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环保部环境规划院:环境问题是雄安发展最大挑战
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Topic: 环保部环境规划院:环境问题是雄安发展最大挑战 (Read 145 times)
Antnaone
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环保部环境规划院:环境问题是雄安发展最大挑战
April 23, 2017, 02:58:20 PM
#1
水城共融犹如江南水乡,河水穿城流淌,森林公园空气清新舒畅,被绿树隔离带包围的白洋淀碧波荡漾……未来雄安新区美丽如画的模样令人神往。
不过,在环保部环境规划院副院长兼总工王金南看来,雄安位于京津冀区域内,环境问题不能独善其身。
王金南在4月23日举行的第六期钱学森论坛上直言,京津冀区域是全国大气污染、水污染最严重地区,是全国水资源最为短缺、地下水漏斗最大的地区,是全国资源环境生态与发展矛盾最为尖锐的地区,这些问题是当前及未来雄安新区发展面临的最大挑战。
数据显示,白洋淀流域1965-2012年平均降水量523.4毫米,比1956-1964年的均值减少了22%,流域径流量相应减少50%,入淀水量相应减少69%。与此同时,白洋淀上游修建了大批大中小型水库,总库容36.19亿立方米。
“在流域天然降水减少和开发利用强度激增的双重胁迫下,流域内水资源短缺情势更为严重,从1998年至今白洋淀水位几乎年年逼近干淀警戒水位。”王金南说,“为维持白洋淀水生态功能开始跨流域调水补给,依靠 引黄济淀 工程,白洋淀从此进入频繁补水的低水量维持基本生态功能阶段。”
按照新区建设新增城镇人口100万人,人均用水量264立方米/年测算,新区建设将带来2.64亿立方米/年的水资源供给压力,将使全保定市的年用水总量又增加8%,供水缺口将超过5亿立方米/年。
王金南指出,白洋淀流域不仅水资源严重短缺,而且入淀河流的水污染非常严重。据测算,该区域内COD和氨氮现状入河量已超过水环境容量,分别超出9%和46%。白洋淀COD、总磷、氨氮等为主要污染物质,入淀河流输入和淀区内污染严重是主要原因。
此外,雄安新区大气环境质量形势也很严峻。监测数据显示,新区所在的安新县和雄县两县PM2.5和PM10浓度水平都与保定市区相当。保定市作为我国大气环境污染最严重的城市之一,PM2.5和PM10年均浓度严重超标,2015年浓度分别是标准限值的3.1倍和2.5倍。同时,新区周边的衡水、石家庄、廊坊、沧州以及北京、天津等也相互影响,大气环境问题十分突出。
Fuwktu
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Re: 环保部环境规划院:环境问题是雄安发展最大挑战
April 23, 2017, 02:58:58 PM
#2
环境确实是一个重要的问题
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