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北京将打开5条通风廊道 向城市送风吹雾霾

2016-02-20 21:08:06    央视

记者发现,目前确定的5条一级廊道长度都很长,但主要以纵向为主,少了一些横向的大通道。至于少了横向通风廊道的原因,领域内的专家说,因为北京冬天主要刮西北风、夏天刮东南风,因此纵向、顺着风向斜着的风道将会最有效地解决雾霾集中的问题,“吹起来最有劲儿”。

王飞说,除了纵向的一级廊道以外,本市还将有十余条80米宽的二级廊道。记者还了解到,未来还有可能建设三级通风廊道,并且由此形成整个通风“网”。

如果要成“网”,这些划入通风廊道的区域就会被严格控制建设规模。集中建设的“大高楼”几乎不会再出现于通风廊道区域,同时,未来如果有了条件,还将打通阻碍廊道连通的关键节点。

上万平方公里纳入生态红线区

王飞说,目前,北京已经初步划定生态红线区面积,总面积在1.1万平方公里以上,约占全市市域范围的70%以上。红线区内有重要生态价值山区、森 林、河流湖泊、基本农田和自然保护区、风景名胜区、水源保护区、重点公益林等等,这1万多平方公里内将严格禁止建设与生态保护无关的建设活动。

同时,本市将对山区进行整体保育和生态修复,平原区重点是增加绿地总量,优化布局,重点是加快以廊道为主的生态网络建设。同时,将生态红线区内村庄建设成为环境优美、配套方便、与自然和谐相融的美丽乡村和城市“后花园”。

生态红线区和集中建设区以外区域为限制建设区。限制建设区主要由集体建设用地、少量分散城镇建设用地和非建设用地组成。王飞说,限制建设区是有效治理“大城市病”,实现人口疏解、用地减量、功能优化、城乡统筹和生态环境改善的重点地区。

记者获悉,限制建设区要实现“减地增绿”,城中村和农村的集体建设用地将减量腾退,尤其是在生态廊道上集体产业用地减量将被优先推动,并将实施绿色空间逐步划入生态红线区。

责任编辑:苏未然 SN226

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