【作者】 李永业；

【导师】 孙西欢；

【作者基本信息】 太原理工大学 ， 水力学及河流动力学， 2006， 硕士

【摘要】 干旱和水土流失是我国北方山丘区存在的两个较为严重的问题，蓄水坑灌法便是针对这两个问题而提出的适用于山丘区果林灌溉的一种新的节水灌溉方法。该方法不仅具有节水，保水，抗旱，增产等特点，而且能充分利用当地降雨径流，减小水土流失。本文通过对蓄水坑灌条件下的土壤水分运动进行室内研究，旨在确定合理的蓄水坑灌法的技术参数以及准确的评价其灌水效果，从而为蓄水坑灌法从室内走向田间奠定了一定的理论基础。 本论文的主要研究内容如下： 1．垂直一维蒸发条件下土壤水分运动试验研究 通过研究垂直一维蒸发条件下的土壤水分运动试验，得出如下结论： (1)容重对土壤累积蒸发量的影响 随着土壤容重的增加，土壤的累积蒸发量逐渐减小；同一容重下，随着蒸发时间的延长，土壤的累积蒸发量逐渐增大，但随着蒸发时间的延长，土壤的蒸发速度逐渐减小； (2)初始含水量对土壤累积蒸发量的影响更多还原

【Abstract】 In northern China, drought and soil erosion are very severe. Water storage pit irrigation is a kind of new irrigation method that solves the two problems in hilly region. This method has the characteristic of saving water, molding moisture, drought defying, increasing production and decreasing soil erosion. In the paper, the objectives are to ascertain sound the technical parameter and evaluate the irrigation effect of the water storage pit method by researching the soil moisture movement of the water storage pit method in order to provide the theoretical base for researching on storage pit irrigation from the indoors to the field.In this paper, the main results are as follows:1. The experimental study of the soil moisture movement on the evaporation condition of vertical experiment on one dimensionBy the experimental study of the soil moisture movement on the evaporation condition of vertical experiment on one dimension the main conclusions are as follows:(1) The effect of the bulk density on the soil accumulative evaporation capacityThe soil accumulative evaporation capacity dwindled away with the更多还原