Kelp harvested in Rongcheng, China's Shandong

An aerial drone photo taken on July 3, 2024 shows boats loaded with newly harvested kelp heading for the dock in Lidao Township of Rongcheng City, east China's Shandong Province. Nearly 90 percent of the 150,000 mu (about 10,000 hectares) of kelp in Rongcheng City have been harvested so far. The annual output is expected to reach 1.7 million tonnes. (Photo by Li Xinjun/Xinhua)

An aerial drone photo taken on July 3, 2024 shows workers harvesting kelp in Lidao Township of Rongcheng City, east China's Shandong Province. Nearly 90 percent of the 150,000 mu (about 10,000 hectares) of kelp in Rongcheng City have been harvested so far. The annual output is expected to reach 1.7 million tonnes. (Xinhua/Zhu Zheng)

A worker harvests kelp in Lidao Township of Rongcheng City, east China's Shandong Province on July 3, 2024. Nearly 90 percent of the 150,000 mu (about 10,000 hectares) of kelp in Rongcheng City have been harvested so far. The annual output is expected to reach 1.7 million tonnes. (Photo by Li Xinjun/Xinhua)

An aerial drone photo taken on July 3, 2024 shows boats loaded with newly harvested kelp heading for the dock in Lidao Township of Rongcheng City, east China's Shandong Province. Nearly 90 percent of the 150,000 mu (about 10,000 hectares) of kelp in Rongcheng City have been harvested so far. The annual output is expected to reach 1.7 million tonnes. (Xinhua/Zhu Zheng)

A worker harvests kelp in Lidao Township of Rongcheng City, east China's Shandong Province on July 3, 2024. Nearly 90 percent of the 150,000 mu (about 10,000 hectares) of kelp in Rongcheng City have been harvested so far. The annual output is expected to reach 1.7 million tonnes. (Xinhua/Zhu Zheng)

An aerial drone photo taken on July 3, 2024 shows boats loaded with newly harvested kelp heading for the dock in Lidao Township of Rongcheng City, east China's Shandong Province. Nearly 90 percent of the 150,000 mu (about 10,000 hectares) of kelp in Rongcheng City have been harvested so far. The annual output is expected to reach 1.7 million tonnes. (Xinhua/Zhu Zheng)

An aerial drone photo taken on July 3, 2024 shows boats loaded with newly harvested kelp heading for the dock in Lidao Township of Rongcheng City, east China's Shandong Province. Nearly 90 percent of the 150,000 mu (about 10,000 hectares) of kelp in Rongcheng City have been harvested so far. The annual output is expected to reach 1.7 million tonnes. (Xinhua/Zhu Zheng)