风沙运动力学机理研究的历史、进展与趋势

回顾了风沙运动力学机理研究历史,阐述了中国在风沙运动力学机理研究方 面所取得的最新进展，提出了目前存在的问题和今后发展的趋势.

RESEARCH HISTORY, ACHIEVEMENTS AND TREND ON MECHANISM OF AEOLIAN TRANSPORT

Wind erosion is the main sign of land desertification.The movement of sand particles on the land surface and in the air driven by air flow is the main origin of initiation and evolution of wind erosion and sand storm.The research on the mechanism of aeolian transport is the main task of desert science and sand prevention and control engineering.Since Bagnold published his monograph named"The physics of blown sand and desert dune",the research on the mechanism of aeolian transport has achieved many progresses in mechanism of interactions between moving particles and bed,mass flux of sand transport,distributions of energy and concentration of sand particles,impacting and friction effects of sand particles on various materials. Research and practice show that only when a breakthrough in the research of mechanism of aeolian transport is gained,can the mechanism of interactions between moving particles and bed,the transport and sediment processes be understood fully,and further,establish design principles of sand prevention and control engineering. This paper briefly reviewed the history of mechanism research of aeolian transport firstly.Then the latest recent achievements are summarized.Finally,the authors analyze the problems in present study,and suggest the further trends of study.