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Long-Term Coastal Evolution and Morphodynamics: Ecosystem Protection and Coastal Safety

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Oceans and Coastal Zones".

Deadline for manuscript submissions: 25 August 2025 | Viewed by 535

Special Issue Editors


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Guest Editor
Tianjin Center (North China Center of Geoscience Innovation), China Geological Survey (CGS), Tianjin 300170, China
Interests: geo-environmental evolution; Holocene sea-level changes; modern sedimentation; ecological protection; geological safety

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Guest Editor
College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
Interests: coastal evolution; sea level change; monsoon climate change; quaternary environmental change; coastal hazards

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Guest Editor
School of Ocean Sciences, China University of Geosciences, Beijing 100083, China
Interests: geo-environmental evolution; sedimentation; quaternary geology; geochronology
Special Issues, Collections and Topics in MDPI journals

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Guest Editor Assistant
College of Civil Engineering, Fuzhou University, Fuzhou 350108, China
Interests: estuarine and coastal evolution; coastal hazards; water resources assessment; sediment transport; machine learning

Special Issue Information

Dear Colleagues,

Coastal regions are characterized by their flourishing economies and well-developed societies. Nevertheless, their geological environments are notably fragile. In the context of global climate change, human activities have caused sea-level rise and a decline in river flow; coastal areas are confronted with immense geological–environmental pressures.

This Special Issue aims to provide readers with information on the latest research progress in the field of long-term coastal evolution, including (but not limited to) delta transgression and regression, Holocene sea-level change, coastal and shallow-sea morphodynamics, tidal flat and wetland ecosystem adaptations, shoreline migrations, etc. The goal of this Special Issue is to explore the patterns and driving mechanisms of natural succession at different scales and to support the development of nature-based solutions for ecosystem protection and coastal safety recommendations.

Dr. Fu Wang
Dr. Fengling Yu
Dr. Yan Li
Dr. Xiaohe Lai
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • coastal evolution
  • transgression
  • Holocene sea-level change
  • coastal wetland
  • shoreline change
  • ecosystem protection
  • coastal safety

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Published Papers (2 papers)

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Research

16 pages, 4926 KiB  
Article
Study on Characteristics of the Water Diversion Ratio and Impact of the Diversion Dyke at South and North Ports of the Minjiang River During Wet Season
by Cheng Chen, Weijia Yang, Zhihui Wang, Kailong Huangfu, Feng Cai, Haoyan Chen and Youlin Chen
Water 2025, 17(8), 1183; https://doi.org/10.3390/w17081183 - 15 Apr 2025
Viewed by 180
Abstract
The hydrodynamic processes in estuarine regions play a crucial role in the morphological and ecological stability of coastal zones. As a key hydrodynamic characteristic of bifurcated rivers, the water diversion ratio (WDR) influences flow distribution, sediment transport, and shoreline changes in estuaries. This [...] Read more.
The hydrodynamic processes in estuarine regions play a crucial role in the morphological and ecological stability of coastal zones. As a key hydrodynamic characteristic of bifurcated rivers, the water diversion ratio (WDR) influences flow distribution, sediment transport, and shoreline changes in estuaries. This study focuses on the lower Minjiang River and employs a MIKE 21-based two-dimensional hydrodynamic model to quantify the WDR variations between the South and North Ports on the scale of a tidal cycle during the wet season and to reveal the regulatory effects of diversion dyke length and angle. The results indicate that the WDR of the North Port exhibits significant variation with tidal stages. The WDR of the North Port increases with the length of the diversion dyke. The current 110 m-long dyke has little effect on regulating water flow between the North and South Ports, and its WDR remains unaffected by changes in angle. In contrast, a 450 m-long dyke is highly sensitive to angle variations. This study not only provides scientific support for channel regulation in the lower Minjiang River but also offers indirect insights into shoreline stability and ecological management under the combined influence of human activities and natural processes in estuarine environments. Full article
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18 pages, 7353 KiB  
Article
Spatial and Temporal Shifts and Driving Mechanisms of Embodied Carbon in Water Transport Trade in BRICS Countries
by Shanshan Zheng, Cheng Chen and Peng Qiu
Water 2025, 17(7), 1070; https://doi.org/10.3390/w17071070 - 3 Apr 2025
Viewed by 214
Abstract
From an ecological protection perspective, clarifying the spatial and temporal transfer characteristics of embodied carbon in water transport trade among BRICS countries and its driving mechanisms is of great significance for the precise formulation of emission reduction policies. This study integrates the multi-regional [...] Read more.
From an ecological protection perspective, clarifying the spatial and temporal transfer characteristics of embodied carbon in water transport trade among BRICS countries and its driving mechanisms is of great significance for the precise formulation of emission reduction policies. This study integrates the multi-regional input–output model with the LMDI decomposition method to quantitatively analyze the bi-directional flow of embodied carbon in water transport trade among BRICS countries from 1995 to 2018, along with its spatio-temporal differentiation patterns. The driving mechanisms are decomposed across three dimensions: scale, structure, and intensity. By adopting a dual perspective of time-series and spatial correlation, the study systematically uncovers the cross-regional transfer patterns of embodied carbon emissions in water transport trade and examines the interaction pathways of various effects throughout their dynamic evolution. The study finds that (1) the embodied carbon in water transport trade among BRICS countries shows a trend of transnational transfer, with China being the largest net exporter (35.15 Mt in 2018), India and South Africa as net importers (−32.00 Mt and −1.89 Mt in 2018, respectively), and Brazil and Russia shifting from net importers to net exporters; (2) from a temporal perspective, the scale effect drives the growth of embodied carbon emissions (contribution values: 1.23~119.72 Mt for export trade; 4.88~34.36 Mt for import trade), while the intensity effect has a suppressive role (contribution values: −59.08~−1.48 Mt for export trade; −20.56~−5.31 Mt for import trade), and the structural effect is complex in its impact on emissions (contribution values: −17.72~0.45 Mt for export trade; −6.84~13.93 Mt for import trade). Optimizing the trade structure can help reduce carbon emissions; (3) from a spatial perspective, carbon emissions are higher in Southeast Asia and the Northern Hemisphere, and changes in China’s carbon emissions (total effect in 2018: 57.01 Mt in export trade and 7.98 Mt in import trade) significantly affect other BRICS countries. Based on the conclusions of the study, it is suggested that BRICS countries should strengthen cooperation to achieve regional emission reduction targets by optimizing the trade structure of water transport, promoting energy structure reforms, advancing green transport technologies and equipment, and establishing a carbon emission regulatory system. Full article
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