[1]WANG Min,LI Zhanbin,CUI Lingzhou,et al.Study on Spatial Variation of Geomorphology Multi-Fractal Characteristic in the Dali River Watershed[J].Research of Soil and Water Conservation,2017,24(05):178-181,188.
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Study on Spatial Variation of Geomorphology Multi-Fractal Characteristic in the Dali River Watershed
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 05
Page number:
178-181,188
Column:
Public date:
2017-10-28
- Title:
- Study on Spatial Variation of Geomorphology Multi-Fractal Characteristic in the Dali River Watershed
- CLC:
- P642.2
- DOI:
- -
- Abstract:
- Based on the digital elevation model (DEM) of eleven subwatersheds of the Dali River watershed, the geomorphology multi-fractal parameters were calculated by using watershed geomorphology multi-fractal model and its spatial variation was also analyzed. The mean values of the geomorphology multi-fractal parameters, including αmin, f(αmin) and f(αmax), obviously decreased from the upstream to downstream. The mean values of αmax and Δα showed increasing trends from the upstream to downstream. The results indicated that the proportion of geomorphic unit with higher slope was more than with lower slope in the upstream, whereas the proportion of geomorphic unit with lower slope was more than with higher slope in the downstream. The topographic features of the Dali River watershed became more complex from the upstream to downstream. The mean values of αmin and f(αmin) on the left bank were greater than on the right bank of the Dali River watershed, which suggested that the proportion of geomorphic unit with higher slope on the left bank was more. The mean value of Δf on the left bank was more than on the right bank, which suggested that the proportion of geomorphic unit with higher slope on the right bank was more. The mean value of Δα on the right bank was more than on the left bank, which indicated that the topographic features on the right bank were more complex than on the left. In a word, the topographic features on the right bank were more divergent, homogeneous and complex than on the left bank. The results are of great scientific significance to effectively resolve the complex issues and master the characteristics of various landforms in geomorphology.
- References:
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