Groundwater shrinking in some parts
Groundwater in some parts of China is shrinking, a new research on the subject said.
Researchers used data from satellite gravity surveys, hydrological models and on-the-spot observations to study changes of groundwater storage in three aquifers in China.
They found water table in the North China Plain had declined by 6 to 8 billion tons each year since 2002, due to dry weather and over exploitation for a long period.
Groundwater reserves in northeast China have significant annual fluctuations. In the Liao River Basin, groundwater was depleted rapidly from 2005 to 2009, with an annual loss of about 5 billion tons. Since 2010, however, increased rainfall has allowed reserves to gradually rise again.
Groundwater plays a critical role in the global water cycle. Some cities such as Beijing and Tianjin have limited exploitation to raise their water table.
The researchers come from the Institute of Geodesy and Geophysics under the Chinese Academy of Sciences, Capital Normal University and Ohio State University. Their findings were published in the journal 鈥淩emote Sensing鈥 on April 26.
- About Us
- |
- Terms of Use
- |
-
RSS
- |
- Privacy Policy
- |
- Contact Us
- |
- Shanghai Call Center: 962288
- |
- Tip-off hotline: 52920043
- 娌狪CP璇侊細娌狪CP澶05050403鍙-1
- |
- 浜掕仈缃戞柊闂讳俊鎭湇鍔¤鍙瘉锛31120180004
- |
- 缃戠粶瑙嗗惉璁稿彲璇侊細0909346
- |
- 骞挎挱鐢佃鑺傜洰鍒朵綔璁稿彲璇侊細娌瓧绗354鍙
- |
- 澧炲肩數淇′笟鍔$粡钀ヨ鍙瘉锛氭勃B2-20120012
Copyright 漏 1999- Shanghai Daily. All rights reserved.Preferably viewed with Internet Explorer 8 or newer browsers.