四川引大济岷工程建设启动|女人与拘做爰全过女

1. 男性23厘米尺寸图片

  11月7日,引大济岷工程建设动员大会在雅安市天全县召开。作为四川水利史上投资最大、线路最长、受益最广的跨流域引调水工程和四川“六横六纵”水网主骨架的重要“一横”,这项纳入《国家水网建设规划纲要》《成渝地区双城经济圈建设规划纲要》的国家“两重”项目标志性重大水利工程正式启动建设,将为成都平原经济区破解“水瓶颈”、注入“水动能”,对打造新时代更高水平“天府粮仓”、支撑成渝地区双城经济圈高质量发展具有重大战略意义。

  引大济岷工程以大渡河泸定水电站库区为起点,蜿蜒穿越至成都平原,构建起“一总两干”的输水格局——总干线133千米,南干线103千米,北干线25千米,工程输水线路总长261千米,其中隧洞占比超58%(151千米),堪称“地下输水长城”。工程设计年引水量15.23亿立方米,取水口设计引水流量80立方米/秒,覆盖成都、德阳、绵阳、遂宁、内江、雅安、眉山、资阳共8市43县(市、区),受益人口3413万人,供水范围与成都平原经济区高度契合。工程总投资575亿元,建设总工期96个月,建成后将成为四川水网主骨干大动脉的核心组成。

  引大济岷工程并非简单的“输水工程”,而是集民生保障、生态修复、经济赋能于一体的战略载体,其效益将完善四川水资源格局。工程建成后,将与都江堰供水工程形成双水源水网体系,结束成都平原“单水源依赖”历史,新增灌溉面积179万亩、改善灌溉面积591万亩,为“天府粮仓”筑牢灌溉保障网。(记者 何浠)

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发布于:北京市