 Of the rest of the land, or 15.6% is settled (buildings or roads), or 1.6% is either rivers or lakes and or 0.1% is unproductive land.Of the built up area, industrial buildings made up 1.3% of the total area while housing and buildings made up 5.2% and transportation infrastructure made up 5.6%.Power and water infrastructure as well as other special developed areas made up 3.1% of the area Out of the forested land, all of the forested land area is covered with heavy forests.