【摘要】 以河北易县崇陵丘陵山区为研究对象,在实验的基础上,针对主要土壤质地、坡度和植被,研究不同下垫面条件下土壤水分变化规律,得到典型土壤质地的物理参数,并对土壤水分的动态变化规律进行了研究。实验结果表明,土壤质地对土壤物理参数和土壤水分变化影响非常大,明显强于植被和坡度。土壤质地对表层和深层水分的变化影响很大,活跃层受质地影响相对较小。更多还原

【Abstract】 Taking the hilly area of Chongling district in Yixian County of Hebei Province as a study object, the changing law of the soil moisture under different conditions of underlying surfaces is studied for the main soil texture, slope and vegetation on the basis of the experiment concerned, and then the typical physical parameters of the soil texture are obtained and the dynamic changing law of the soil moisture is studied as well. The results show that the soil physical parameters and the soil moisture change are greatly affected by the soil texture, and the effect is obviously stronger than those from the vegetation and slope. Consequently, the soil texture has a great effect on the changes of water content in both the surface layer and deep layer and has less effects on the active layer as well.更多还原