Photo by João Palma
near Portalegre, Portugal by João Palma
Santarém, Portugal
Foros de Vale Figueira, Portugal by João Palma
Mértola, Portugal. Photo by Ana Tomás
SouthEast Portugal. by João Palma
Shropshire, UK. Photo by Jo Smith, ORC
Auch, France. Photo by Cristina Nascimento
Transferencia de un método para el control de la erosión en el olivar