LIU Zu-xiang, CHEN Xiao-min, JING Yan, et al. Hydraulic Characteristics and Its Impact Factors in Typical Red Soil Region[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 21-25.
LIU Zu-xiang, CHEN Xiao-min, JING Yan, et al. Hydraulic Characteristics and Its Impact Factors in Typical Red Soil Region[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 21-25.DOI:
varying range of available water in typical red soil more systematically
and undisturbed red soil samples in soil profiles were collected.The soil hydraulic characteristicsand impact factors also were studied.The results showed that the range of undisturbed soil saturated hydraulic conductivity was between 1.44×10-3 and 3.45×10-3 cm/s.Its value decreased from top to bottom.Thesaturated water content
field capacity
wilting water and available water were figured out from the soilmoisture characteristic curves.Available water content varied from 0.083to 0.124cm3/cm3
and surface soillayer was the largest one.There were some correlations between hydraulic characteristics and its impact factors
such as bulk density
soil texture
organic matter content and soil structure coefficient.The soil bulkdensity and porosity were the main impact factors.