西北沙漠风蚀起沙观测试验及其研究进展  

The Observation Experiment of Dust Emission by Wind Erosion over Northwest China Deserts and Its Research Advances

作　　者：何清[1,2] 杨兴华[1,2] 艾力.买买提明 霍文[1,2] 刘新春 

机构地区：[1]中国气象局乌鲁木齐沙漠气象研究所,新疆乌鲁木齐830002 [2]塔克拉玛干沙漠大气环境观测试验站,新疆塔中841000

出　　处：《沙漠与绿洲气象》2012年第3期1-7,共7页Desert and Oasis Meteorology

基　　金：国家自然科学基金项目(41175017);公益性气象行业专项(GYHY201006012);中国沙漠气象科学研究基金(Sqj2010014)

摘　　要：简要阐述了由国家自然科学基金"西北沙漠地表沙粒运移特性及动力热力参数研究"支持的"我国西北三大沙漠地表风蚀起沙观测试验"的科学意义、试验方案和科学目标,总结了该试验在前期的进展和取得的部分研究成果,概括叙述了该项目在地表沙粒跃移特征、起沙风速、沙尘通量等方面的重要发现和一些新的认识。最后,提出并讨论了在沙漠风蚀起沙观测试验方面需要进一步研究和思考的一些重要问题。The scientific meaning,experiment scheme and scientific objectives of the observational experiment of dust emission by wind erosion over the northwestern China deserts are illustrated briefly in this paper.The work is supported by the project of National Natural Science Foundation,which is the ＂Research on the Characteristics and Dynamic-Thermodynamic Parameters of Surface Movement on northwestern deserts in China＂.Some of the research progress and achievements in recent years are summed up.presenting some important discoveries and new ideas such as the characteristics of surface sand particles saltation,threshold velocity for sand transport and horizontal sand flux.Some problems existing in the experiment which should be further considered and studied are discussed.

关 键 词：西北沙漠 风蚀 沙尘通量 观测试验 科学问题 

分 类 号：P445.4[天文地球—大气科学及气象学]