LI Jianjun, JIAO Juying, CHEN Yixian, et al. Elementary Study on Gully Classification on the Qinghai-Xizang Plateau[J]. 2025, 39(1): 1-9.
DOI:
LI Jianjun, JIAO Juying, CHEN Yixian, et al. Elementary Study on Gully Classification on the Qinghai-Xizang Plateau[J]. 2025, 39(1): 1-9. DOI: 10.13870/j.cnki.stbcxb.2025.01.027.
Elementary Study on Gully Classification on the Qinghai-Xizang Plateau
Objective Traditional gully classification systems focus on agricultural landscapes. However
on the Qinghai-Xizang Plateau
where human activity is limited
gullies primarily occur in natural landscapes. Therefore
it is necessary to propose a tailored gully classification system that is suited to the natural landscapes of the Qinghai-Xizang Plateau.Methods Extensive field investigations were conducted in typical regions of the Qinghai-Xizang Plateau
including the Yarlung Zangbo River and its two tributaries
the Southeast Xizang
the Qiangtang Plateau
the Three-River Headwaters region
the Hehuang Valley
the Qaidam Basin
and the Qilian Mountains. These field studies were complemented by indoor interpretations using sub-meter high-resolution remote sensing imagery.Results Various landforms that resemble but are not gullies in terms of genesis or morphology were identified and distinguished. The gullies were classified based on multiple criteria
including scale
genesis
the landform in which they developed
and morphology. The gullies were classified by scale into small
medium
large
and giant gullies; by genesis into rainfall-runoff gullies
snowmelt-mudflow gullies
glacial gullies
permafrost-thermal gullies
and human activity gullies; by the landform in which they developed into steep-slope gullies
valley-bottom gullies
gentle-slope gullies
cliff gullies
terrace gullies
tableland-edge gullies
and tableland-surface gullies; and by morphology into straight gullies
curved gullies
spoon-shaped gullies
strip-shaped gullies
widened gullies
narrow-long gullies
wide-short gullies
radial gullies
parallel gullies
and dendritic gullies.Conclusion This study preliminarily proposes a comprehensive gully classification system based on multiple criteria suitable for the characteristics of the Qinghai-Xizang Plateau. It suggests using scale as the primary basis for comparison with gully classification systems in other regions
such as the Loess Plateau
and provides support for soil erosion research and ecological environment protection on the Qinghai-Xizang Plateau.
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