Complex sentence: In the mid 20th century the mountainous part was taken over by the Balearic Government as a publicly owned nature reserve while the fertile farm land was planted with fruit trees, more recently this was turned over to grape vines and various wines are produced.
Split into simpler sentences: In the mid 20th century the mountainous part was taken over by the Balearic Government as a publicly owned nature reserve while the fertile farm land was planted with fruit trees. More recently this was turned over to grape vines and various wines are produced.