Article
Multidisciplinary Sciences
Xing Wei, Shuqun Cai, Weikang Zhan
Summary: The development and human activities in the Pearl River Estuary (PRE) in recent decades have led to a decrease in tidal flat and water areas, advancing coastline, and declining water volume. Land reclamation is the main reason, while activities such as channel dredging, sand mining, and dam construction have also impacted the estuary's morphology.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Civil
Huayang Cai, Bo Li, Erwan Garel, Haidong Pan, Tongtiegang Zhao, Feng Liu, Yuting Ma, Suying Ou
Summary: Understanding the impact of river discharge on tide-river dynamics is crucial for effective water management in estuarine environments. This study proposes a data-driven model to quantify this impact using long-term water level observations along a river estuary. The model shows good correspondence with measurements and can effectively separate the contributions of river discharge and tidal forcing on water levels. This approach is applicable to other estuaries with significant effects of river discharge on tide-river dynamics.
JOURNAL OF HYDROLOGY
(2023)
Article
Oceanography
Jun Wang, Yan Tong, Lian Feng, Dan Zhao, Chunmiao Zheng, Jing Tang
Summary: By analyzing data collected from two field surveys in the Pearl River Estuary of China, this study found that water turbidity is significantly decreasing at a rate of 0.11 nephelometric turbidity units (NTU) per year. This decline is linked to sea-level rise and the retreat of estuarine turbidity maxima (ETMs), both effects resulting from similar processes such as urbanization. Furthermore, a high correlation between water turbidity and salinity was observed, which could facilitate monitoring of saltwater intrusions in the region.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Geography, Physical
Junjie Deng, Congrui Chen, Hongze Yu
Summary: A thorough understanding of the evolutionary trends of river bifurcation channels is crucial for effective estuarine management. This study uses historical bathymetric data and numerical experiments to develop a conceptual model that explains the morphological evolution of river mouth channels. The model shows that the angle of incoming tides plays a significant role in the evolution of river mouth channels dominated by suspended sediment transport.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Geosciences, Multidisciplinary
Xiaoqiang Yang, Shuang Wu, Shentang Shang, Yan Chen
Summary: This study selected a core in the Pearl River Delta to investigate the influence of tropical processes and human activities on river discharge and sediment load. By using paleosecular variations and radiocarbon dating, a chronology was established. The magnetic fabric results showed that deposition was influenced by weak energy from El Nino-Southern Oscillation activity and high energy from tropical storms. Additionally, higher sediment flux was introduced by increasing human activity.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Biodiversity Conservation
Yiran Ouyang, Yanpeng Cai, Yulei Xie, Wencong Yue, Hongjiang Guo
Summary: An integrated approach combining systems dynamics, catastrophe progression, and coupled coordination degree analysis was developed to study the relationships between water-energy-food systems and economic systems. The approach was validated in the Urban Agglomerations of Pearl River Delta City Cluster in China, revealing significant temporal and spatial differences in coordination. The results highlighted the need for policies tailored to the characteristics of cities to reduce regional imbalances.
ECOLOGICAL INDICATORS
(2021)
Article
Engineering, Civil
Xiaoqi Chen, Minghui Yu, Changjie Liu, Ruipu Wang, Wei Zha, Haoyong Tian
Summary: This study applied graph theory to analyze the characteristics of the Pearl River Delta river network. It found that while there was little change in topological complexity, there were significant adjustments in dynamic complexity and vulnerability, mainly due to human-induced riverbed downcutting.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Civil
Zhenyan She, Liyan Huang, Huayang Cai, Mintao Fan, Longfei Yu, Bo Li, Xin Lan, Xiaohong Chen, Zhiyong Liu
Summary: The Pearl River Delta is a highly urbanized area facing increasing flooding hazards due to climate change and human interventions. It is important to accurately estimate the risk of extreme water levels in downstream channels by considering the spatial dependence between multiple upstream floods and downstream water levels. This study presents the HDCP approach, which captures the probabilistic dependence behavior and provides reliable estimations of extreme water levels and affected areas.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Xia Li, Yanzi Cai, Zezheng Liu, Xiaobiao Mo, Li Zhang, Cheng Zhang, Baoshan Cui, Ze Ren
Summary: This study analyzed long-term observational data to investigate the variability of tidal dynamics in the Pearl River Estuary. The results showed significant spatial-temporal variability in tidal variables, which were influenced by estuarine geomorphology, river discharge, and sea-level rise.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Marine & Freshwater Biology
Shikun Hu, Bingjun Liu, Maochuan Hu, Xuan Yu, Zhihong Deng, Hui Zeng, Mingzhu Zhang, Dan Li
Summary: The study focuses on the adverse effects of climate change-induced storm surges and compound flood events on estuaries. Using the ADCIRC + SWAN coupled model, various scenario simulations based on Super Typhoon Hato were conducted to understand the nonlinear interactions between tide, surge, and river during extreme events. The results show that tide-surge phases, typhoon tracks and wind speeds, and upstream runoff all contribute to extreme water levels through different nonlinear interactions. The study emphasizes the dominant role of tide-surge phases and highlights the exacerbation of nonlinear effects with increasing typhoon wind speeds and upstream discharges.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Environmental Sciences
Xiaoyu Jian, Shuwen Zhang, Qibin Lao, Fajin Chen, Peng Huang, Chunqing Chen, Qingmei Zhu
Summary: This study used stable water isotopes combined with temperature-salinity profiles to quantitatively understand the mixing of water masses in the Pearl River Estuary and the adjacent northern South China Sea. It identified three different water masses and found that their mixing processes varied across different water layers and regions.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Yu -Lin Chen, Lin-Shuang Zhao, Annan Zhou, Shui-Long Shen
Summary: This paper presents a case study on the hazards of red tides in the Pearl River Estuary. Data on red tide hazards, meteorology, and seawater monitoring were collected from 1996 to 2020 in different locations around the estuary to investigate the factors influencing red tide occurrences. The ASSETS method was used to evaluate the effects of meteorological factors and seawater eutrophication on the risk level of red tides. The study established a framework for red tide risk assessment and identified external and internal factors contributing to red tide formation.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yi Ding, Jian Yin, Hongtao Jiang, Ruici Xia, Bin Zhang, Xinyuan Luo, Danqi Wei
Summary: This study uses the Pearl River Delta urban agglomeration as a case study to analyze carbon emissions and design emission reduction strategies using multi-scale geographically weighted regression and system dynamics model. The results show that the carbon peak of the entire urban agglomeration will be reached by 2025, and comprehensive carbon emission reduction policies are more effective.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Yuan Gao, Zini Lai, Chao Wang, Haiyan Li, Yongzhan Mai
Summary: Studying the population characteristics of Brachionus calyciflorus can help monitor water pollution, with environmental factors significantly influencing its abundance. The distribution characteristics of B. calyciflorus can reflect water pollution and aid in evaluating water quality.
Article
Biodiversity Conservation
Xia Zhan, Dan Liang, Xi Lin, Leiguang Li, Chentao Wei, Caroline Dingle, Yang Liu
Summary: In urban areas with elevated noise levels, Oriental Magpie-robins sing at higher frequencies, indicating a response to the masking effect of noise pollution. However, other song features such as song length, syllable rate, and transitions were unaffected by noise level or urbanization. The study suggests that urbanization and noise pollution may induce spectral modifications in birdsongs, but not temporal and structural changes.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Oceanography
Ha-Kyung Kim, In-Hwan Cho, Eun-A Hwang, Young-Hyo Kim, Jeong-Suk Moon, Bae-Kyung Park, Baik-Ho Kim
Summary: This study investigated the distribution of diatoms in 324 estuaries on the Korean Peninsula from 2016 to 2018, with a focus on the ecological impact of artificial dams. The results highlighted the complex interactions between dams, land use, and diatom communities, providing important data for ecosystem management and biodiversity conservation. Understanding the consequences of artificial dams on diatom distribution is crucial for preserving estuarine health.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Tianhang Gao, Jia Tian, Chuan Huang, Hongyu Wu, Xing Xu, Changjian Liu
Summary: This study explores the microcontainer transport service and route selection problem within the context of a new transportation corridor. A multiobjective planning model is established to minimize transportation cost, time, and carbon emissions. The findings demonstrate that the New Western Land and Sea Corridor is appealing for time-sensitive cargoes and can enhance economic benefits with supportive policies.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Jintao Ma, Zhengjie Wu, Mengqian Guo, Qiuguang Hu
Summary: With the deepening of economic globalization and regional economic integration, marine fisheries are becoming increasingly connected to national strategic interests and economic vitality. It is necessary to explore the synergistic evolution of marine fisheries economic development, environmental protection, and technological progress in order to promote sustainable and healthy development of marine fisheries.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Wenhan Ren, Yuhan Xu, Jing Ni
Summary: This paper focuses on the key role of human economic activities in the evolution of ecological security from the perspective of eco-industrial symbiosis and constructs a symbiotic system of indicators considering human economic activities and all subsystems. The research findings reveal that in China's coastal areas, the socio-economic development index shows a stable upward trend, the environmental capacity index remains stable, and the ecological impact index shows a fluctuating and undulating trend.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Xiao Zhou
Summary: This study develops a spatial risk assessment approach for maritime transportation in China using machine learning and geospatial big data. The study identifies wave height, rainfall, and sea surface temperature as the most influential factors affecting navigational safety. It also analyzes the matching relationship between coastal search and rescue resources and maritime transportation risks.
OCEAN & COASTAL MANAGEMENT
(2024)
Review
Oceanography
X. Yang, Z. Y. Lin, W. J. Zhang, S. Xu, M. Y. Zhang, Z. D. Wu, B. Han
Summary: The study highlights the increasing importance of Arctic navigation safety and identifies gaps in the application of risk assessment methodologies. It calls for decision-oriented modelling techniques and bridging the gap between academic research and practical application.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Vladimir J. Alarcon, Anna C. Linhoss, Christopher R. Kelble, Paul F. Mickle, Alexandra Fine, Enrique Montes
Summary: Estuaries and coastal areas are undergoing rapid changes due to climate change and sea level rise. This research presents a salinity transport model for Biscayne Bay and investigates the potential impacts of altered precipitation, increased salinity/temperature, and sea level rise on bay salinity. The findings suggest that current restoration plans may not be sufficient to maintain current salinity conditions, and management measures such as urban greening, artificial groundwater recharge, and water consumption reduction should be considered.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Manuel Vargas-Yanez, Ana Reeves-Bueno, Sara Fernandez-Topham, Francina Moya, Enrique Ballesteros, Cristina Alonso, Teresa Perez-Sanchez, Patricia Romero-Fernandez, Silvia Sanchez-Aguado, Ricardo Felix Sanchez-Leal, M. Carmen Garcia-Martinez
Summary: This study analyzed the phytoplankton communities in the upper 100 m of the Gulf of Cadiz and the Alboran Sea using time series data. The results show that these two regions can be considered as two differentiated bioregions, with the latter having higher productivity.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Donna Dimarchopoulou, Ioannis Keramidas, Konstantinos Tsagarakis, Vasiliki Markantonatou, Ghassen Halouani, Athanassios C. Tsikliras
Summary: The study shows that spatiotemporal simulation modeling is an effective tool for investigating management options in ecosystem-based fisheries management. It demonstrates that fisheries restricted areas can help rebuild the biomass of exploited stocks, but their effectiveness depends on the size and location of the areas. The study also suggests that a parallel reduction in total fishing effort is necessary to achieve the highest benefits of protection.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Junita D. Karlsen, Ludvig Ahm Krag, Bent Herrmann
Summary: Fisheries management is transitioning from a single-species approach to an ecosystem-based approach to address the complexities of mixed-species fisheries. A dual compartment codend concept can provide a complex selectivity profile and allow for flexible adjustments at sea, improving compliance with management objectives.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Yi-Zhuo Zhang, Cheng Xue, Na Wang, Gang Chen
Summary: This paper evaluates typical coastal provinces and cities in China, constructing an evaluation indicator system and clarifying the regional differences in the sustainable development capacity of China's marine fisheries industry. The results show that Shandong Province and Fujian Province have advantages in sustainable development, while Tianjin, Hebei Province, and Shanghai have room for improvement.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Caimao Tan, Tiantian Qin, Junliang He, Yu Wang, Hang Yu
Summary: This study addresses the storage space allocation problem of container yards based on the dual-cycle operation mode. A mixed integer programming model is established to optimize container transportation distance. The results show that dual-cycle operation can decrease transportation distance and the space allocation method based on it is more effective than traditional methods. The study also provides management insights for container ports and suggests effective solutions for bottleneck problems.
OCEAN & COASTAL MANAGEMENT
(2024)
Article
Oceanography
Haye H. Geukes, Peter M. van Bodegom, Alexander P. E. van Oudenhoven
Summary: This study aims to identify and explore the information requirements at different stages of the decision-making process of coastal nature-based solutions (NbS). The study found substantial differences in information requirements across the decision-making stages, with values and indicators becoming more specific and concrete as the stages progressed. The study also suggests that future changes in the information required for decision-making on coastal NbS can be anticipated and prepared for.
OCEAN & COASTAL MANAGEMENT
(2024)