It's a combination boost of changes in ocean circulation, land ice dynamic and land subsidence caused by human activity.

这是人类活动引起的海洋环流、陆冰动力和地面沉降变化的综合结果。

Some places are even combating subsidence by injecting water into depleted aquifers in a process called managed recharge.

一些地方甚至通过向枯竭的含水层注水来防治沉降，这被称为“管理补给”。

In Japan, groundwater management over the years has proved successful at stabilizing subsidence in Tokyo and Osaka.

在日本，多年来的地下水管理已证明成功地稳定了东京和大阪的沉降。

On top of that, land subsidence had made matters worse.

最重要的是，地面下沉使事情变得更糟。

Land subsidence has been aggravated by over-pumping of underground water and the construction of thousands of high-rise buildings.

过度抽取地下水和建造数以千计的高层建筑加剧了地面沉降。

As we know, the foundation beneath the building is quite deep, ranging from 20-30 meters, its subsidence rate is much lower than the ground.

我们知道，楼房底部的地基比较深，有20或30米，楼房的下沉速度比地面慢很多。

The researchers also combined their subsidence measurements with projections of sea level rise to figure out which cities might end up below sea level.

研究人员还将沉降测量结果与海平面上升预测相结合，以确定哪些城市最终可能低于海平面。

So, naturally, their first calendar was divided up into three seasons, each based on the river ’s changes: inundation, subsidence and harvest.

因此，很自然地，他们的第一个日历被分为三个季节，每个季节都基于河流的变化：洪水、沉降和收获。

This has decreased ten fold and a new analysis based on Japanese satellite observations of ground subsidence suggest a further ten fold decrease can by expected by 2017.

目前污泥渗出量已经减少了10倍，根据日本地表下沉卫星监控进行的分析，预期在2017年污泥渗出量将再减少10倍。

" Land subsidence is an overlooked problem that almost exists everywhere, " said Manoochehr Shirzaei, a geophysicist at Virginia Tech who has studied subsidence in American coastal cities using similar methods.

“地面沉降是一个被忽视的问题，几乎在任何地方都存在，”弗吉尼亚理工大学的地球物理学家马努切赫尔·希尔扎伊说，他用类似的方法研究了美国沿海城市的沉降。