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北京密云水库蓄水量突破19亿立方米

2017-09-13 07:36:22   中国青年网

俯瞰密云水库。陈振海摄/光明图片

本报北京9月12日电(记者张景华) 被称为“燕山明珠”的北京密云水库,9月11日蓄水量突破19亿立方米,创下17年来的新高。12日,记者来到库区,放眼远眺,成群结队的水鸟聚集在水库坝下嬉戏。

密云水库是首都重要的饮用水源地和生态涵养区,去年同期,蓄水量为14.7亿立方米。由于汛期降水丰沛、南水北调回补库区等因素,短短一年时间,蓄水量就多了4.3亿立方米,水域面积增加了6平方公里,相当于多了一个奥林匹克森林公园,7个库中岛被淹没。

作为京城的“大水盆”,密云水库的蓄水量关系着首都的供水安全。2014年年底,南水进京输送至密云水库存蓄,至今年1月,共回补1.14亿立方米。此外,密云区有大小河流63条,其中白河、潮河、清水河等主干河流都汇入密云水库。

为了保持水库水质和环境,密云区先后实施退耕禁种、畜禽禁养、治污治脏、源头治理等措施,组建保水总队,区委书记任政委,区长任总指挥,形成区、镇、村三级保水组织,1200人的保水队伍。随着北京最严格“河长制”的推行,密云已配齐区、镇、村三级河长998名,分级分段管理全区63条河道,确保入库水源安全。

为了确保汇入密云水库的每一条河流都“来路清白”,各乡镇村的党员和村民代表都踊跃加入保河队伍。

“现在水量上来了,老百姓更关心水质。”密云水库管理处水环境监测分中心主任潘轲旻说。原本一年12次的水质监测,改为一周一次。在白河主坝、潮河主坝、恒河等地设立45个取样站点,化验总磷、总氮、酸碱度等43个项目,并将监测数据提交到北京水环境监测中心,与南水北调办公室的数据做比对,一旦发现问题,马上采取应急措施,确保密云水库的饮用水安全。

如今,密云水库的水量大了,环境好了,成千上万只水鸟又回来栖息了。水库管理处相关负责人表示,今年水库全封闭管理,林地总面积超5万亩,整个水库周边都被茂盛的植被覆盖。明年底,近400公里的环库围网将落成,库区环境和水质将得到进一步保障,“绝不能让不合格的水流进密云水库,更不能让不合格的水流进百姓家里”。

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