[1]ZHANG Qi,XIA Jihong,WANG Yingjun,et al.Research on Fractal Dimension-Based Deposition Distribution on the Floodplains in Medium or Small Rivers[J].Research of Soil and Water Conservation,2019,26(02):366-369,376.
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Research on Fractal Dimension-Based Deposition Distribution on the Floodplains in Medium or Small Rivers
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 02
Page number:
366-369,376
Column:
Public date:
2019-04-28
- Title:
- Research on Fractal Dimension-Based Deposition Distribution on the Floodplains in Medium or Small Rivers
- Keywords:
- hills; riparian zones; soil; stone; spatial heterogeneity
- CLC:
- TV853
- DOI:
- -
- Abstract:
- The Lingshan River, in Longyou County, Zhejiang Province, was taken as a typical example of small and medium rivers in hilly area, and the spatial distribution of deposition and its impact factors were studied based on the fractal theory. The deposition has obvious segmented, zoning and layered features. From upstream to downstream, the fractal dimension of the soil increases. In cross section, it is a high-amplitude region of soil fractal dimension in the distance of 0～16 m from the water, and a low-amplitude region in the distance of 10～49 m from the water, and a stable region in the distance of 49 m from water to the boundary of the floodplain. From vertical view, the fractal dimension of soil in 0—20 cm layer is smaller than that in 20—40 cm layer. From upstream to downstream, the fractal dimension of the gravel increases. In cross section, the gravel mainly distributes in the distance of 4～33.5 m from the water, farther the distance from the water is, larger the stone fractal dimension is. The spatial differentiation of deposition is mainly influenced by flow, vegetation, sediment removal, floodplain topography and periodic flooding and so on. In the floodplain with serious sediment removal, with respect to restoration, the segmented, zoning and layered features should be taken into consideration and suitable matrix should be arranged in order to ensure stability and exertion of function of the floodplains.
- References:
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1900-01-01