首启冬输！老灌渠变身“生态动脉”

Core Viewpoint - The Chaohe Main Canal has successfully initiated winter water supply for the first time since its establishment in 1958, marking a significant transformation from an agricultural irrigation channel to an ecological channel [1]. Group 1: Project Overview - The Chaohe Main Canal, approximately 11.42 kilometers long, starts at the He'nanzhai section in Miyun District and ends at the Tangzhishan Reservoir in Shunyi District [2]. - Initially built to support agricultural irrigation in Miyun and Shunyi, the canal ceased water supply in 2001 due to decreased irrigation demand and increased urban water usage [2]. - The canal was reactivated in 2021 for ecological replenishment, with a target of nearly 130 million cubic meters of cumulative water supply by December 31, 2025, including over 40 million cubic meters in 2025 alone [2]. Group 2: Ecological Impact - The transformation into an ecological channel has enhanced the connectivity of regional water systems, revitalizing the Tangzhishan Reservoir and improving the ecological environment of the Puyihe River in Pinggu District [3]. - Winter water supply promotes biodiversity recovery, with 22 fish species and over 30 bird species now recorded in the area, alongside the return of mammals and protected plants [3]. - The winter water supply breaks seasonal limitations, achieving year-round ecological replenishment and contributing to sustainable regional ecological development [3].