Aerial photo taken on Oct. 12, 2021 shows a view of winter jujube orchard in Huanghua City, north China's Hebei Province. Known as the home of winter jujube, Huanghua City sees an effective increase in local people's income in recent years as the local government made great efforts in expanding the winter jujube sales channels and strengthening the winter jujube processing chain. [Photo by Luo Xuefeng/Xinhua]

A man sorts winter jujubes in Juguan Village, Huanghua City, north China's Hebei Province, Oct. 12, 2021. Known as the home of winter jujube, Huanghua City sees an effective increase in local people's income in recent years as the local government made great efforts in expanding the winter jujube sales channels and strengthening the winter jujube processing chain. [Photo by Luo Xuefeng/Xinhua]

Staff members sell winter jujubes via live streaming in Juguan Village, Huanghua City, north China's Hebei Province, Oct. 12, 2021. Known as the home of winter jujube, Huanghua City sees an effective increase in local people's income in recent years as the local government made great efforts in expanding the winter jujube sales channels and strengthening the winter jujube processing chain. [Photo by Luo Xuefeng/Xinhua]

A worker carries winter jujubes at a processing factory in Huanghua City, north China's Hebei Province, Oct. 12, 2021. Known as the home of winter jujube, Huanghua City sees an effective increase in local people's income in recent years as the local government made great efforts in expanding the winter jujube sales channels and strengthening the winter jujube processing chain. [Photo by Luo Xuefeng/Xinhua]

Workers process winter jujube products at a factory in Huanghua City, north China's Hebei Province, Oct. 12, 2021. Known as the home of winter jujube, Huanghua City sees an effective increase in local people's income in recent years as the local government made great efforts in expanding the winter jujube sales channels and strengthening the winter jujube processing chain. [Photo by Luo Xuefeng/Xinhua]