Guarding the purity of the Erhai Lake and supporting its prosperity Gusheng Village,located in Dali, Yunnan, China, is nestled by the Erhai Lake, winding for several miles from south to north. This traditional village of the Bai people has a history of over 2000 years. In2022, Academician Zhang Fushuo led a team from the Science and Technology Backyard to Gusheng Village to control non-point source pollution, promote green ecological planting models, cultivate green high-value crops, provide skill training for farmers, and assist in their homestay and agricultural tourism transformation... The Science and Technology.Backyard not only brought scientific solutions for the protection and governance of the Erhai Lake but also revitalized this ancient village.