The photo, taken on December 20, shows self-unloading tractors unload packages of straw at a renewable energy power company in Mengxi Town, Lixian County. At the harvest season of late rice, the county authority encouraged the locals to package straw which can be fully burnt into bundles, and sent them to the power plant, to realize recycling of straw stalks and increase farmers’ income. (Photo/Bai Yipu)