Impact assessment of tidal bore landscape for dike line adjustment in Jiuxi reach of Qiantang River

LI Zhi-yong; CHENG Wen-long; JIN Jian-feng; ZHANG Yu-lun; HUANG Zi-han

doi:10.3969/j.issn.1001-909X.2019.03.010

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Journal of Marine Sciences ›› 2019, Vol. 37 ›› Issue (3) : 79-85. DOI: 10.3969/j.issn.1001-909X.2019.03.010

Impact assessment of tidal bore landscape for dike line adjustment in Jiuxi reach of Qiantang River

LI Zhi-yong¹, CHENG Wen-long¹, JIN Jian-feng², ZHANG Yu-lun², HUANG Zi-han¹

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Abstract

Due to the necessity of construction, it is proposed to adjust the dike line of Jiuxi reach of Qiantang River. Jiuxi is one of the well-known tidal bore scenic spots of Qiantang River, and the tidal bore is an important natural landscape resource in this reach. In order to mitigate the impact of dike line adjustment on the tidal bore landscape, a three-dimensional SCHISM tidal bore model based on finite element/finite volume method was established, which reproduced the phenomenon of Jiuxi tidal bore. Three comprehensive evaluation indexes were put forward, namely, the height of tidal bore, the length of shoreline with significant bore height and the area with significant height of bore, and the impact of levee adjustment on tidal bore was evaluated. The study has reference significance for other projects to evaluate the tidal bore landscape of Qiantang River.

Key words

Qiantang River / tidal bore / SCHISM / evaluation index / dike line adjustment

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LI Zhi-yong, CHENG Wen-long, JIN Jian-feng, ZHANG Yu-lun, HUANG Zi-han. Impact assessment of tidal bore landscape for dike line adjustment in Jiuxi reach of Qiantang River[J]. Journal of Marine Sciences. 2019, 37(3): 79-85 https://doi.org/10.3969/j.issn.1001-909X.2019.03.010

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