Study says Beijing caused by excessive pumping of underground water to sink Beijing, 11 cm/year | | | groundwater _ sinking news

Reference news June 25 British media said the Chinese capital is one of the main environmental threats is underground: Beijing is sinking.

According to the United Kingdom Web site on June 24, the Guardian article, according to a new study of the use of satellite images shows that excessive pumping of underground water is causing the city to sink. Satellite images show that Beijing-especially in parts of the central business district--is sinking up to 11 cm/year.

The study's authors warned that continued sinking posed a security threat to Beijing, forecasting is one of the "have a huge impact on train".

This sinking Beijing's research has been published in the journal remote sensing. Article is written by a team of seven researchers, three researchers explained to the guardian, the study found.

In a letter to the guardian, they wrote in an e-mail: "we are now sinking in Beijing plain area critical infrastructure (such as high-speed trains) detailed analysis of the impact. Hope will be published later in the year a dissertation summarizes our findings. ”

Beijing lies in an arid plain, where water has accumulated thousands of years. Because of drilling and groundwater level decline, lower soil becomes compacted, like a dry sponge.

The study found that the city is sinking, sinking, Chaoyang District, Beijing most significantly. Since 1990, booming, Chaoyang District. Researchers said the uneven sinking in some areas of buildings and other infrastructure at risk.

Reports said it is believed that tens of thousands of wells in and around Beijing, many of them for agricultural and afforestation. According to a leading Chinese environmentalist said the placement of wells with regulatory powers of the State, but inconsistency exists in the use of this power.

Beijing public environment research center, Ma said, there are some rules, but the implementation is uncertain. Ma said that he sinks relatively serious, Chaoyang District, was not surprising, because in recent decades, Chaoyang District, has developed rapidly.

Reported that in 2015, China has embarked on an ambitious project aimed at easing Beijing's water crisis. Completed the construction of the project.

Experts say, want to know if the Canal's water supply will help recharge the aquifer, and too early to slow sinking speed in Beijing. Meanwhile, there are still concerns about the impact of buildings and railway systems. In order to avoid derailment in 2015, a research proposal, China has built high-speed railway lines digging new wells in the vicinity.

Reports that other cities in the world are experiencing due to excessive extraction of water resources and other factors have contributed to the sinking. Mexico City is sinking up to 28 centimeters a year, Jakarta is sinking at a similar rate. According to researchers in the journal remote sensing that Bangkok is sinking 12 cm a year, and speed similar to Beijing. (Compile/Yin Xia)

Source: references

Responsible editor: Kun Qu SN117

Article keywords:
Beijing sinking groundwater

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研究称过度抽取地下水致北京下沉 每年11厘米|北京|下沉|地下水_新闻资讯

　　参考消息网6月25日报道 英媒称，中国首都主要的环境威胁之一在于地下：北京正在下沉。

　　据英国《卫报》网站6月24日文章，据一项利用卫星图像的新研究显示，过度抽取地下水正在引发该市下沉。卫星图像显示，北京的部分地区——尤其是其商务中心区——正在每年下沉多达11厘米。

　　这项研究的作者警告称，持续的下沉对北京构成安全威胁，预测之一是“会对列车运行产生巨大影响”。

　　这项有关北京下沉的研究已经发表在《遥感》杂志上。文章是一支由七名研究人员组成的小组撰写的，其中三名研究人员向《卫报》解释了他们的研究发现。

　　他们在致《卫报》的一封电子邮件中写道：“我们目前正在就下沉对北京平原地区重要的基础设施（比如高铁）的影响进行详细的分析。希望将在今年晚些时候发表一篇总结我们的研究发现的论文。”

　　北京位于一个干旱的平原，在这里，地下水积累了千年。由于钻井且地下水位下降，下层土壤变得密实，就像干涸的海绵。

　　这项研究发现，整个城市正在下沉，但北京的朝阳区下沉情况最显著。自1990年以来，朝阳区蓬勃发展。研究人员们称，在一些地区下沉的不均对建筑物以及其他基础设施构成危险。

　　报道称，人们认为在北京及其周边有数以万计口水井，其中很多用于农业和绿化。据一名主要的中国环保人士称，国家对水井的安置拥有监管权力，但在使用这项权力时存在不一致性。

　　北京公众环境研究中心主任马军称，有一些规则，但执行情况是不确定的。马军说，他对朝阳区的下沉情况相对严重并不意外，因为朝阳区在最近数十年来发展迅速。

　　报道称，在2015年，中国开始了一项宏大的工程项目，旨在缓解北京的水危机。国家完成了南水北调工程的建设。

　　专家们称，想知道运河的供水是否将有助于补注含水层，并减缓北京下沉的速度还为时尚早。与此同时，仍然存在对建筑物和铁路系统造成的影响的担忧。为了避免脱轨，2015年的一项研究建议，中国禁止在已经建成的高铁铁路线附近挖掘新的水井。

　　报道称，世界上其他城市正在经历因过度抽取水资源或其他因素导致的下沉。墨西哥城每年正在下沉多达28厘米，雅加达正在以相似的速度下沉。据《遥感》杂志的研究人员们称，曼谷正在每年下沉12厘米，与北京的速度相似。（编译/殷夏）

　　来源：参考消息

责任编辑：瞿崑 SN117

文章关键词：
北京 下沉 地下水

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