www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

   

Half of China's shallow groundwater contaminated
(Xinhua)
Updated: 2006-10-08 14:11

Half the shallow groundwater in China has been contaminated, said a senior official with the China Geological Survey(CGS) on Sunday.

Yin Yueping, director of the CGS Hydrogeology and Environmental Geology Department, said the country's groundwater resources have been exploited so irrationally that environmental damage is visible in many areas of the country.

The damage includes ground settling and depression, salt water intrusion and desertification.

Yin said China's groundwater management model is inadequate, with a poor automated supervision system and outdated contamination recovery methods.

"China's groundwater management has lagged behind the world for around two decades," he said.

Groundwater has enormous potential in China. Official figures show that 884 billion cubic meters of natural groundwater are replenished each year, with 353 billion cubic meters available for use.

In addition, there are 260 billion cubic meters of shallow groundwater available.

Yin said the 34th Congress of International Association of Hydrogeologists (IAH), will be held in Beijing from Monday to Friday to discuss topics such as groundwater quality, groundwater safety and contamination recovery, and the management of groundwater in the context of rural and urban development.

 
 

主站蜘蛛池模板: 免费人成黄页在线观看视频国产 | 欧美久在线观看在线观看 | 国产成人a大片大片在线播放 | 国产成人精品免费久久久久 | 大香伊蕉国产短视频69 | 日韩免费在线视频 | 成人软件18免费 | 国产精自产拍久久久久久 | 久久亚洲国产高清 | 青青自拍| 国产成人久久精品二区三区牛 | 成人欧美一区二区三区在线 | 一级毛片q片 | 一级片在线播放 | 国产在线更新 | 国产成人在线免费观看 | 精品欧美日韩一区二区 | 国产高清精品在线 | a三级黄色片 | 欧美三级在线看 | 亚州视频一区二区 | 国产高清精品自在线看 | 亚洲精品字幕一区二区三区 | avwww在线| 日韩在线1 | 最新国产美女一区二区三区 | 99精品一区二区三区 | 97久久曰曰久久久 | 性欧美f| 美女黄视频免费观看 | 欧美日韩一级黄色片 | 国产日韩在线观看视频 | 操碰91| 日韩一区二区三区在线观看 | 国产97公开成人免费视频 | 日本美女福利视频 | 亚洲在线中文 | 在线观看日韩www视频免费 | 日韩一级片免费看 | 国产乱子伦在线观看不卡 | 美女视频一区二区三区在线 |