From January 11 to 13, 2024, we will follow the Yellow River Basin Bureau to middling coal Shaanxi Yulin Daze Coal Industry Co., Ltd., Shenmu High tech Industrial Development Zone (Jinjie Industrial Park, Shenmu City), Yulin Chemical, Wanyuan Sewage Treatment Plant, Yulin Hongshixia Reservoir, Northern Shaanxi (Jingbian) Air Water Resources Utilization Demonstration Base, Jingbian Dongkeng and other places to investigate and learn about underground drainage, industrial wastewater and solid waste treatment, groundwater overdraft treatment and agricultural non-point source pollution, and have in-depth and extensive exchanges with local ecological and environmental protection departments and business leaders. Participants in the research work include Huang Wenhai, Assistant Director of the Yellow River Ecological Environment Science Research Institute of the Yellow River Basin Bureau, Chen Yongqing, First level Inspector of the Original Soil and Soil Department of the Ministry of Ecology and Environment, and Yang Rongzhen, Chief Engineer of our association.