Experimental Study on Main Factors Influencing Water Infiltration Features of Field Soils

Based on the infiltration experiments of field soils,the main factors which influence the water infiltration features of field soils were analyzed and discussed.The experimental results indicated that the water infiltration features of field soils were influenced by soil moisture,soil structure and soil texture.They have strong influence on infiltration into field soils.Infiltration capacity of field soils decreased while the moisture content increased.The infiltration capacity decreased with soil clay content increasing,where mass percent of clay content of soil grain less than 0.002 millimeter represented soil structures.The infiltration capacity decreased with soil compactness increasing.The result is of practical meaning in determining the field irrigation technical parameters.