Transitional relation exploration for typical loess geomorphologic types based on slope spectrum characteristics
Based on the Chinese Geomorphologic Database at 1 : 1 000 000 scales, the distribution of the typical loess geomorphologic types (such as the loess tableland, loess ridge and loess knoll) is acquired in the Loess Plateau of China. Then, based on the SRTM (Shuttle Radar Topography Mission) digital el...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-08-01
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| Series: | Earth Surface Dynamics |
| Online Access: | http://www.earth-surf-dynam.net/2/433/2014/esurf-2-433-2014.pdf |
| Summary: | Based on the Chinese Geomorphologic Database at 1 : 1 000 000 scales, the
distribution of the typical loess geomorphologic types (such as the loess
tableland, loess ridge and loess knoll) is acquired in the Loess Plateau of
China. Then, based on the SRTM (Shuttle Radar Topography Mission) digital
elevation model (DEM) data and topographic analysis methods, the slope
spectrums are computed for the typical loess geomorphologic types and their
subtypes. Through achieving the tendency line of the slope spectrum and
analysing the slope spectrum characteristics of the loess typical
geomorphologic types, the transitional relationships are explored: (1) the
general rule is that loess tableland transitions to loess ridge, and then to
loess knoll. (2) The specific relationships for the subtypes are as follows:
in loess tableland, the transition is from loess terrace to complete
tableland, then to residual tableland, and finally to beam tableland. In the
loess ridge, the transition is from oblique ridge to knoll ridge, and the
final stage is the loess knoll. |
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| ISSN: | 2196-6311 2196-632X |