Core Insights - The water quality of the Yangtze River has significantly improved over the past decade, with a notable decrease in total phosphorus concentration as evidenced by satellite imagery from 2015 and 2023 [1][4] - The Yangtze River Economic Belt has seen the relocation and transformation of nearly 10,000 chemical enterprises, contributing to a reduction in pollution sources [4] - A comprehensive monitoring system utilizing drones, unmanned boats, and satellite remote sensing has been established to ensure effective pollution control along the river [6][9] Group 1 - The Yangtze River basin has conducted extensive inspections of 140,000 kilometers of river and lake shorelines, identifying over 180,000 pollution discharge outlets with a remediation completion rate of approximately 90% [4] - In Jiujiang, a dynamic monitoring system has been implemented, allowing for real-time tracking of 1,468 pollution discharge outlets [9][11] - The integration of advanced technologies has improved pollution source tracing accuracy from kilometer-level to meter-level, enhancing response times from 24 hours to just 4 hours [11][13] Group 2 - The ecological environment of the Yangtze River has seen a resurgence, with 344 native fish species monitored from 2021 to 2024, an increase of 36 species compared to the period before fishing bans [15] - The resource quantity of key fish species in the middle reaches of the Yangtze River has increased to 6.2 times that of 2020, indicating a significant recovery of aquatic life [15]