研究：北京每年下沉多达11厘米_BEC初级作文

研究：北京每年下沉多达11厘米

这项有关北京下沉的研究发表在同行评议期刊《遥感科学》上，基于合成孔径雷达干涉测量技术，这是一种监测陆地高程变化的雷达技术。研究小组有7人。

“We are currently carrying out a detailed analysis of the impacts of subsidence on critical infrastructure (eg high-speed railways) in the Beijing plain,” they said in an email to the Guardian. “Hopefully a paper summarising our findings will come out later this year.”

他们在给《卫报》的一封电邮中写道：“我们目前正在进行一项北京平原地区地表下沉对关键基础设施影响的详细分析（比如高铁）。希望能在今年晚些时候发表一份能概括我们研究结果的论文。”

Beijing sits in a dry plain where groundwater has accumulated over millennia. As wells are drilled and the water table drops, the underlying soil compacts, much like a dried-out sponge.

北京坐落于干燥的平原地区，地下水经过了数千年的累积。随着钻井抽取地下水，地下水位下降，地下的土壤更加紧密，就像干涸的海绵。

The study finds that the entire city is sinking but the subsidence is most pronounced in Beijing’s Chaoyang district, which has boomed since 1990 with skyscrapers, ringroads and other development. The researchers say the uneven nature of the subsidence in some areas poses risks to buildings and other infrastructure.