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【水美乡村建设现场会③】与会人员参观董家村双河堰以水融景示范点

2021-10-14 18:21  

10月14日上午,参加全国水美乡村建设现场会的与会人员来到远安县旧县镇董家村,参观双河堰以水融景示范点。



双河堰位于沮河和鹿苑河交汇处,以活松木桩夹加鹅卵石成堰,凿沿岸红砂岩建渠,是远安后“八大河水”之一。治理前主要存在堰内淤积、水土流失、生态退化等问题。

按照“把节点建成景点、把岸线建成公园”的治理目标,坚持将双河堰打造集防洪、灌溉、发电、旅游、生态于一体的多功能堰坝。在规划设计上,堰体形似飞鸟羽翼振翅沮水、又像顽童放飞巨型纸鸢,以清朝诗人高鼎的《村居》诗意去规划布局。在治理措施上,实施“微设计、微施工、微管理”,岸坡护砌铺设雷诺护垫、卵石护坡1.2公里;生态改造堰体220米,设置鱼类洄游通道,兼作生物廊道,漫水时“七级叠瀑”,枯水时“亲水乐园”;河道疏浚2公里,岸坡覆土种草1.5万平方米,恢复深潭浅滩、泛洪漫滩的自然形态;创新人工塑石与天然卵石结合造型工艺。在管护机制上,实行智慧化管、市场化养、全民化治。实施“5+N”(县、镇、村三级河长、河长单位、河库警长+民间河长等志愿者)全民管护体系,建立“两监控两监测一服务”在线管护平台(工程、河道全程监控,水质、山洪实时监测,优质公共水情服务),以水文化博物馆、水电研学及驿站等营收,购买市场专业化服务,实现“以工程养工程”。

通过系统治理,沮河干流稳定在地表水Ⅱ类水质;中华秋沙鸭、黑鹮等国家珍稀物种栖息数量逐年递增,鸟类由53种增加到165种,消失多年的鳜鱼等野生鱼种重现沮河。

来源:融媒体中心综合报道

责编:王蕊莉

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