2009) Sado and Mira Hydrographic Region: Water Management Issues. National Water Institute and Administration of Alentejo Hydrographic Region, Lisboa
no DOI — not checkedINAG (Instituto da Água) (2010) National Information System of Hydrologic Resources. http://snirh.pt . Accessed 30 January 2010
no DOI — not checkedINIA-LQARS (Instituto Nacional de Investigação Agrária – Laboratório Químico Agrícola Rebelo da Silva) (2005) Fertilisation manual of cultivated crops.Ministry of Agriculture, Rural Development and Fisheries, Lisboa [In Portuguese]
no DOI — not checkedINSAAR (Inventário Nacional de Sistemas de Abastecimento de Água e de Águas Residuais) (2009) National Inventory of Water Supply Systems and Sewage Treatment Plants. http://insaar.inag.pt/ . Accessed 28 December 2009
no DOI — not checkedJohnes PJ (2000) Quantifying the non-point source contribution to nutrient loading on freshwaters in 32 UK catchments. Verh Int Verein Limnol 27:1306–1309
no DOI — not checkedMADRP (Ministério da Agricultura, do Desenvolvimento Rural e das Pescas) (2000) Basic Manual of Agricultural Practices: Soil and water conservation. Ministry of Agriculture, Rural Development and Fisheries Publications, Lisboa [In Portuguese]
no DOI — not checkedNational Statistics Institute (Instituto Nacional de Estatística, Portugal) (2001a) Territorial Census. National Statistics Institute of Portugal, Lisboa
no DOI — not checkedNational Statistics Institute (Instituto Nacional de Estatística, Portugal) (2001b) Agricultural Census. National Statistics Institute of Portugal, Lisboa
no DOI — not checkedNunes JM, Pereira S, Albardeiro A, Silva C, López-Piñero A, Pintado C (2001) Potentialities of olive mill waste utilisation as organic fertiliser for Mediterranean Region soils. Revista de Ciências Agrárias 24(3/4):116–175
no DOI — not checkedOECD (1982) Eutrophication of waters: Monitoring, assessment, and control. Organisation for Economic Co-operation and Development, Paris
no DOI — not checkedPortuguese Environmental Agency (Agência Portuguesa do Ambiente) (2010) Corine Land Cover 1990 and 2006. http://www.apambiente.pt . Accessed 3 January 2010
no DOI — not checkedSoares FB, Coelho C (2004) Analysis of the impact of the Luxembourg agreement on reform of the common agricultural policy on the agri-food sector of Portugal: an application of the AG-MEMOD model. Paper prepared for the Fourth National Meeting of Agricultural Economists, Faro, Portugal
no DOI — not checkedUrban Waste Water Treatment Directive (UWWT; 91/271/EEC): OJ L135 40–52,1991. Amended to clarify standards for total N and P by Directive 98/15/EEC, OJ 67 29–30, 1998.
no DOI — not checkedWater Framework Directive (2000/60/EC): OJ L327 1–72, 2000
checked 2026-07-23 — re-checked daily as this page is visited;
titles and statuses come from Crossref and DataCite and are not part of the signed record
Both snippets point at the live badge image and link back to this page. The
badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.