中文摘要：

有许多沉积，在山黄土高原套住水库。Huangtuwa 小集水作为样品在有 12.73 m 的垂直长度的沉积存款侧面是镇定的一块研究地被选择。由好粒子内容和花粉集中的变化， 54 对洪水夫妇被识别。拿结冰融化在一年里作为最近的洪水夫妇的符号扰乱了质地，那些 54 洪水应该发生在 31 年里，这被查明。用金字塔体积计算公式，洪水的沉积收益在 716 30376 t · km ⁻² 之间变化了。平均沉积收益是 7106 t · km ⁻² 。年度沉积收益在 968 55579 t ·(km ² ·之间变化了一)⁻¹, 和平均价值是 12629 t ·(km ² ·一)⁻¹ 。与 Huaining 河的现代年度沉积分泌物相比，在 Huangtuwa 区域的侵蚀率 450 年以前类似于现代侵蚀率。在到第 31 年的从第 27 年的时期，平均年度沉积收益严厉地增加了到 31309 t ·(km ² ·一)⁻¹ 。自从在植被已经恢复了的地方，山崩灾难在集水引起了很严重的土壤侵蚀，它在集水暗示了放弃的陆地的那重新开垦。

英文摘要：

There are many sediment trapping reservoirs in the Hill Loess Plateau. The Huangtuwa small catchment is selected as a research field where samples were collected in a sediment deposit profile with a vertical length of 12.73 m. By the variation of fine particle content and pollen concentration, 54 flood couples were identified. Taking the freeze-thawing disturbed texture as the sign of the latest flood couple in a year, it is ascertained that those 54 floods should happen in 31 years. Using pyramid volume calculation formula, the sediment yields of flood ranged between 716-30376 t· km^-2, The average sediment yield was 7106 t· km^-2, The annual sediment yields varied between 968-55579 t· （km^2· a）^-1, and the average value is 12629 t· （km^2· a）^-1. Compared with the modern annual sediment discharge of the Huaining River, the erosion rate in the Huangtuwa region 450 years ago was similar to the modern erosion rate. In the period from the 27th year to the 31st year, the average annual sediment yield increased sharply to 31309 t· （km^2· a）^-1. It implied that re-reclamation of the abandoned land in the catchment since the landslide disaster, where vegetation had rehabilitated already, caused very severe soil erosion in the catchment.