Photo taken on Aug. 4, 2016 shows an eco-pig raising base in a forest in the Greater Hinggan Mountains, northeast China's Heilongjiang Province. Chinese forestry authorities shut down commercial logging in two major forests in the northeastern-most part of the country in a bid to help restore the ecosystem in 2014. The move ended more than half a century of timber logging in the Greater and Lesser Hinggan Mountains. Alternative ecological businesses have been taking root in local area after two-year logging ban. (Xinhua/Wang Kai)