Tourists visit the Xuanwu Lake scenic spot in Nanjing, capital of east China's Jiangsu Province, March 19, 2022. (Photo by Su Yang/Xinhua)

　　Tourists ride powered parachutes over blooming cole flowers in Wuyi County of Jinhua City, east China's Zhejiang Province, March 19, 2022. (Photo by Zhang Jiancheng/Xinhua)

　　Tourists view blooming cole flowers on a train in Shadaogou Town, Xuan'en County, central China's Hubei Province, March 19, 2022. (Photo by Song Wen/Xinhua)

　　Aerial photo taken on March 19, 2022 shows people enjoying spring scenery in Peng'an County of Nanchong City, southwest China's Sichuan Province. (Photo by Liu Yonghong/Xinhua)

　　Photo taken on March 20, 2022 shows a view at the Longwangtan park in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Chogo)

　　A woman takes a selfie with blooming flowers at the Longwangtan park in Lhasa, southwest China's Tibet Autonomous Region, March 20, 2022. (Xinhua/Chogo)

　　People take boats at the Longwangtan park in Lhasa, southwest China's Tibet Autonomous Region, March 20, 2022. (Xinhua/Chogo)

　　Photo taken with a mobile phone shows the Potala Palace seen from the Nanshan Park in Lhasa, capital of southwest China's Tibet Autonomous Region on March 19, 2022. (Xinhua/Jiang Fan)

　　Photo taken on March 20, 2022 shows a budding willow at the Potala Palace square in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Chogo)

　　A visitor takes selfies under blooming cherry trees in Xixiu District of Anshun, southwest China's Guizhou Province, on the date of Chunfen, which falls on March 20, 2022. Chunfen, or spring equinox, is one of the 24 solar terms on the Chinese lunar calendar that reflect changes in the seasons. (Xinhua/Tao Liang)

　　(220320) -- TENGZHOU, March 20, 2022 (Xinhua) -- A child flies a kite in Tengzhou, east China's Shandong Province, on the date of Chunfen, which falls on March 20, 2022. Chunfen, or spring equinox, is one of the 24 solar terms on the Chinese lunar calendar that reflect changes in the seasons. (Photo by Li Zhijun/Xinhua)

　　(220320) -- QIANDONGNAN, March 20, 2022 (Xinhua) -- Aerial photo shows a child flying a kite in the cole flower field in Jianhe County of Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province, on the date of Chunfen, which falls on March 20, 2022. Chunfen, or spring equinox, is one of the 24 solar terms on the Chinese lunar calendar that reflect changes in the seasons. (Photo by Fang Peng/Xinhua)

　　(220320) -- MEISHAN, March 20, 2022 (Xinhua) -- Children play under blooming cherry trees in Renshou County of Meishan, southwest China's Sichuan Province, on the date of Chunfen, which falls on March 20, 2022. Chunfen, or spring equinox, is one of the 24 solar terms on the Chinese lunar calendar that reflect changes in the seasons. (Photo by Pan Jianyong/Xinhua)

　　A visitor poses for photos under blooming cherry trees in Xixiu District of Anshun, southwest China's Guizhou Province, on the date of Chunfen, which falls on March 20, 2022. Chunfen, or spring equinox, is one of the 24 solar terms on the Chinese lunar calendar that reflect changes in the seasons. (Xinhua/Tao Liang)