Sea-level Rise Impacts on the Saline Water Intrusion and Stratification of the Yangtze Estuary

Chen, Wei; Mao, Chenhao; He, Lulu; Jiang, Mingtao

doi:10.2112/si95-269.1

Cited by 7 publications

(8 citation statements)

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“…This might be caused by the slow rise of the relative sea level from about 7.0 ka B.P. (Z. Y. Chen & Stanley, 1998; Lambeck et al, 2014; Song et al, 2013; Xie & Yun, 2012; J. Zhang et al, 1982; Zhao et al, 1979; Zong, 2004), which also led to a slower sedimentation rate.…”

Section: Discussionmentioning

confidence: 99%

“…The environment of the Hangjiahu Plain is profoundly influenced by sea‐level changes. Despite the persisting scholarly disagreement on Holocene sea‐level fluctuations, especially on if there was a mid‐Holocene sea‐level highstand in current studies (Bird et al, 2007, 2010; Z. Y. Chen et al, 1997; Y. Wang, 1989; Zhu et al, 2003), it is generally agreed that the early‐Holocene sea level rose rapidly after the last glacial period, and the rate of sea‐level rise slowed down until about 7.5–7.0 ka B.P., with the sea level close to the present level (Figure 2) (Z. Y. Chen & Stanley, 1998; Lambeck et al, 2014; Song et al, 2013; Xie & Yun, 2012; J. Zhang et al, 1982; Zhao et al, 1979; Zong, 2004). This marked a large‐scale transition from the marine to terrestrial sedimentation environment.…”

Section: Regional Settingmentioning

confidence: 98%

“…Wang, 1989;Zhu et al, 2003), it is generally agreed that the early-Holocene sea level rose rapidly after the last glacial period, and the rate of sea-level rise slowed down until about 7.5-7.0 ka B.P., with the sea level close to the present level (Figure 2) (Z. Y. Chen & Stanley, 1998;Lambeck et al, 2014;Song et al, 2013;Xie & Yun, 2012;J. Zhang et al, 1982;Zhao et al, 1979;Zong, 2004).…”

Section: Environmental and Geomorphological Settingsmentioning

confidence: 98%

“…(Z. Y. Chen & Stanley, 1998;Lambeck et al, 2014;Song et al, 2013;Xie & Yun, 2012;J. Zhang et al, 1982;Zhao et al, 1979;Zong, 2004), which also led to a slower sedimentation rate.…”

Section: Evolution Of Geomorphology and Hydrology In The Hangjiahu Plainmentioning

confidence: 99%

“…It enjoyed an unprecedented level of agricultural intensification and craft development, which sustained the construction and operation of its enormous urban center and hydraulic system (Liu et al, 2014; Z. H. Zhang, 2004). As one of the core distribution areas of the Liangzhu culture, the southern Taihu Lake plain, or to be more specifically, the Hangjiahu (“Hang” refers to “Hangzhou City,” “Jia” refers to “Jiaxing City,” and “Hu” refers to “Huzhou City”) Plain in the lower reaches of the Yangtze River is highly susceptible to Holocene climate and environmental vagaries caused by changes in East Asian monsoon intensity (An, 2000; Sun & Chen, 1991; Wenxiang & Tungsheng, 2004) and sea level fluctuations (Z. Y. Chen & Stanley, 1998; Song et al, 2013; Xie & Yun, 2012; Zhao et al, 1979; Zong, 2004). Recently, there has been a growing interest in the scientific quest for the environmental factors that might be linked to the rise and fall of the Liangzhu Civilization.…”

Section: Introductionmentioning

confidence: 99%

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A 7000‐year record of environmental change: Evolution of Holocene environment and human activities in the Hangjiahu Plain, the lower Yangtze, China

Zhao

Jin

et al. 2022

Geoarchaeology

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The Hangjiahu Plain in the lower Yangtze is one of the core areas that sustained the flourishment of the Liangzhu Civilization. This study reconstructed Holocene environmental change on the Hangjiahu Plain based on a sediment core collected from the Tangqi ZK-3 location situated on the low-lying Hangzhou-Taihu region of the Yangtze Delta. We applied OSL dating, grain size analysis, pollen analysis, and magnetic susceptibility to reconstruct Holocene environmental change and compared our data with other published results. Our results showed that (i) before ~7.0 ka B.P., the ZK-3 core recorded a strong hydrodynamic force, resulting in the widespread deposition of light grayish silt clay or clayey silt in the region. The climate was warm and humid,

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Section: Discussionmentioning

confidence: 99%

Section: Regional Settingmentioning

confidence: 98%

Section: Environmental and Geomorphological Settingsmentioning

confidence: 98%

“…(Z. Y. Chen & Stanley, 1998;Lambeck et al, 2014;Song et al, 2013;Xie & Yun, 2012;J. Zhang et al, 1982;Zhao et al, 1979;Zong, 2004), which also led to a slower sedimentation rate.…”

Section: Evolution Of Geomorphology and Hydrology In The Hangjiahu Plainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A 7000‐year record of environmental change: Evolution of Holocene environment and human activities in the Hangjiahu Plain, the lower Yangtze, China

Zhao

Jin

et al. 2022

Geoarchaeology

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A historical review of sediment export–import shift in the North Branch of Changjiang Estuary

Guo

Xie

et al. 2021

Earth Surf Processes Landf

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Net sediment transport is predominantly seaward in fluvial-dominated estuaries worldwide. However, a distributary branch in the Changjiang Estuary, the North Branch, undergoes net landward sediment transport, which leads to severe channel aggradation. Its controlling mechanism and the role of human activities remain insufficiently understood, although such knowledge is necessary for better management and restoration opportunities. In this study we revisit the centennial hydromorphodynamic evolution of the North Branch based on historical maps, field data, and satellite images and provide a synthesis of the regime change from ebb to flood dominance. The North Branch was once a major river and ebb-dominant distributary channel. Within which alternative meandering channels and sand bars developed. Deposition of river-borne sediment leads to infilling of the branch, while tidal flat embankment reduces the bankfull width and modifies the channel configuration, resulting in a profound decline in the sub-tidal flow partition rate. The North Branch then becomes tide-dominant with an occurrence of tidal bores and elongated sand ridges. Once tidal dominance is established, extensive tidal flat reclamation enhances the funnel-shaped planform, amplifying the incoming tides and initiating a positive feedback process that links tidal flat loss, sediment import, and channel aggradation. Overall, the shift in branch dominance is a combined result of a natural southeastward realignment of the deltaic distributary channels and extensive reclamation. One management option to mitigate channel aggradation is to stop the aggressive reclamation and allow tidal flats to build up, which might reduce the sediment import and eventually lead to a morphodynamic equilibrium in the longer term. Understanding the impact of tidal flat reclamation is informative for the management of similar tidal systems under strong human interference.

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Response of storm surge and M2 tide to typhoon speeds along coastal Zhejiang Province

et al. 2023

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Sea-level Rise Impacts on the Saline Water Intrusion and Stratification of the Yangtze Estuary

Cited by 7 publications

References 0 publications

A 7000‐year record of environmental change: Evolution of Holocene environment and human activities in the Hangjiahu Plain, the lower Yangtze, China

A 7000‐year record of environmental change: Evolution of Holocene environment and human activities in the Hangjiahu Plain, the lower Yangtze, China

A historical review of sediment export–import shift in the North Branch of Changjiang Estuary

Response of storm surge and M2 tide to typhoon speeds along coastal Zhejiang Province

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