Figures

Figure 1. Location of the study site in the Middle and Lower Reaches of Yangzi River Region.
Figure 2. Seasonal variation of precipitation in Nanchang.
Figure 3. Map of the study site. a. The aerial photograph of the Studying District (XIFS); b. Division diagram of XIFS catchment for the comparison between the TRS and GRS; c. division diagram of XIFS catchment for the comparison between the GRS and IGRS.
Figure 4. Two hours Precipitation of 2-yr, 10-yr and 100-yr Storms.
Figure 5. Comparison of runoff hydrographs between TRS and GRS for 3 single precipitation events (2-yr, 10-yr, and 100-yr). P: precipitation; Qr: discharge of runoff.
Figure 6. Comparison of flood flow between TRS and GRS for 3 single precipitation events (2-yr, 10-yr, and 100-yr). P: precipitation; Qf: discharge of flood.
Figure 7. Comparison of hydraulic conditions between TRS and GRS for 2 single precipitation events (10-yr, and 100-yr). a. the flooding nodes (10-yr precipitation); b. the flooding nodes (100-yr precipitation); c. the overloaded conduits (10-yr precipitation); d. the overloaded conduits (100-yr precipitation).
Figure 8. Daily mean GRS runoff over 31 years (1985-2015).
Figure 9. Daily mean GRS ET over 31 years (from 1985-2015).
Figure 10. Comparison of evaporation (E) of TRS and GRS by SWMM and evapotranspiration (ET) of GRS by five methods. P: precipitation; AET: Actual ET; RET: Reference ET; PET: Potential ET.
Figure 11. Comparison of Flooding Flow among the GRS, IGRS and TRS for 2 single precipitation events (10-yr and 100-yr). a. 10-yr storm (1-meter width greenbelt); b. 10-yr storm (2-meter width greenbelt); c. 10-yr storm (3-meter width greenbelt); d. 100-yr storm (1-meter width greenbelt); e. 100-yr storm (2-meter width greenbelt); f. 100-yr storm (3-meter width greenbelt).
Figure 12. Comparison of the Flooding Nodes among the GRS, IGRS and TRS for 2 single precipitation events (10-yr and 100-yr). a. 10-yr storm (1-meter width greenbelt); b. 10-yr storm (2-meter width greenbelt); c. 10-yr storm (3-meter width greenbelt); d. 100-yr storm (1-meter width greenbelt); e. 100-yr storm (2-meter width greenbelt); f. 100-yr storm (3-meter width greenbelt).
Figure 13. Comparison of the Overload Conduits among the GRS, IGRS and TRS for 2 single precipitation events (10-yr and 100-yr). a. 10-yr storm (1-meter width greenbelt); b. 10-yr storm (2-meter width greenbelt); c. 10-yr storm (3-meter width greenbelt); d. 100-yr storm (1-meter width greenbelt); e. 100-yr storm (2-meter width greenbelt); f. 100-yr storm (3-meter width greenbelt).