Agricultural policies and countryside management. A comparative European study

agriculteur agricultores agricultural policies biodiversidad biodiversity comportamiento humano comportement humain conservation du paysage cultivated land environmental impact europa occidental europe occidentale farm structure farmers human behaviour impact sur l'environnement impacto ambiental incentives incentivos incitation landscape landscape conservation motivation multiple land use paisaje paysage planification planning politique agricole socioeconomic organization sostenibilidad structure d'exploitation agricole sustainability tierras cultivadas uso multiple de la tierra western europe