sentences:  Of this area, or 34.4% is used for agricultural purposes, while or 23.1% is forested.Of the rest of the land, or 40.5% is settled (buildings or roads), or 0.6% is either rivers or lakes and or 1.2% is unproductive land.Of the built up area, industrial buildings made up 10.7% of the total area while housing and buildings made up 11.6% and transportation infrastructure made up 12.7%.