黄龙溪国考断面水质连续59个月保持在Ⅲ类及以上，成都水生态“变形记”藏着这些密码

Core Viewpoint - The article highlights the significant ecological improvements in the Jinjiang River in Chengdu, emphasizing the successful implementation of pollution control measures and the positive impact on local tourism and economy [2][3][8]. Group 1: Ecological Improvement Measures - The core of the governance strategy for Jinjiang River is pollution interception, focusing on both water and land management to address pollution sources effectively [3][4]. - Chengdu has completed over 7,000 kilometers of municipal drainage network inspections and repairs, installed 23.1 kilometers of interception pipelines, and built 19 sewage treatment plants, increasing daily treatment capacity by 1.735 million tons [3][4]. - The comprehensive approach includes promoting the resource utilization of livestock manure, achieving a 90% utilization rate in Chengdu [4]. Group 2: Water Quality Enhancement - The water quality of the Jinjiang River has improved significantly, with the excellent water quality rate rising from 69% in 2016 to 100%, and the water quality at the Huanglongxi national monitoring section improving from inferior V class to III class and above [4][5]. - Continuous monitoring and management practices have been established, with a focus on identifying pollution sources and ensuring all wastewater is collected and treated [4][5]. Group 3: Infrastructure Development - The construction of Xinglong Lake began in 2013, serving as an artificial ecological reservoir and purifier for the Jinjiang River, enhancing water quality and biodiversity [5][6]. - New wetlands and sewage treatment facilities have been developed in the Lvxik River basin to manage water flow and improve water quality [6]. Group 4: Economic and Tourism Impact - The ecological improvements have led to a surge in local tourism, with Huanglongxi town receiving 217,200 visitors during the Dragon Boat Festival in 2025, a 57% increase year-on-year, and generating tourism revenue of 23.183 million yuan, up 50% [8]. - The enhanced environment has attracted various industries, including healthcare and education, contributing to a vibrant local economy [8].