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市属公园年均留下雨水400万立方米

2017-09-05 18:56:43   中国青年网

本报讯(记者左颖)通过规划绿地缓坡、铺装渗水砖嵌草砖、增加下凹式绿地等措施,11家市属公园正在变身成为城市中的一块块海绵,年均雨洪利用总量可达400万立方米。

北京植物园在樱桃沟下游通过水系治理,利用河滩地在原有的水库、河道、小型人工湖基础上进行蓄水工程建设,修建出多个人工湖,并在沿岸种植了碧桃等绿植,既美观又能蓄积樱桃沟和碧云寺等沟谷汇集的雨水。颐和园今年修葺了年久失修的排水道,台阶两侧及陡坡处安置了山石,用来缓冲水流与分流。市公园管理中心介绍,近5年来市属公园共升级改造绿地近113万平方米,绿地中道路与疏散广场透水铺装率已达100%,雨洪利用量已达到近2000万立方米。J170

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