HEFEI, CHINA - AUGUST 24: (CHINA OUT) <br />
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Farm Built On Hefei's Shopping Mall Rooftop<br />
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A farm on a shopping mall rooftop is seen at Luyang District on August 24, 2015 in Hefei, Anhui Province of China. 7,800 square meters have developed to plant 23 kinds of vegetables on 17,000-suqare-meter rooftop of a four-story shopping mall in south China's Hefei City. There's still a playground for children beside the farm. According to a person in charge of the farm, the farm has taken 6 layers of waterproof and sandproof based on the original waterproof device but people should be charged when experiencing and purchasing on the farm.<br />
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