Fig 1.
Republished from<Identification and influencing factors of gully activity in the Sunshui river basin> under a CC BY license, with permission from China West Normal University, original copyright 2003.
Fig 2.
The processed DEM map of the study area.
Fig 3.
The filling color block unit is the basic morphological parameter.
Fig 4.
NDVI map of study area.
Fig 5.
Land use type map of Sunshui River basin.
Table 1.
Land use classification.
Table 2.
Trapezoidal function.
Table 3.
Subordinate function of gully activity under different VC(%).
Table 4.
Subordinate function of gully activity under different slopes.
Table 5.
Classification of gully activity under different MBGR.
Table 6.
Activity index of 71 gullies in the study area.
Fig 6.
Schematic representation of the level of gully activity.
Table 7.
Empirical judgment results and comparison.
Table 8.
Topographic index values of gullies with different activity levels.
Fig 7.
(a-c) The aspect map, (d-f) The topographic relief map, (g-i) The surface roughness map, (j-l) The surface curvature map.
Fig 8.
The correlation between gully activity and influence factors.
TR represents topographic relief, SR represents surface roughness, As represents slope aspect, LUT represents land use type, SC represents surface curvature and AI represents activity index.
Fig 9.
Distribution characteristics of gully activity index on LUTs, TR and SC.
Fig 10.
The relationship between activity index and VC (a), slope (b), and MBGR (c).
Table 9.
Descriptive data and difference test of activity of each evaluation factor.