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

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Society

China aiming to tame weather

By WANG QIAN | China Daily | Updated: 2013-09-05 01:19

National plan considered to enhance coordination

Man can conquer nature, so goes an ancient Chinese saying that highlights human power.

In a move appearing to support that saying, China plans to boost its weather intervention through a national plan.

The plan, running from 2013 to 2020, will divide the country into six regions and set up an interprovincial mechanism for weather control, Yao Zhanyu, a senior researcher of the Weather Modification Center under the China Meteorological Administration, told China Daily.

Each region will build infrastructure and a command center for weather intervention, according to Yao.

Programs in northeastern, central and southeastern areas will be used mainly to guarantee the wheat harvest, and the northwestern program will be for environmental protection, Yao said.

He added that the southwestern program will focus on ensuring the operation of agriculture and hydropower, while the northern program will be concerned with guaranteeing water supplies.

China modifies weather mainly to increase rain or snow and prevent damaging weather such as hail, fog and rainstorms. Cloud seeding is the major weather modification activity in China.

According to Yao, the northeastern region — covering Liaoning, Jilin and Heilongjiang provinces and parts of the Inner Mongolia autonomous region — was selected as a pilot area to test the coordination system after the National Development and Reform Commission approved a feasibility report in May 2012.

The report said the project will invest nearly 1.1 billion yuan ($177 million) by 2014 to build a regional weather intervention system in northeastern China, including 12 weather intervention airplanes and ground-based facilities.

Yao said a feasibility report for the northwest started recently and the program is expected to be launched within one year if everything goes well.

The northwestern area, including Gansu province, the Ningxia Hui autonomous region, the Xinjiang Uygur autonomous region and parts of Inner Mongolia, is the main source of the sandstorms in spring and autumn.

To better meet agricultural demand and relieve disasters, China plans to increase annual precipitation by 60 billion metric tons and extend the coverage of artificial hail suppression to more than 540,000 square kilometers by 2020, according to the State Council.

"Cloud seeding to coax rain can relieve agricultural drought, reserve water for lakes, cool down high temperatures and ease pollution," Yao said.

However, as cloud seeding is used on a massive scale, some critics have questioned whether there is an environmental impact as a result of manipulating the weather.

China commonly uses silver iodide, a hazardous substance and a toxic pollutant, for cloud seeding.

The country has used silver iodide to lessen the impact of periodic droughts since 1958.

But Lei Hengchi, a scientist specializing in weather intervention, said little impact would occur because the amount of chemicals in cloud seeding is too small compared with the size of the affected region.

Cloud-seeding aircraft use 200 grams to 300 grams of silver iodide during a flight. A rain-enhancement shell contains only 1 gram of silver iodide, while a rocket contains about 8 to 15 grams.

Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: a毛片网站| 成年男女免费视频网站播放 | 久草福利资源在线观看 | 日韩精品一区二区三区高清 | 色老头一区二区三区在线观看 | 久久久久久久久一次 | 欧美日本在线三级视频 | 亚洲韩国欧美一区二区三区 | 91精品国产高清久久久久久io | 亚洲天堂男人的天堂 | 亚洲国语在线视频手机在线 | 美女视频黄a | 亚洲成人黄色在线观看 | 亚洲一区二区三区国产精品 | 精品久久久日韩精品成人 | 白白在线观看永久免费视频 | 男女性男女刺激大片免费观看 | 日韩欧美中文字幕在线视频 | 成年女人看片免费视频频 | 欧美一级毛片欧美一级无片 | 久久99热只有视精品6国产 | 日本亚欧乱色视频在线网站 | 91久久99热青草国产 | a毛片免费全部播放毛 | 一区精品麻豆经典 | 窝窝午夜看片七次郎青草视频 | 超级碰碰碰视频视频在线视频 | 国产精品久久网 | 亚洲成a人在线观看 | 午夜一级做a爰片久久毛片 午夜伊人网 | 久久精品国产精品青草 | 国产全部理论片线观看 | 国产精品免费一级在线观看 | 秀人网私拍福利视频在线 | 日本特黄特色大片免费看 | 欧美另类专区 | 国产真实搭讪系列 | 一级特黄aa大片欧美网站 | 精品视频自拍 | 91成人免费 | 女女同性一区二区三区四区 |