风沙危害是北京地区四大环境问题之一，它不仅威胁着首都农业生产和农村经济的发展，也给首都的生态环境带来严重影响，尤其是１９７７年世界防治荒漠化会议将北京列为受沙漠化威胁的城市和近几年发生的浮尘天气和强沙尘暴之后，更是引起了党中央、国务院及市委市政府的高度重 Wind and sand hazard is one of the four major environmental problems in Beijing. It not only threatens the capital’s agricultural production and the development of rural economy, but also has a serious impact on the ecological environment of the capital. In particular, the World Conference against Desertification in 1977 listed Beijing as a desertification- Threaten cities and the dust storms and strong dust storms that have taken place in recent years have also caused a great deal of weight in the Central Party Committee, the State Council and the municipal party committee and government