Due to the rugged mountainous terrain of the island the regions of the Dominican Republic developed in isolation from one another. In the south, also known at the time as Ozama, the economy was dominated by cattle-ranching (particularly in the southeastern savannah) and cutting mahogany and other hardwoods for export. This region retained a semi-feudal character, with little commercial agriculture, the hacienda as the dominant social unit, and the majority of the population living at a subsistence level. In the north (better-known as Cibao), the nation's richest farmland, farmers supplemented their subsistence crops by growing tobacco for export, mainly to Germany. Tobacco required less land than cattle ranching and was mainly grown by smallholders, who relied on itinerant traders to transport their crops to Puerto Plata and Monte Cristi. Santana antagonized the Cibao farmers, enriching himself and his supporters at their expense by resorting to multiple peso printings that allowed him to buy their crops for a fraction of their value. In 1848, he was forced to resign and was succeeded by his vice-president, Manuel Jimenes.