Research Article

A Bayesian Method for Water Resources Vulnerability Assessment: A Case Study of the Zhangjiakou Region, North China

Table 1

Assessment standard of the indicators for different WRV types (Li, 2007) [19].

SubsystemIndicatorDescription/reflectionNo
WRV
Low
WRV
Medium
WRV
High
WRV
Extreme
WRV

ARegional water resources income 15001200800400100
System stability 1020304050
Water abundance403020105
Ground water recharge capacity805020105
Regional climate0.51357

BPopulation pressure on water resources2500200015001000500
Water utilization efficiency 1003506008501100
Water utilization level100300500700900
Water manage level 515253545
Water supply and demand balance10.90.80.70.6
Status of water resources development1030507090
Repetitive utilization degree of industrial water8065503520

CImpacts of land development on water resources30350658090
Agricultural pollution intensity on water quality102528010001500
Surface water quality00.10.20.51
Groundwater quality05356085
Area changes of soil and water loss010203040
Degree of sewage disposal9075604530

DWater saving capacity of agriculture8060403020
Regulating capacity of hydraulic engineering5040302010
Storage and release capacity of reservoirs8065504030

Note: A: hydrological subsystem; B: socioeconomic subsystem; C: ecoenvironmental subsystem; D: hydraulic engineering subsystem; : mean annual precipitation (mm); : annual relative variability of precipitation (%); : mean water resources amount of unit area ( m3/km2); : groundwater recharge of unit area ( m3/km2); : drought index; : water resources per capita (m3/capita); : water consumption per unit GDP (m3/ yuan); : water consumption per capita (m3/capita); : difference between planned and actual water utilization amount (%); : water supply and demand ratio; : water resources development and utilization ratio (%); : repetitive utilization ratio of industrial water (%); : land development ratio (%); : fertilizer use intensity (kg/ha); : pollution index of surface water; : ratio of polluted groundwater exceeding the standard (%); : ratio of soil and water loss (%); : disposal ratio of sewage (%); : water-saving irrigation ratio (%); : ratio of design utilizable storage of reservoir to surface water quantity (%); : ratio of effective storage to total storage of reservoirs (%).