E China's Rongcheng begins to harvest Kelp(1/5)

Workers are busy harvesting kelp at a kelp farm in Rongcheng, east China's Shandong Province, March 22, 2021. Rongcheng is the largest kelp production area in China, with an average annual production accounting for 40 percent of the total. (Photo: China News Service/Li Xinjun)

Workers are busy harvesting kelp at a kelp farm in Rongcheng, east China's Shandong Province, March 22, 2021. Rongcheng is the largest kelp production area in China, with an average annual production accounting for 40 percent of the total. (Photo: China News Service/Li Xinjun)

Workers are busy harvesting kelp at a kelp farm in Rongcheng, east China's Shandong Province, March 22, 2021. Rongcheng is the largest kelp production area in China, with an average annual production accounting for 40 percent of the total. (Photo: China News Service/Li Xinjun)

Workers are busy harvesting kelp at a kelp farm in Rongcheng, east China's Shandong Province, March 22, 2021. Rongcheng is the largest kelp production area in China, with an average annual production accounting for 40 percent of the total. (Photo: China News Service/Li Xinjun)

Workers are busy harvesting kelp at a kelp farm in Rongcheng, east China's Shandong Province, March 22, 2021. Rongcheng is the largest kelp production area in China, with an average annual production accounting for 40 percent of the total. (Photo: China News Service/Li Xinjun)