 Of the rest of the land, or 36.1% is settled (buildings or roads), or 1.7% is either rivers or lakes and or 0.4% is unproductive land.Of the built up area, industrial buildings made up 10.9% of the total area while housing and buildings made up 10.5% and transportation infrastructure made up 12.6%.Power and water infrastructure as well as other special developed areas made up 1.7% of the area Out of the forested land, 34.5% of the total land area is heavily forested and 6.3% is covered with orchards or small clusters of trees.