This aerial photo taken on Nov. 9, 2023 shows Sanhe gate of Hongze Lake in Huai'an, east China's Jiangsu Province. The Hongze Lake Irrigation System in eastern Jiangsu Province is a water storage irrigation area. Since the Eastern Han Dynasty (25-220), ancient people have diverted water for irrigation and farming. The irrigation system, which has been designated as World Heritage Irrigation Structures (WHIS) in 2023, nowadays keeps irrigating farmland. (Xinhua/Ji Chunpeng)
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