Group 1 - The "Iton River Comprehensive Governance" project in Changchun has transformed the river from a polluted state to an ecological haven, enhancing the quality of life for residents [1][2] - The project has achieved significant results, including the completion of 124 river inlet governance projects and the construction of 120 kilometers of new sewage pipelines, effectively controlling internal pollution [2] - The establishment of ecological projects such as artificial wetlands has further improved the river's ecological environment, attracting various bird species [2] Group 2 - The revitalization of the Iton River has led to the emergence of new cultural and tourism landmarks, such as the Chengtou Nanxi Li Cultural and Tourism Town, which attracts nearly 10,000 visitors on weekends and has an annual reception of 3 million visitors [2] - Infrastructure improvements, including the completion of 10 parks and 11 bridge renovations along the river, have integrated cultural elements and enhanced the scenic beauty of the area [2] - The local power supply company has implemented safety measures to protect electrical facilities along the river, ensuring the smooth operation of cultural events and enhancing visitor experience [3]