Risk Assessment of Debris Flow in Huyugou River Basin Based on Machine Learning and Mass Flow

Table 1

The actual values of each factor in the study area.

Number	River basin area (km^2)	Average slope of the river basin (°)	Shape factor	Channel length (m)	Longitudinal shrinking slope of the main gully (‰)	Relative height difference (m)	Rainfall (mm)	Vegetation coverage (%)	Peak flow (m^3/s)	Strata lithology
1	0.527	19.61	1.1	857	164.53	349	439.462	15.4401	4.39	Siltstone
2	0.324	15.64	1.18	917	186.48	280	439.604	21.7935	2.85	Siltstone
3	0.786	16.98	1.23	1321	146.86	336	439.34	19.8264	6.97	Siltstone
4	1.794	16.79	1.17	2714	64.11	339	439.489	22.7433	17.93	Siltstone
5	0.623	19.72	1.13	1024	87.89	229	439.205	37.3686	5.53	Siltstone
6	0.351	19.69	1.30	484	161.16	255	439.319	24.7348	3.27	Siltstone
7	0.721	18.35	1.29	1225	130.61	342	439.359	21.793	8.80	Siltstone
8	0.532	15.83	1.09	1432	201.12	371	439.155	19.9189	4.60	Siltstone
9	0.585	18.30	1.07	1328	164.16	374	439.11	19.8484	4.06	Siltstone
10	0.211	17.60	1.31	580	193.10	180	438.935	35.3991	1.33	Siltstone
11	0.226	19.09	1.21	526	62.74	167	438.993	36.2723	2.27	Siltstone
12	0.452	15.55	1.22	1005	150.25	285	438.972	29.2496	4.02	Siltstone