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运用室内水槽实验方法，对无粘性均匀花岗岩沙粒的起动流速和马尾松林枯落物对其起动流速的影响进行了研究，结果表明：沙粒起动流速与沙粒平均粒径、坡度和枯落物量之．间存在明显的幂函数关系，枯落物与苔藓组合层对沙粒起动流速的影响比仅枯落物层时更明显。粒径大于２．０ｍｍ的沙粒当有枯落物覆盖时，即使在３５°的坡度条件下也很难起动。
Using the experimental method of indoor sink, the influence of starting velocity of non-viscous homogeneous granite sand and the litter velocity on the starting velocity of masson pine forest litter was studied. The results show that the initial velocity of sand flux is related to the average particle size, slope and litter The amount of. There was a significant power function relationship between litter and moss. The combination of litter and moss had a more significant effect on the flow rate of sand than the litter only. Grits with a grain size greater than 2.0 mm are difficult to start even when covered with litter, even at a grade of 35 °.