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全国100多座城市严重缺水

今年入春以来,我国长江以北大部分地区发生了90年代以来最严重的旱情。有些重旱区无有效降雨时间已持续200多天,旱区内绝大部分小型水库和塘坝已经干涸。全国668座建制市中,约有400多座城市缺水,其中100多座城市严重缺水。
我国水资源总量虽然达到28万亿立方米,居世界第6位,但人均淡水资源量仅有2300立方米,只相当于世界人均的四分之一,被列为世界上最贫水的13个国家之一。

节流、治污、开源,互相影响

有关专家指出,鉴于我国人均水资源量少、社会用水需求量大、水环境污染严重的基本水情和国情,我国水资源可持续开发利用必须建立“节流为先,治污为本,多渠道开源的新战略,并以此指导城市水管理政策、规划和方案的制定。

节流、治污、开源,这三方面措施是互相影响、互相作用的。“节流”是由我国贫水的基本水情决定的,必须放到优先位置。“治污”具有保护水资源,改善水环境,增加供水量的多重效益,是解决城市水问题的根本出路。“多渠道开源”的内涵除了合理适度开发地表水和地下水资源外,还包括雨水利用、海水代用、海水淡化和污水资源再生利用等,而且污水资源的再生利用应当逐步成为“开源”的主要途径。

为了防止水危机的进一步恶化,各省市都在积极采取各项措施。北京市从今年下半年将全面推行定额用水。不仅全市工业企业将全面实行定额用水,部分非工业用水部门如宾馆、饭店、大专院校等也要进行用水定额核定工作,实行定额用水管理,规划市区内所有非农业用水的自备井也将全部纳入管理。同时,北京市还将加大依法管水力度,有关用水设施建设、居民定额用水管理、超计划加价收费等有关法规和规定也将修改和制定,而对群众反映强烈的街头洗车业也将进行清理整顿
在各省市积极采取各项应对措施的同时,一系列水利工程也在加班加点地进行。如万家寨引黄工程就是为了解决山西太原、朔州、大同地区水资源严重缺乏而建设的跨流域大型引水工程,被誉为“山西的生命工程。该工程由总干线、南干线、联接段和北干线组成,共两期。输水线路全长453公里,总引水流量为48立方米/秒,年引水12亿立方米。专家预测,这项工程建成以后,每年将从黄河万家寨水库向太原供水6.4亿立方米,向大同、朔州地区年供水5.6亿立方米,将极大地缓解这一地区的水资源缺乏问题。北京高碑店污水处理厂处理水资源化再利用工程,也将于近期投入使用,届时,它所排放出的处理后的水,每天将为北京市节约5万吨生活饮用水,同时也为工业生产提供25万吨日用水。

The national more than 100 cities seriously lack the water.
Since since now the annual income spring, our country Yangtze River has occurred by the Beijing University partial areas for 100 million ages the most serious drought situation. Some heavy dry areas not effective duration of rainfall has continued 200 days, in the dry area the major part small reservoir and the pond dam already was dry. In the entire park 68 organic cities, approximately some more than 400 cities lack the water, its more than 600 cities seriously lack the water our country water resources total quantity although achieved 28 cubic meters, occupy world 6th, but the average per person fresh water resources quantity only has 2,300 cubic meters, is only equal to the world average per person 1/4, is listed as in the world poorest water dish one of 3 countries .
Reduces expenses, to govern the dirt, to open the source, mutual influence.
The concerned expert pointed out, in view of the fact that our country average per person water resources quantity few, the social water used demand quantity is big, the water environmental pollution serious basic state of the water and the national condition, our country water resources sustainable development use must establish "reduces expenses for first, governs the dirt for this, multi-channel opens the source the new strategy, and to this instructs the city water regulatory policy, the plan and the plan formulation .
Reduces expenses, to govern the dirt, to open the source, these three aspects measure is the mutual influence, the interaction. "The throttle" is by our country poor water basic state of the water decision, must put to first the position. "Governs the dirt" to have the protection water resources, the improvement water environment, increases for the water volume multiple benefit, solves the city water question basic outlet. "Multi-channel opens the source" connotation besides reasonable moderate development surface water and ground water resources, but also includes the rain water use, the sea water substitution, the seawater desalination and the sewage resources regeneration use and so on, moreover the sewage resources regeneration use must gradually become "opens the source" the main way .
In order to prevent the water crisis the further worsening, various provinces and cities all positively are taking each measure. Beijing comprehensively will carry out the fixed quantity water used from the second half of this year. Not only the whole city industrial enterprise comprehensively will implement the fixed quantity water used, the partial non- process water department like guesthouse, the hotel, the universities, colleges and institutes and so on also will have to carry on the water used fixed quantity checking work, the implementation fixed quantity water used management, will plan in the urban district all non- agricultural water used to supply for oneself the well also completely to bring into line with the management. At the same time, Beijing also will enlarge legally manages the water dynamics, the related water used facility construction, the inhabitant fixed quantity water used management, the ultra plan will increase price the charge and so on the related laws and regulations and the stipulation also revises and the formulation, but to the populace reflected the intense street corner will wash Che Yeye to carry on the cleaning up reorganization.
Positively adopts each item while various provinces and cities to be supposed to measure, a series of hydraulic engineering also industriously is carrying on. If ten thousand villages direct the yellow project are for solve the cross basin large-scale diversion works which the Shanxi Taiyuan, the new moon state, the Datong area water resources seriously lacks constructs, by the reputation is "Shanxi's life project. This project by the total skeleton line, south the skeleton line, joins Duan Hebei the skeleton line to be composed, altogether two issues. The water distribution line span 53 kilometers, always pilot the current capacity are 48 cubic meters/seconds, the year direct 1200 million cubic meters. The expert forecast after, this project completes, from the Yellow River ten thousand villages reservoirs to Taiyuan for 6.4 million cubic meters, to Datong, the new moon state area year will supply water every year 560 million cubic meters, enormously will alleviate this local the water resources to lack the question. Beijing Gao Beidian the sewage treatment plant processing water resources uses the project again, also will put into the use to the near future, at the appointed time, after it will discharge the processing water, for the Beijing ten thousand tons lives tap water, simultaneously also will provide 250,000 tons dates water useds every day for the industrial production.