石质山地不同条件的土壤入渗特性研究

Study on Soil Promotion Character under Different Condition in Stone Hilly Region

通过对影响土壤渗透的多个因素的测定,研究了石质山地不同土壤不同层次的渗透能力,不同水温对渗透的影响,渗透筒不同插入深度对渗透的影响,由此可以得出,土壤的渗透能力是由各立地条件的土壤理化性质决定的。影响土壤入渗性能的最主要因素是土壤的总孔隙度和非毛管孔隙,这与土壤容重和土壤含水量也有很大关系。入渗与水温表现为较好的线性关系。

Some factors affecting soil penetration were studied. The penetration ability of soil in different arrangement, the influence on the soil penetration of inserting penetration canister to different depth and of different water temperature were analyzed. The result indicated: the characters of soil penetration in the same woodland have stated difference. The uppermost factors infusing the ability of soil promotion are overall hole percentage and nonpipe hole percentage, and they have relations with soil weight of unit volume and soil water contained. The abilities of soil promotion on different soil arrangements are different, the surface layer is the best and the middlelevel is the worst. Side penetration and vertical penetration are paid equal attention when the penetration canister is inserted lower, vertical penetration is more and side penetration islittle. When penetration canister is inserted deep. The relation between soil penetration and water temperature is linearity.