陕北黄土水分人渗的野外试验研究

Research on the Field Infiltration Test of Loess in Northern Shanxi

野外入渗试验表明:由于黄土质地均一,且存在根孔、虫孔和裂隙等大孔隙,水分在黄土中的入渗过程是相当复杂的,其入渗方式既有有捷径式下渗,形成优先水流,也有活塞式入渗。

The field test indicate that the moisture infiltration in the loess is rather complicated because of uniformity of the loess and the existence of root hole, wormhole and fissure etc. One of the patterns is short cut infiltration which causes preferential flow. And the other is piston infiltration.