今年３月以来，我国北方地区连续发生了１３次扬沙、沙尘暴天气，其中有９次影响到北京，为５０年来所罕见，严重威胁首都地区的生态安全，引起党中央、国务院及有关各级领导的高度重视。朱镕基总理对河北省及内蒙古等地进行考察后指出，必须把防沙治沙、加强生态环境建设，作? Since March this year, there have been 13 consecutive sand-blowing and dust-storming weather in northern China, of which 9 have affected Beijing. They have been rare for 50 years and have posed a serious threat to the ecological security in the capital. This has caused the Central Party Committee, the State Council and all relevant levels Leaders attach great importance. Premier Zhu Rongji inspected Hebei Province, Inner Mongolia and other places and pointed out that we must take the role of preventing and controlling desertification and strengthening the ecological environment construction.