 Of the rest of the land, or 27.8% is settled (buildings or roads), or 3.2% is either rivers or lakes and or 1.6% is unproductive land.Of the built up area, industrial buildings made up 6.4% of the total area while housing and buildings made up 13.9% and transportation infrastructure made up 6.4%.Power and water infrastructure as well as other special developed areas made up 1.1% of the area Out of the forested land, 46.5% of the total land area is heavily forested and 7.0% is covered with orchards or small clusters of trees.