总投资575亿元 四川引大济岷工程建设启动

Core Insights - The Yinda Jimin Project is a significant water diversion initiative in Sichuan, marking the largest investment and longest route in the province's water conservancy history, officially commencing construction on November 7 [1][2] - The project aims to enhance water resource management, ecological restoration, and economic empowerment, creating a dual water source network with the Dujiangyan water supply system [2] Summary by Sections Project Overview - The Yinda Jimin Project starts from the Luding Hydropower Station reservoir and spans 261 kilometers, with a total mainline of 133 kilometers, a southern branch of 103 kilometers, and a northern branch of 25 kilometers, featuring over 58% of its length as tunnels [1] - The project is designed to divert 1.523 billion cubic meters of water annually, with a maximum flow rate of 80 cubic meters per second, benefiting 34.13 million people across 8 cities and 43 counties [1] Economic and Ecological Impact - Upon completion, the project will increase irrigation areas by 1.79 million acres and improve irrigation for an additional 5.91 million acres, reinforcing the irrigation network for Sichuan's agricultural sector [2] - The project will alleviate water shortages in the affected regions, supporting key industries such as electronics and equipment manufacturing, and is expected to contribute an average annual GDP growth of 1.2 percentage points in the region [2]