久久精品30_一本色道久久精品_激情综合视频_欧美日韩一区二区高清_好看的av在线不卡观看_国产自产精品_91久久黄色_午夜亚洲福利_欧美黄在线观看_国内自拍一区

Home / English Column / Environment Tools: Save | Print | E-mail | Most Read
First 'Sandstorm Almanac' to Make Its Debut
Adjust font size:
China's first Sandstorm Almanac' will be published next year, offering an authoritative account of the sandstorms which have taken place in China during 2002.

The newly-established National Committee of Sandstorm Experts is composed of 25 people, coming from the Chinese Academy of Sciences, the State Meteorological Center, the Chinese Academy of Forestry, the Chinese Academy of Agricultural Sciences, Lanzhou University and other scientific institutes from relevant provinces. The 25 experts bear the responsibility of summarizing of year's dusty conditions, evaluating the quality of forecast services, examining and approving the Sandstorm Almanac,' summarizing the implementation of joint strategies to cope with dust clouds and sandstorms, and deciding on measures related to scientific and technological developments concerned with sandstorms.

According to the experts, China's northern areas have been hit by 12 dust clouds during this year's March to May period. Of them, 11 were so severe as to constitute sandstorms. The frequency of dust clouds in 2002 declined when compared with previous years (15 times in 2000, and 18 times in 2001). However, the intensity of dust activity hasn't weakened. Of this year's 11 sandstorms, four reached extreme' levels, while only two in 2001 and three in 2000 reached such intensity. The number of extreme sandstorms to occur in 2002 is the highest in recent history.

Individual dust clouds are also lasting for longer periods - generally two to three days with the longest lasting for more than four. In 2002, ten provinces have been affected by sandstorms, while 18 provinces were hit by high levels of dust particles and dust clouds. The total number of people affected by dusty conditions rose to 490 million for 2002.

Expert analysis indicates that three consecutive years of drought in north China, particularly in Inner Mongolia, is an important factor behind the increasing intensity of sandstorms this year. Additionally, less vegetation cover and a warmer winter in 2001 reduced the level of moisture in the soil. When intensely cold winds meet with dry soil the perfect conditions are created for dust clouds and sandstorms.

(china.org.cn by Zhang Tingting December 28, 2002)

Tools: Save | Print | E-mail | Most Read

Related Stories
Inner Mongolia Sandstorm Affects Northeast China
Program to Combat Dust Storms
Green Belt to Halt Spread of Deserts
China to Invest Heavily in Battling Sandstorms
Snow Used to End Sandstorms
China to Divert Slush to Curb Sandstorms
China, Japan and ROK Agree on Monitoring Sandstorms
 
SiteMap | About Us | RSS | Newsletter | Feedback
SEARCH THIS SITE
Copyright ? China.org.cn. All Rights Reserved E-mail: webmaster@china.org.cn Tel: 86-10-88828000 京ICP證 040089號
久久精品30_一本色道久久精品_激情综合视频_欧美日韩一区二区高清_好看的av在线不卡观看_国产自产精品_91久久黄色_午夜亚洲福利_欧美黄在线观看_国内自拍一区
欧美中文字幕一区二区三区| 亚洲国产精品国自产拍av| 久久99伊人| 欧美一级专区| 国产精品最新自拍| 亚洲在线黄色| 色哟哟一区二区| 欧美中文字幕一区二区三区亚洲| 91黄色激情网站| 欧美日韩一区二区三区高清| 4438x成人网最大色成网站| 欧美日韩视频在线第一区| 7777精品伊人久久久大香线蕉完整版| 欧美日韩国产免费一区二区| 日韩一区二区免费高清| 久久久精品天堂| 成人欧美一区二区三区在线播放| 亚洲三级免费观看| 日韩电影免费一区| 国产精品538一区二区在线| 成人福利在线看| 亚洲特级毛片| 久久久久国内| 日韩欧美的一区| 中文字幕国产精品一区二区| 亚洲免费大片在线观看| 日本在线不卡一区| www..com久久爱| 影音先锋久久久| 在线影院国内精品| 欧美精品一区二区三区在线播放 | 亚洲一区影音先锋| 美女视频黄 久久| av在线免费不卡| 夜夜嗨网站十八久久 | 午夜精品久久久| 粉嫩一区二区三区性色av| 韩国精品一区二区三区| 久久久人人人| 久久久久久久综合色一本| 一区二区欧美在线观看| 国产主播一区二区| 禁久久精品乱码| 69堂亚洲精品首页| 亚洲日本在线观看| 国产成人午夜99999| 一区福利视频| 欧美一区二区三区在线视频 | 欧美大片一区二区三区| 久久久国产午夜精品| 亚洲成人福利片| 成人激情图片网| 欧美成人猛片aaaaaaa| 国产精品国产三级国产三级人妇| 日韩激情一二三区| 欧美激情亚洲| 欧美老女人在线| 亚洲一区二区三区四区在线观看 | 欧美一区二区三区在线播放 | 欧美性色综合网| 国产精品福利在线播放| 国产一区999| 免费视频久久| 国产精品国产三级国产普通话99 | 欧美久久99| 日韩免费高清av| 日日噜噜夜夜狠狠视频欧美人 | 精品国产百合女同互慰| 蜜臀久久久久久久| 国产视频在线观看一区| 欧美精品一区二| 国产一区欧美一区| 日本高清免费不卡视频| 亚洲精品日韩一| 欧美日韩三级| 久久久久久久久久久久电影| 国产一区二区在线电影| 亚洲欧美bt| 亚洲资源中文字幕| 影音先锋久久精品| 国产精品久久久久久久久动漫| 成人国产精品免费网站| 欧美久久一二三四区| 日本不卡一区二区三区高清视频| 激情视频一区| 中文字幕的久久| 午夜精品999| 久久久精品国产免费观看同学| 国产成人亚洲综合色影视| 欧美中文字幕不卡| 乱一区二区av| 欧美日韩一区二区三区在线看| 视频在线观看一区| 久久精品天堂| 日韩精品国产精品| 一本久久精品一区二区| 日韩电影一区二区三区四区| 久久九九99| 麻豆精品久久久| 欧美日韩一卡二卡| 国内外成人在线| 91精品欧美综合在线观看最新| 国内外精品视频| 91麻豆精品国产91久久久更新时间 | 亚洲精品免费视频| 亚洲影院在线| 天堂av在线一区| 欧美性高清videossexo| 精品一二三四在线| 日韩精品一区二区三区中文不卡 | 在线日本高清免费不卡| 亚洲欧美一区二区三区孕妇| 国产精品日韩二区| 日韩精品欧美成人高清一区二区| 中文字幕欧美激情一区| 欧美精品三级| 亚洲精品中文在线| 色噜噜狠狠成人网p站| 激情综合色丁香一区二区| 这里只有精品视频在线观看| 91污片在线观看| 亚洲另类在线视频| 91福利视频久久久久| 国产精品香蕉一区二区三区| 久久久久亚洲蜜桃| 日韩视频在线观看国产| 视频一区中文字幕| 日韩午夜激情电影| 亚洲无线一线二线三线区别av| 亚洲一区在线播放| 91精品国产高清一区二区三区| 91亚洲国产成人精品一区二区三| 亚洲精品ww久久久久久p站| 色国产综合视频| jlzzjlzz亚洲女人18| 亚洲精品写真福利| 欧美在线观看视频一区二区三区| 懂色av一区二区在线播放| 亚洲欧美日韩综合aⅴ视频| 色综合激情五月| 91麻豆自制传媒国产之光| 一区二区三区在线免费视频| 91麻豆精品国产无毒不卡在线观看| 欧美成人午夜| 亚洲1区2区3区4区| 久久先锋影音av鲁色资源| 亚洲一区精品视频| 成人免费看视频| 亚洲午夜视频在线观看| 欧美大度的电影原声| 亚洲精品日韩久久| 成人午夜视频网站| 日韩成人av影视| 国产精品蜜臀av| 欧美一区在线视频| 亚洲免费在线| 欧美三级特黄| 国产精品99久久久久久宅男| 一区二区三区 在线观看视频| 精品欧美乱码久久久久久| 一本大道久久a久久综合| 欧美日韩精品免费观看视一区二区| 麻豆91免费看| 有码一区二区三区| 久久免费美女视频| 91精品国产手机| 久久亚洲欧洲| 一色屋精品视频在线看| 成人精品视频一区| 日韩高清中文字幕一区| 亚洲精品欧美综合四区| 国产调教视频一区| 91精品国产综合久久久久久久| 久久久精品日韩| 亚洲国产日韩美| 欧美精品一区二区三区在线看午夜 | 久久亚洲春色中文字幕久久久| 欧美日韩国产一级二级| 国产精品久久久久久模特| 欧美精品日本| 欧美一区激情| 99久久久无码国产精品| 国产一区三区三区| 久久超碰97中文字幕| 日韩专区欧美专区| 亚洲综合精品自拍| 亚洲永久免费av| 《视频一区视频二区| 日本一区二区成人| 久久精品亚洲国产奇米99| 91精品麻豆日日躁夜夜躁| 欧美视频中文一区二区三区在线观看| 午夜亚洲一区| 久热精品在线| 欧美在线一区二区| 欧美日韩美少妇| 欧美电影一区二区| 亚洲视频电影在线| 亚洲精品中文在线影院| 一区二区三区免费观看|