Sand: 0.02-2 mm; Silt: 0.002-0.2 mm; Clay: <0.002 mm.
Ksat: saturated hydraulic conductivity;
θs: saturated water content;
List of figures
Figure 1. The study site: the location of the Yuanzegou catchment on the
Loess Plateau (a), land use map (b), and a general view of the jujube
plantations (c).
Figure 2. Daily and monthly precipitation distribution at the study site
during the study period. The light orange shading indicates dry spells.
Figure 3. Fine root length density of jujube trees at the study site.
Figure 4. Temporal evolution of soil water storage (SWS) under different
treatments at different depth intervals during the study period. The
columns in the right panels show annual mean SWS for the different
treatments. The single, double, and triple asterisks indicate
significant differences at P <0.05,P <0.01, and P <0.001, respectively.
Figure 5. Depth density of water uptake (DWU) by jujube trees under
various treatments during different years.
Figure 6. The proportion of soil water use (PWU) in the studied profile
(0-280 cm) under various treatments during different years.
Figure 7. Time series for daily transpiration (Td) under
different treatments during the study period.
Figure 8. Seasonal and annual variation in transpiration under different
treatments during the study period. The single, double, and triple
asterisks indicate significant differences at P <0.05,P <0.01, and P <0.001, respectively.
Figure 9. The relationship between annual transpiration and
corresponding mean soil water storage (SWS) in the shallow (0-100 cm)
and deep (100-280 cm) layers.
Figure 10. Mid-day leaf water potential variation for different
treatments in 2015 and 2016. The single, double, and triple asterisks
indicate significant differences at P <0.05,P <0.01, and P <0.001, respectively.