土壤中砾石存在对入渗影响研究进展

Effect of Soil Containing Rock Fragment on Infiltration

石质山区的土壤中含有大量砾石,土壤中大量砾石存在会影响土壤物理特性和水力特性,从而对土壤入渗规律造成影响。本文主要介绍了国外土壤中砾石存在对土壤物理特性、水力特性以及入渗规律影响研究的现有研究成果,国外现有研究结果表明,土壤中砾石存在对入渗影响较为复杂,砾石覆盖/含量与入渗量之间既有正相关关系,也有负相关关系。

Soils contain large numbers of rock fragments in the soil matrix. Rock fragments affect physical soil properties and hydraulic soil properties by their presence in soil matrix and on the soil surface. Thus, rock fragments influence on infiltration. Within the soil the physical properties and hydraulic properties that affect infiltration are shown to be influenced by rock fragment. Rock fragment have been reported to both increase or decrease infiltration rate and amounts.