Aerial photo taken on Sept. 18, 2018 shows villagers collecting river snails in the rice field of Yaolong Village of Rongshui Miao Autonomous County in Liuzhou, south China's Guangxi Zhuang Autonomous Region. The harvest season of river snails in Liuzhou has begun. In recent years, the promotion of river snail rice noodles benefits over 4,500 impoverished households in Liuzhou. (Xinhua/Li Hanchi)