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通过对2010年5—11月策勒绿洲—沙漠过渡带流沙前沿50 cm高积沙方口和全方位跃移及全方位蠕移、BNSE集沙系统13个阶段积沙数据进行分析,结合大气象站2 m高同步积沙阶段的平均风速进行分析对比,发现策勒流沙前沿方口积沙仪各高度积沙量随高度分布大部分符合对数、指数和多项式函数分布规律,且拟合程度较好,10 cm和30 cm高度范围的积沙量占总输沙量的百分比分别在23.43%～50.40%和64.30%～83.13%,且分别多集中在40%～50%和80%左右。随着每阶段大于起沙风的平均风速的增大或减小,各积沙仪总输沙率也会总体上呈现相应的增大或减小,二者大致呈正相关关系,积沙仪不同高度不同阶段输沙量的变化除了与风速、地形有很大关系外,通过研究发现每次积沙阶段大于10 mm以上的较大的降雨量将会对积沙仪输沙量和风沙流结构产生一定影响。
Based on the analysis of sediment production data of 13 stages of BNSE sediment collection from the 50 cm high-sediment mouth and the full scale creeping and omnidirectional creeping in the frontier of the quicksand in the Cele Oasis-desert transition zone from May to November in 2010, The average wind speed at the 2 m high synchronous sediment stage of the weather station is analyzed and compared. It is found that the sediment concentration at each height of the frontier sand mouth of Celestial summer runners is highly consistent with logarithmic, exponential and polynomial function distributions and fitted The percentages of total sediment concentration in the range of 10 cm and 30 cm were 23.43% ~ 50.40% and 64.30% ~ 83.13% respectively, and were mostly concentrated in 40% -50% and 80% respectively . As each stage is larger than the average wind speed of the rising and falling winds, the total sediment transport rate will increase or decrease as a whole, which shows a positive correlation between the two. In addition to the great relationship between wind speed and topography, the change of sediment discharge at different height stages shows that the larger rainfall of more than 10 mm in each sediment stage will affect the sediment load and sand flow structure Have a certain impact.