Complex sentence: Since 1992,1611,26 hectares of woods and agricultural land surrounding Stupinigi have been preserved as the Parco naturale di Stupinigi sheltering a fragment of the region's original lowland forest, including some relict plant species no longer widely found.
Split into simpler sentences: Since 1992, woods and agricultural land surrounding Stupinigi have been preserved as the Parco naturale di Stupinigi. It has an area of 17.32 km² sheltering a fragment of the region's original lowland forest, including some relict plant species no longer widely found.