Complex sentence: The northern "Humid" (Dutch "Vochtig") part has a high water table and many springs; it is by far the main fruit growing area of Belgium, as well as home to some of the most northerly vineyards in Belgium.
Split into simpler sentences: The northern "Humid" (Dutch "Vochtig") part has a high water table and many springs. And it is also home to some of the most northerly vineyards in Belgium.