ZHAO Jing-bo, WANG Chang-yan, XING Shan. Soil Moisture Characteristics of Third and Fourth Horizons of Loess and Paleosols in Luochuan County of Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2012, 31(4): 10-16.
ZHAO Jing-bo, WANG Chang-yan, XING Shan. Soil Moisture Characteristics of Third and Fourth Horizons of Loess and Paleosols in Luochuan County of Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2012, 31(4): 10-16.DOI:
Based on determination of soil water retention curves and field moisture capacity of intact soil sam-ples of Loess and Paleosols in Luochuan County
Shaanxi Province
the study analyzed the physical soil prop-erties including soil moisture storage
holding capacity and effective moisture content. The results indicate that the water retention curves of soil samples could be described well with Van Genuchten model with the high R2 values(over 0.99). The water holding capacity of the loess samples were higher than that of the Pal-eosol samples in the range of 0 to 30 kPa
suggesting that loess performs better in water supply and storage. With increasing suction values
water supply and storage reduced with larger amplitude in low suction range and smaller amplitude in high suction range. Loess showed higher available water content
saturated water content and field holding capacity