亚洲精品无播放在线播放,精品国精品自拍自在线,免费国产污网站在线观看不要卡,97色欧美视频在线观看,久久精品本无码一本,国产精品高清视亚洲一区二区,全部无码特级毛片免费播放

Home / Environment / Report Review Tools: Save | Print | E-mail | Most Read | Comment
Climate risk for Yangtze river: report
Adjust font size:

Climate change and major water conservation projects are a major risk to the long-term "health" of the Yangtze River, claimed a report released at the weekend.

The Yangtze Conservation and Development Report 2009, compiled by the China Academy of Science (CAS), states the basin of China's longest waterway has been hit by a yearly reduction in rain since 2006, brought on by global warming.

A ceremony is held in Beijing on April 18, 2009 to announce the Yangtze Conservation and Development Report 2009, compiled by the China Academy of Science, is published.

A ceremony is held in Beijing on April 18, 2009 to announce the Yangtze Conservation and Development Report 2009, compiled by the China Academy of Science, is published.


Annual rainfall dropped 10.3 and 6.9 percent respectively in 2006 and 2007, the report said, while severe droughts in 2007 and last year resulted in the shrinking of two of the nation's biggest freshwater lakes, Poyang and Dongting.

The research also estimated that by 2030 the glacial area at the source of the Yangtze River will be reduced by 6.9 percent from the level recorded in 1970.

"Long-tem observation and multi-disciplinary studies on possible impacts are needed to better understand what climate change will do to the river," said Yang Guishan, a CAS researcher and an author of the report.

The massive Three Gorges Dam Project is also damaging the overall water quality, ecosystems of the wetlands and fish stocks, said the report.

The research showed that with a hike in the concentration of nitrogen and phosphorus, the water quality in reservoir areas of the Three Gorges Dam has deteriorated since it began water storing in 2003.

An increase in outbreaks of algae caused by excessive nutrients in the water has also been found in the reservoirs, said the report, while the Three Gorges Dam and other conservation projects are disrupting migration routes for fish and changing the ecology of the fish spawning sites in the Yangtze River.

The report found a steady fall in the number of black carp, grass carp, silver carp and crucian carp since 2003.

1   2    


Tools: Save | Print | E-mail | Most Read Bookmark and Share
Comment
Pet Name
Anonymous

China Archives
Related >>
- Three Gorges reservoir sees 166 geo-disasters since last Sep.
- Three-month fishing ban starts in Yangtze River
- Environmental cooperation urged
NGO Events Calendar Tips
- The Eco Design Fair 2009
- Environmental English Training (EET) class
- Hand in hand to protect endangered animals and plants
- Changchun, Mini-marathon Aimed at Protecting Siberian Tiger
- Water Walk by Nature University
More
Archives
Sichuan Earthquake

An earthquake measuring 7.8 on the Richter scale jolted Sichuan Province at 2:28 PM on May 12.

Panda Facts
A record 28 panda cubs born via artificial insemination have survived in 2006.
South China Karst
Rich and unique karst landforms located in south China display exceptional natural beauty.
Saving the Tibetan Antelopes
The rare animals survive in the harsh natural environment of the Qinghai-Tibet Plateau.
More
Laws & Regulations
- Forestry Law of the People's Republic of China
- Meteorology Law of the People's Republic of China
- Fire Control Law of the People's Republic of China
- Law on Protecting Against and Mitigating Earthquake Disasters
- Law of the People's Republic of China on Conserving Energy
More
Links:
State Environmental Protection Administration
Ministry of Water Resources
Ministry of Land and Resources
China Environmental Industry Network
Chengdu Giant Panda Research Base
  • <th id="fomfv"></th><noscript id="fomfv"></noscript>

    <fieldset id="fomfv"><font id="fomfv"></font></fieldset><sup id="fomfv"><menuitem id="fomfv"></menuitem></sup>

    1. <dfn id="fomfv"></dfn>
        1. 亚洲精品无播放在线播放,精品国精品自拍自在线,免费国产污网站在线观看不要卡,97色欧美视频在线观看,久久精品本无码一本,国产精品高清视亚洲一区二区,全部无码特级毛片免费播放 毛片无码免费无码播放 国产精品美女乱子伦高潮 久久男人av资源网站无码 亚洲精品中文字幕AV一本 国产成年无码V片在线 特级毛片直接看不用下载 亚洲深夜无码视频