02693naa a2200289 a 450000100080000000500110000800800410001902200140006002400420007410000170011624501530013326000090028650005130029552011860080865300410199465300630203565300350209865300150213365300300214865300230217865300210220170000160222270000170223870000270225570000170228277301040229910644712024-02-23       2024    bl uuuu     u00u1 u    #d  a0264-83777 a10.1016/j.landusepol.2023.1070232DOI1 aCASTAGNA, A.  aLand use planning to minimize the export of phosphorusbAn optimization model for dairy production at a catchment area scale.h[electronic resource]  c2024  aArticle history: Received 10 February 2023; Received in revised form 7 December 2023; Accepted 8 December 2023; Available online 28 December 2023. -- Correspondence: Castagna, A.; Instituto Nacional de Investigación Agropecuaria (INIA), Área de Producción Familiar, Estación Experimental INIA Las Brujas, Canelones, Uruguay; email:castagna.andres@gmail.com -- Funding: This work was supported by the Agencia Nacional de Investigación e Innovación (ANII, Uruguay), grant number POS_NAC_2015_1_109543. --  aABSTRACT.- The intensification of activities in the Santa Lucia River basin in Uruguay has resulted in an increase in the concentration of nutrients in surface waters with the consequent acceleration of the eutrophication. Dairy production, of great relevance in the area, needs to increase production to ensure the economic viability of the activity. In this context, it is necessary to find solutions that address trade-offs between productivity and polluting potential. A dairy sub-basin of the Santa Lucia River was selected as a case study to develop an optimization model with the aim of minimizing phosphorus exportation over a four-year planning horizon while meeting restrictions on the crop sequence allowed, dry matter productivity and number of crops in each sub-basin producer. An integer linear programming formulation was proposed to model the problem. It was possible to obtain a model that managed to reduce phosphorus runoff losses by planning land uses and complying the restrictions. Exists a wide field of improvement of the model, which is a useful tool for analysis of scenarios and trade-off between productivity and environmental care. © 2023 Elsevier Ltd  aÁREA DE PRODUCCIÓN FAMILIAR - INIA  aÁREA DE RECURSOS NATURALES, PRODUCCIÓN Y AMBIENTE - INIA  aGeographic information systems  aManagement  aMathematical optimization  aNonpoint pollution  aSpatial modeling1 aMATONTE, F.1 aMAUTTONE, A.1 aRODRÍGUEZ-GALLEGO, L.1 aBLUMETTO, O.  tLand Use Policy. 2024. Volume 138, article 107023. https://doi.org/10.1016/j.landusepol.2023.107023