A farmer picks red jujubes at an orchard in Ruoqiang County, northwest China's Xinjiang Uygur Autonomous Region, Oct. 29, 2019. Ruoqiang County is famous for its red jujubes. The per capita annual income of jujube farmers in this county exceeds 30,000 yuan (about 4,249 U.S. dollars). (Xinhua/Zhao Ge)

Chen Xiaoming dries red jujubes in the yard of his house in Ruoqiang County, northwest China's Xinjiang Uygur Autonomous Region, Oct. 29, 2019. Ruoqiang County is famous for its red jujubes. The per capita annual income of jujube farmers in this county exceeds 30,000 yuan (about 4,249 U.S. dollars). (Xinhua/Zhao Ge)

A farmer picks red jujubes at an orchard in Ruoqiang County, northwest China's Xinjiang Uygur Autonomous Region, Oct. 29, 2019. Ruoqiang County is famous for its red jujubes. The per capita annual income of jujube farmers in this county exceeds 30,000 yuan (about 4,249 U.S. dollars). (Xinhua/Zhao Ge)

Farmers dry red jujubes in the yard in Ruoqiang County, northwest China's Xinjiang Uygur Autonomous Region, Oct. 29, 2019. Ruoqiang County is famous for its red jujubes. The per capita annual income of jujube farmers in this county exceeds 30,000 yuan (about 4,249 U.S. dollars). (Xinhua/Zhao Ge)

Farmers pick red jujubes at an orchard in Ruoqiang County, northwest China's Xinjiang Uygur Autonomous Region, Oct. 29, 2019. Ruoqiang County is famous for its red jujubes. The per capita annual income of jujube farmers in this county exceeds 30,000 yuan (about 4,249 U.S. dollars). (Xinhua/Zhao Ge)

Photo taken on Oct. 29, 2019 shows red jujubes at an orchard in Ruoqiang County, northwest China's Xinjiang Uygur Autonomous Region. Ruoqiang County is famous for its red jujubes. The per capita annual income of jujube farmers in this county exceeds 30,000 yuan (about 4,249 U.S. dollars). (Xinhua/Zhao Ge)

Chen Xiaoming dries red jujubes in the yard of his house in Ruoqiang County, northwest China's Xinjiang Uygur Autonomous Region, Oct. 29, 2019. Ruoqiang County is famous for its red jujubes. The per capita annual income of jujube farmers in this county exceeds 30,000 yuan (about 4,249 U.S. dollars). (Xinhua/Zhao Ge)