Quantitative analysis of river morphological features in Xiangshan Bay Basin

YUAN Qi-xiang; LI Jia-lin; XU Liang-hui; CHEN Peng-cheng; WANG Ming-yue

doi:10.3969/j.issn.1001-909X.2014.03.007

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Journal of Marine Sciences ›› 2014, Vol. 32 ›› Issue (3) : 50-57. DOI: 10.3969/j.issn.1001-909X.2014.03.007

Quantitative analysis of river morphological features in Xiangshan Bay Basin

YUAN Qi-xiang^1,2, LI Jia-lin^*1,2, XU Liang-hui¹, CHEN Peng-cheng¹, WANG Ming-yue¹

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Abstract

There are many small-scale mountain rivers in Xiangshan Bay Basin, which flow from low mountains to the sea and form a relatively independent small watershed. In this study, the small-scale river features in the inner bay were quantitatively analyzed by the combined method of fluvial landform mathematical model and geographic information system technology. The results show that: (1)Dasong River is the longest and the most meandering river in Xiangshan Bay Basin, whose river fractal dimension value is generally small. (2)The river structures of Fuxi Stream and Dasong River are more complicated and well-developed than those of other rivers in Xiangshan Bay Basin. (3) Overall, apart from the some rivers (such as Yangong River and Qiancang River), other rivers show a trend of concave and stair-step shape. (4)The applications of S-A model has a certainty limitation. Fuxi Stream and Dasong River's bedrock riverbeds are in equilibrium in the S-A model.

Key words

small-scale rivers / fractal dimension data / river longitudinal profile / quantitative analysis

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YUAN Qi-xiang, LI Jia-lin, XU Liang-hui, CHEN Peng-cheng, WANG Ming-yue. Quantitative analysis of river morphological features in Xiangshan Bay Basin[J]. Journal of Marine Sciences. 2014, 32(3): 50-57 https://doi.org/10.3969/j.issn.1001-909X.2014.03.007

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