Table 2 Analysis of factor covariance in debris flow watersheds.

From: Study on debris flow vulnerability of ensemble learning model based on spy technology A case study of upper Minjiang river basin

Factors

TOL

VIF

Watershed area

0.516

1.940

Gully density

0.786

1.272

Roundness

0.608

1.644

Melton ratio

0.481

2.077

Rock mass

0.885

1.130

Distance from road

0.567

1.765

Distance from fault

0.646

1.547

Slope aspect

0.880

1.136

NDVI

0.659

1.518

SPI

0.507

1.971

TWI

0.666

1.503

Rainfall

0.811

1.233

Land use type

0.320

3.123

Curvature

0.304

3.290

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