Comprehensive agricultural development, water resources protection, etc. According to the agreement of Yiyuan Tianhu Agriculture, Culture and Tourism Complex Project, the comprehensive project includes comprehensive agricultural development, water area protection, ecological restoration, tourism facilities construction, scenic spot development, old-age care, cultural tourism and leisure, scenic spot management services, etc. It is an all-round comprehensive agricultural, cultural and tourism complex, which drives the county's integrated development of agriculture, culture and tourism to achieve a big breakthrough and leap. Yiyuan Tianhu Tourist Resort is located in Tianzhuang Reservoir in the southwest of Yiyuan County, with a total investment of 3.7 billion yuan and a planned total area of 22.45 square kilometers.