我国沙尘暴灾害及其研究进展与展望

The duststorm disaster in China and its research progress

我国强沙尘暴灾害的逐年加剧是气候干暖化背景下，沙化土地扩展的结果．沙尘暴的频发已经成为我国北方生态环境恶化的重要标志，加强对我国沙尘暴的研究已成为当务之急．本文阐述了我国沙尘暴灾害的现状及动态演变，综合分析了沙尘暴发生发展的成因，评述了我国沙尘暴的研究历史、进展及存在的问题．

The duststorm disaster is a result of the interaction between the atmosphere boundary dynamics and sandy surface, influenced strongly by the climate condition, especially by wind regime and the vegetation coverage of surface sediments. The duststorm occurring frequently is now becoming an important sign of degradation of ecological environment in the Northern Chi- na, which threatens the life of human being and livestock, causes heavy wind erosion and air pollution. Therefore, it is very urgent to enhance the duststorm research in China.