Table 13 Base risk values for each node of the heavy rainfall-geological hazard-flooding chain.
Node name | Base risk value | Node name | Base risk value |
|---|---|---|---|
Rainfall intensity | 4.925 | Building collapse | 3.905 |
Rainfall duration | 4.31 | Casualty | 3.725 |
Lithological | 6.8 | Crops destroyed | 2.938 |
Geological structure | 5.7 | City function | 4.625 |
Slope protection | 3.8 | Urban area | 9.5 |
Gradient | 7.5 | Infrastructure strength | 1.075 |
Intensity of anthropogenic activity | 2.945 | Degree of building ageing | 1 |
Vegetation (land surface type) | 3.9 | Building hydrophobicity | 7.247 |
Loose soil | 7.45 | Population density | 9.5 |
Original water system | 3.75 | Personnel emergency response capacity | 1.917 |
Riverbank dam | 3.5 | Personnel tolerance | 2.62 |
Drainage capacity | 5.35 | GDP of agricultural products | 0.02 |
Topographical difference | 6.25 | Crop growth cycle | 8.9 |
Landslide | 3.15 | Electricity | 2.216 |
Debris flow | 3.1 | Gas Storage | 2.018 |
Debris dammed lake | 1.81 | Water source | 1.455 |
Flash flood | 3.535 | Underground Pipeline | 1.606 |
Flooding | 2.49 | Transport | 4.375 |
Waterlogged | 5 | Communication | 2.125 |
