## 2 Materials and Methods
### Materials
#### 2.1.3 FR and Correlation Analysis of Predisposing Factors
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Factors**} & \multirow{2}{*}{**Data Type**} & \multirow{2}{*}{**Value**} & \multirow{2}{*}{**Grids in Domain**} & \multicolumn{2}{c}{**Grid**} & \multicolumn{2}{c}{**Landslide**} & \multicolumn{2}{c}{**Grid**} & \multirow{2}{*}{**Frequency**} \\  & & & **Domain** & **Proportion** & **Grid** & **Support** & **Proportion** & **Ratio** \\ \hline \multirow{10}{*}{Plan curvature} & \multirow{4}{*}{Continuous} & 0–9.909 & 330,252 & 18.8 & 714 & 26.4 & 1.403 \\  & & 9.909–18.54 & 351,942 & 20.0 & 748 & 27.6 & 1.379 \\  & & 18.54–27.49 & 269,313 & 15.3 & 468 & 17.3 & 1.127 \\  & & 27.49–37.08 & 206,319 & 11.7 & 292 & 10.8 & 0.918 \\  & & 37.08–47.628 & 167,821 & 9.5 & 198 & 7.3 & 0.765 \\  & & 47.628–58.497 & 133,993 & 7.6 & 84 & 3.1 & 0.407 \\  & & 58.497–70.324 & 126,193 & 7.2 & 74 & 2.7 & 0.380 \\  & & 70.324–81.5 & 171,504 & 9.8 & 131 & 4.8 & 0.496 \\ \hline \multirow{10}{*}{Profile curvature} & \multirow{4}{*}{Continuous} & 0–1.694 & 475,975 & 27.1 & 716 & 26.4 & 0.976 \\  & & 1.694–3.267 & 455,721 &.25.9 & 799 & 29.5 & 1.137 \\  & & 3.267–4.961 & 349,124 & 19.9 & 508 & 18.8 & 0.944 \\  & & 4.961–6.776 & 225,132 & 12.8 & 347 & 12.8 & 0.999 \\  & & 6.776–8.832 & 135,555 & 7.7 & 185 & 6.8 & 0.885 \\  & & 8.832–11.373 & 73,762 & 4.2 & 104 & 3.8 & 0.915 \\  & & 11.373–15.003 & 33,044 & 1.9 & 45 & 1.7 & 0.883 \\  & & 15.003–30.8 & 9024 & 0.5 & 5 & 0.2 & 0.359 \\ \hline \multirow{10}{*}{Distance to river (m)} & \multirow{4}{*}{Discrete} & 0–250 & 319,909 & 18.2 & 1237 & 45.7 & 2.508 \\  & & 250–500 & 291,189 & 16.6 & 447 & 16.5 & 0.996 \\  & & 500–750 & 262,670 & 14.9 & 234 & 8.6 & 0.578 \\  & & 750–3000 & 883,569 & 50.3 & 791 & 29.2 & 0.581 \\ \hline \multirow{10}{*}{TWI} & \multirow{4}{*}{Continuous} & 0–6.165 & 327,344 & 18.6 & 430 & 15.9 & 0.852 \\  & & 6.165–7.256 & 488,501 & 27.8 & 800 & 29.5 & 1.062 \\  & & 7.256–8.346 & 401,144 & 22.8 & 718 & 26.5 & 1.161 \\  & & 8.346–9.601 & 259,094 &.14.7 & 476 & 17.6 & 1.192 \\  & & 9.601–11.128 & 138,598 & 7.9 & 164 & 6.1 & 0.768 \\  & & 11.128–13.037 & 78,193 & 4.4 & 60 & 2.2 & 0.498 \\  & & 13.037–15.6 & 42,782 & 2.4 & 42 & 1.6 & 0.637 \\  & & 15.6–18 & 21,681 & 1.2 & 19 & 0.7 & 0.569 \\ \hline \multirow{10}{*}{MNDWI} & \multirow{4}{*}{Continuous} & 0–0.145 & 94,750 & 5.4 & 121 & 4.5 & 0.828 \\  & & 0.145–0.278 & 187,275 & 10.7 & 324 & 12.0 & 1.122 \\  & & 0.278–0.392 & 258,082 & 14.7 & 492 & 18.2 & 1.237 \\  & & 0.392–0.502 & 296,664 & 16.9 & 616 & 22.7 & 1.347 \\  & & 0.502–0.612 & 297,008 & 16.9 & 541 & 20.0 & 1.182 \\  & & 0.612–0.729 & 273,311 & 15.5 & 348 & 12.8 & 0.826 \\  & & 0.729–0.859 & 211,515 & 12.0 & 183 & 6.8 & 0.561 \\  & & 0.859–1 & 138,732 & 07.9 & 84 & 3.1 & 0.393 \\ \hline \multirow{10}{*}{Rock types} & \multirow{4}{*}{Discrete} & Metamorphic rock & 919,176 & 52.3 & 1450 & 53.5 & 1.023 \\  & & 500,159 & 28.5 & 639 & 23.6 & 0.829 \\  & & \multirow{4}{*}{Cristic rock} & 337,500 & 19.2 & 620 & 22.9 & 1.192 \\  & & & Water & 502 & 0.03 & 0 & 0 \\ \hline \multirow{10}{*}{NDBI} & \multirow{4}{*}{Continuous} & 0–0.231 & 220,622 & 12.6 & 143 & 5.3 & 0.421 \\  & & 0.231–0.302 & 407,692 & 23.2 & 324 & 12.0 & 0.516 \\  & & 0.302–0.373 & 385,678 & 21.9 & 502 & 18.5 & 0.844 \\ \cline{1-1}  & & 0.373–0.451 & 283,274 & 16.1 & 575 & 21.2 & 1.317 \\ \cline{1-1}  & & 0.451–0.545 & 211,706 & 12.0 & 561 & 20.7 & 1.719 \\ \cline{1-1}  & & 0.545–0.659 & 142,090 & 8.1 & 349 & 12.9 & 1.593 \\ \cline{1-1}  & & 0.659–0.812 & 77,712 & 4.4 & 200 & 7.4 & 1.670 \\ \cline{1-1}  & & 0.812–1 & 28,563 & 1.6 & 55 & 2.0 & 1.249 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._