Ocean & Coastal Management最新文献_第2页

Mapping the complex web of policies for seaweed industry development in Indonesia: What is the role of a national roadmap? 绘制印度尼西亚海藻产业发展政策的复杂网络：国家路线图的作用是什么？

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-10 DOI: 10.1016/j.ocecoaman.2024.107464

Risti Permani , Yanti N. Muflikh , Fikri Sjahruddin

Governments across the globe have used a top-down approach through the launch of national roadmaps toward promoting sectoral development in the aquaculture sector. Understanding the policy complexity is critical for ensuring effective governance and creating a conducive investment climate. Learning from Indonesia's first-ever national seaweed roadmap outlined in Presidential Regulation 33–2019 and other policies, this study deploys a multi-step approach combining a policy review, semi-structured government and industry interviews, and a focus group discussion to review complex regulatory levels and policy areas influencing the seaweed industry. Specifically, it identifies, maps, and synthesises the country's multi-layers of policies from national to regional levels, across diverse critical policy areas such as coastal management, aquaculture and fisheries; trade, investment, and industry; and food and consumers through compiling a total of 67 policy documents. The study highlights the significant role of the country's national seaweed roadmap in reviving stakeholders' interest and shifting policy direction towards more targeted seaweed-specific policies. Challenges such as the decentralisation process, marine zoning, value chain, market, and investment dynamics, and the need for policy harmonisation exist. Nevertheless, there is strong support for continuing a national approach coupled with increased stakeholder engagement, improved monitoring and evaluation, and improved policy coordination. Moreover, a coherent policy approach within the broader scope of coastal management, aquaculture and fisheries and critical areas such as trade, investment and industry, youth and gender inclusiveness, as well as alignment with Indonesia's broader blue economy framework should be explored toward ensuring a sustainable and inclusive seaweed industry growth.

全球各国政府采用自上而下的方法，通过推出国家路线图来促进水产养殖业的部门发展。了解政策的复杂性对于确保有效治理和创造有利的投资环境至关重要。本研究借鉴印尼有史以来首个国家海藻路线图（第33-2019号总统条例）和其他政策，采用多步骤方法，结合政策审查、半结构化政府和行业访谈以及焦点小组讨论，审查影响海藻产业的复杂监管层面和政策领域。具体而言，该研究通过汇编总共 67 份政策文件，确定、绘制和综合了该国从国家到地区层面的多层次政策，涉及沿海管理、水产养殖和渔业；贸易、投资和工业；以及食品和消费者等多个关键政策领域。研究强调了该国的国家海藻路线图在唤起利益相关者的兴趣以及将政策方向转向更有针对性的海藻专项政策方面所发挥的重要作用。目前存在的挑战包括权力下放进程、海洋区划、价值链、市场和投资动态以及政策协调的必要性。不过，人们强烈支持继续采用国家方法，同时加强利益相关者的参与，改进监测和评估，并加强政策协调。此外，还应在沿海管理、水产养殖和渔业以及贸易、投资和工业、青年和性别包容性等关键领域的更大范围内探索协调一致的政策方法，并与印尼更广泛的蓝色经济框架保持一致，以确保海藻产业的可持续和包容性增长。

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引用次数: 0

A systematic review of fish trade and its impact on economic progress: Barriers, opportunities, and outlook for developing countries 对鱼类贸易及其对经济进步的影响进行系统审查：发展中国家的障碍、机遇和前景

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-10 DOI: 10.1016/j.ocecoaman.2024.107471

Ehsan Elahi , Yuge Li , Ali Md Emam , Min Zhu , Indubala Krishnan

This study conducts a comprehensive evaluation of fishery commerce effects, with a particular emphasis on developing nations, through a systematic literature review and desk research from 2012 to 2024. The study provides a detailed assessment of the fish trade landscape in these regions by analyzing existing data, official documents, and empirical research. The research reveals a growing global demand for fish, driven by changing dietary preferences and increased health awareness. However, significant challenges impede the sustainable development of the fisheries sector in developing countries. Despite these obstacles, data visualization demonstrates a remarkable increase in developing countries' participation in the global fish market in terms of value and volume. The study identifies substantial untapped potential for these nations to expand their fisheries industry, thereby fostering broader economic growth. Realizing this potential requires a strong emphasis on sustainability, achievable through modernization, stringent regulations, infrastructure improvements, and biodiversity preservation to secure long-term marine investments. The research underscores the importance of engaging all stakeholders in the fishing industry – including workers, shareholders, management bodies, sustainability specialists, and government officials – in developing transparent national and regional policies. This inclusive approach facilitates open dialogue about objectives and necessary trade-offs. The study concludes that sustainable practices and policies in the fish and fisheries sector must be carefully tailored to the specific limitations and advantages of developing countries to ensure balanced and favorable outcomes in future scenarios.

本研究通过系统的文献综述和案头研究，对2012年至2024年的渔业贸易效应进行了全面评估，重点是发展中国家。研究通过分析现有数据、官方文件和实证研究，对这些地区的水产品贸易状况进行了详细评估。研究显示，在饮食偏好改变和健康意识提高的推动下，全球对水产品的需求不断增长。然而，巨大的挑战阻碍了发展中国家渔业部门的可持续发展。尽管存在这些障碍，但可视化数据显示，发展中国家参与全球水产品市场的价值和数量显著增加。研究发现，这些国家在扩大渔业产业，从而促进更广泛的经济增长方面还有大量潜力尚未开发。要实现这一潜力，就必须高度重视可持续性，通过现代化、严格监管、改善基础设施和保护生物多样性来确保长期海洋投资。研究强调了让渔业的所有利益相关者（包括工人、股东、管理机构、可持续发展专家和政府官员）参与制定透明的国家和地区政策的重要性。这种包容性的方法有利于就目标和必要的权衡进行公开对话。研究得出结论，鱼类和渔业领域的可持续做法和政策必须根据发展中国家的具体限制和优势进行仔细调整，以确保在未来情况下取得平衡和有利的结果。

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引用次数: 0

Ecosystem carbon accumulation of Sonneratia apetala mangroves along an afforestation chronology in Bangladesh 孟加拉国 Sonneratia apetala 红树林生态系统碳积累的植树造林年表

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-09 DOI: 10.1016/j.ocecoaman.2024.107466

Sajib Ahmed , Md Lokman Hossain , Sujit Kumar Roy , Jianfeng Li , Mohammed Abdus Salam

Coastal plantation ecosystems play a vital role in the protection of coastal regions, biodiversity conservation, and the provision of valuable ecosystem services. These ecosystems have been recognized for their capacity to sequester carbon, making them instrumental in mitigating global warming. In this study, we assessed ecosystem carbon (EC) density levels in Sonneratia apetala planted coastal ecosystems in the Char Kukri-Mukri and Montaz mangrove reserves in the south-central Bangladesh. Using 48 representative plots from four stand ages (8–32 years), carbon density changes in trees and soil (0–15 and 15–30 cm) were evaluated. Results showed significant differences in vegetation carbon (VC) density, soil organic carbon (SOC) concentration, SOC density, and EC density among different stand ages, soil depths and mangroves. The increased EC density in Char Kukri Mukri (12.21 t ha⁻¹ yr⁻¹) and in Char Montaj (12.62 t ha⁻¹ yr⁻¹) with advancing stand ages (year-8 to year-32) provides empirical evidence of the effectiveness of afforestation in enhancing EC density in S. apetala planted mangroves. Regardless of stand age, the higher SOC density found in the upper soil layer (51 t ha⁻¹ in year-32 stand) compared to the lower layer (38 t ha⁻¹ in year-32 stand) in both mangroves highlights that the majority of soil carbon is concentrated in the top 15 cm of the forest floor. Within the 0–30 cm soil layer, SOC density demonstrated an increasing trend, with rates of 1.30 t ha⁻¹ yr⁻¹ in Char Montaj, and 1.33 t ha⁻¹ yr⁻¹ in Char Kukri Mukri mangroves between year-8 and year-32 stands. This study provides valuable insights for policymakers, land managers, and conservation practitioners, emphasizing the significance of coastal plantation ecosystems in carbon sequestration and the need for informed management strategies to optimize their climate mitigation potential.

沿海种植园生态系统在保护沿海地区、保护生物多样性和提供宝贵的生态系统服务方面发挥着至关重要的作用。这些生态系统的固碳能力已得到认可，使其在减缓全球变暖方面发挥了重要作用。在这项研究中，我们评估了孟加拉国中南部 Char Kukri-Mukri 和 Montaz 红树林保护区内种植的 Sonneratia apetala 沿海生态系统的生态系统碳密度水平。利用四个林龄（8-32 年）的 48 个代表性地块，对树木和土壤（0-15 厘米和 15-30 厘米）中的碳密度变化进行了评估。结果表明，不同树龄、土壤深度和红树林的植被碳密度、土壤有机碳浓度、土壤有机碳密度和导电率密度存在明显差异。Char Kukri Mukri（12.21 吨/公顷-年-1）和 Char Montaj（12.62 吨/公顷-年-1）的导电率密度随着林龄（第 8 年至第 32 年）的增加而增加，这为植树造林有效提高 S. apetala 种植红树林的导电率密度提供了实证证据。无论林分年龄如何，两种红树林土壤上层的 SOC 密度（第 32 年林分的 51 吨/公顷-1）均高于下层（第 32 年林分的 38 吨/公顷-1），这说明土壤碳大部分集中在林地顶部 15 厘米处。在 0-30 厘米土层中，SOC 密度呈上升趋势，在 Char Montaj 和 Char Kukri Mukri 红树林中，在第 8 年和第 32 年之间，SOC 密度分别为 1.30 吨/公顷-年和 1.33 吨/公顷-年。这项研究为政策制定者、土地管理者和保护工作者提供了宝贵的见解，强调了沿海种植园生态系统在固碳方面的重要性，以及制定明智的管理策略以优化其气候减缓潜力的必要性。

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引用次数: 0

Resilience in maritime logistics: Theoretical framework, research methodology, and indicator system 海运物流的复原力：理论框架、研究方法和指标体系

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-09 DOI: 10.1016/j.ocecoaman.2024.107465

Kevin X. Li , Hao Wang , Yang Yang , Mengchi Li

Maritime logistics, essential for global trade, faces increasing vulnerability due to operational complexity and disruptions such as extreme weather, geopolitical conflicts, and pandemics. Although maritime logistics resilience (MLR) has garnered growing attention, the field still lacks a unified theoretical framework and standardized evaluation indicator system, exposing a significant research gap. This study seeks to fill this gap by conducting a systematic review of 163 papers from Scopus, Web of Science, and Google Scholar, covering the period from 2009 to August 2023. The study defines maritime logistics resilience, identifies its four key attributes—robustness, vulnerability, redundancy, and rapidity—and explores their interrelationships, establishing a theoretical framework. Based on this foundation, an innovative evaluation indicator system is proposed for the first time, designed to assess resilience across the three main clusters of the maritime logistics system: ports, shipping networks, and the maritime supply chain. The proposed framework and indicator system provide a novel, comprehensive approach to evaluating MLR, offering both theoretical contributions and practical tools for industry practitioners. This research fills a critical gap in the field and lays the groundwork for future empirical studies and policy development.

海运物流对全球贸易至关重要，但由于操作的复杂性以及极端天气、地缘政治冲突和大流行病等干扰因素，海运物流面临着越来越大的脆弱性。尽管海运物流复原力（MLR）已获得越来越多的关注，但该领域仍然缺乏统一的理论框架和标准化的评估指标体系，暴露出巨大的研究空白。本研究试图通过对 Scopus、Web of Science 和 Google Scholar 的 163 篇论文进行系统综述来填补这一空白，时间跨度为 2009 年至 2023 年 8 月。本研究对海运物流复原力进行了定义，确定了其四个关键属性--稳健性、脆弱性、冗余性和快速性，并探讨了它们之间的相互关系，从而建立了一个理论框架。在此基础上，首次提出了一个创新的评估指标体系，旨在对海运物流系统的三大集群（港口、航运网络和海运供应链）进行复原力评估。建议的框架和指标体系为评估多式联运提供了一种新颖、全面的方法，为行业从业人员提供了理论贡献和实用工具。这项研究填补了该领域的一个重要空白，为未来的实证研究和政策制定奠定了基础。

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引用次数: 0

The evolution and effectiveness of China's marine carbon sink fishery policies 中国海洋碳汇渔业政策的演变与成效

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-09 DOI: 10.1016/j.ocecoaman.2024.107470

Yan Wang , Yang Yang , Xuqian Hu

The marine carbon sink fishery (MCSF) is an innovative and sustainable development model that integrates carbon sinks with fisheries. The Chinese government has actively promoted this concept by issuing a series of related policies. This study systematically reviewed China's MCSF policies using both quantitative and qualitative analyses to examine their evolution, characteristics, and effectiveness. Through a comprehensive analysis of 135 MCSF policies issued by various levels of government in China's coastal areas from 1985 to 2023, three developmental stages were identified: the initial exploration period (1985–2009), the rapid development period (2010–2015), and the optimization and adjustment period (2016–2023). The characteristics of policy evolution were mainly reflected in three aspects. First, the issuance power and functioning power of policies exhibited a growing trend. Second, the promulgators of policies were mainly local governments, with a trend towards diversification. Third, support for scientific research and skills development has gradually been strengthened. The results of a fixed-effects model showed that policy power had a significant positive impact on the development of MCSFs, with high-intensity policies promoting their healthy growth. In the future, newly formulated policies should prioritize establishing a multi-channel, multi-level funding system, advancing the integration of digital technology, enhancing the carbon trading mechanism, and establishing a comprehensive management platform for smart MCSFs.

海洋碳汇渔业（MCSF）是一种将碳汇与渔业相结合的创新型可持续发展模式。中国政府积极推广这一理念，出台了一系列相关政策。本研究通过定量和定性分析，对中国的碳汇渔业政策进行了系统梳理，考察了这些政策的演变、特点和成效。通过对 1985 年至 2023 年中国沿海地区各级政府出台的 135 项流域综合管理政策的综合分析，确定了三个发展阶段：初步探索期（1985-2009 年）、快速发展期（2010-2015 年）和优化调整期（2016-2023 年）。政策演变的特点主要体现在三个方面。第一，政策的发布力和作用力呈现不断增强的趋势。第二，政策发布主体以地方政府为主，并呈现多元化趋势。第三，对科研和技能开发的支持力度逐步加强。固定效应模型的结果表明，政策力对中小微企业的发展具有显著的积极影响，高强度的政策促进了中小微企业的健康成长。未来，新制定的政策应优先考虑建立多渠道、多层次的资助体系，推进数字技术的融合，强化碳交易机制，建立智能多中心综合管理平台。

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引用次数: 0

The state of marine debris and microplastic research in India: Bridging knowledge gaps for robust marine litter policy 印度海洋废弃物和微塑料研究现状：缩小知识差距，制定强有力的海洋垃圾政策

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-06 DOI: 10.1016/j.ocecoaman.2024.107418

Karthikeyan Perumal, Suvarna S. Devi, Kurian Mathew Abraham, Appukuttannair Biju Kumar

The escalating global concern surrounding the pervasive issue of marine debris and microplastic pollution in marine environments has been well reflected in India, with marine plastics representing the most frequent persistent materials abundant in the ecosystems and biota. This citation analysis attempted to identify the most frequently cited studies, seminal works, sources, distribution, status and concentration of marine debris and microplastics in the Indian coastal ecosystem and the status of the Clean-Coast Index (CCI) based on the 176 peer-revied papers in Scopus (2013–2023) on marine debris/microplastics. This review further provides an analysis of the assessment of microplastics (MPs) in the marine ecosystem of India, including sources, sampling methods, isolation, characterization, identification, abundance and impacts of microplastics in aquatic life, and the marine litter policy gaps. Reports from the east coast of India are higher in number compared to the West coast during the period, and CCI results indicate that the east coast of India is more polluted than the west coast (extremely dirty > moderate > dirty > clean). The knowledge gap areas identified include the ecological impacts of plastics in the marine environment, the lack of studies on emerging areas such as ‘plastisphere’, and the impacts of marine debris and its chemical contamination on marine biodiversity and chemical contamination. In this evidence-based synthesis of knowledge, we invigorate the discussion on a policy framework for managing marine debris in Indian coastal waters, following global models and commitment to mitigate the impacts of marine litter and microplastics, upstream and downstream management interventions, including promotion of a circular plastic economy and clean production technologies that foster a sustainable coexistence between the developmental needs of worlds' one of the populous country and emerging economy and greening the blue oceans around it.

全球对海洋环境中普遍存在的海洋废弃物和微塑料污染问题的关注不断升级，这在印度也得到了很好的反映，海洋塑料是生态系统和生物群中最常见的持久性材料。本引文分析试图根据 Scopus 中有关海洋废弃物/微塑料的 176 篇同行引用论文（2013-2023 年），确定印度沿海生态系统中海洋废弃物和微塑料最常引用的研究、开创性著作、来源、分布、现状和浓度，以及清洁海岸指数（CCI）的现状。本综述进一步分析了印度海洋生态系统中微塑料 (MPs) 的评估情况，包括微塑料在水生生物中的来源、取样方法、分离、表征、识别、丰度和影响，以及海洋垃圾政策差距。在此期间，印度东海岸的报告数量高于西海岸，CCI 结果表明印度东海岸的污染程度高于西海岸（极度污染；中度污染；污染；清洁）。已确定的知识空白领域包括海洋环境中塑料对生态的影响、缺乏对 "塑料球 "等新兴领域的研究，以及海洋废弃物及其化学污染对海洋生物多样性和化学污染的影响。在这份以证据为基础的知识综述中，我们鼓励讨论管理印度沿海水域海洋废弃物的政策框架，遵循全球模式，致力于减轻海洋垃圾和微塑料的影响，采取上游和下游管理干预措施，包括推广循环塑料经济和清洁生产技术，促进世界人口大国和新兴经济体的发展需求与绿化周围蓝色海洋之间的可持续共存。

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引用次数: 0

Regionalized ensemble estimation of wave periods for assessing wave energy resources across Canada. Part II: Wave-period and wave-energy analyses 用于评估加拿大各地波浪能资源的波浪周期区域化集合估算。第二部分：波浪周期和波浪能分析

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-06 DOI: 10.1016/j.ocecoaman.2024.107458

Cong Dong , Gordon Huang , Guanhui Cheng , Yanpeng Cai , Jinxin Zhu , Shan Zhao

The cornerstone for harnessing and utilizing wave energy resources lies in the precise and thorough estimation and assessment of wave energy fluxes through advanced modeling of wave periods. This study implements the developed macroscale regionalized ensemble wave-period modeling (MREWPM) method to accomplish the initial integrated estimation and analysis of wave periods and wave energy fluxes across Canada, complemented by advanced estimations of wave heights and wind speeds. The results indicate that Canadian wave periods lengthen in shallow, low-backscatter, southern, remote, or eastern waters, and exhibit temporal variability in breezy, low-backscatter, southern, remote, or eastern regions. The trend of wave periods exhibited fluctuations, decreasing before and increasing after the trough (9.06 s in 2004) during cool seasons. Temporal variabilities and trends of wave periods were more fragmented and heterogeneous compared to averages. Canadian wave energy fluxes generally exhibit an increase southward with latitudes. The wave energy typically diminishes from offshore (deep waters) to nearshore areas (shallow waters), with this attenuation being more pronounced in winter months. There is a rough decrease from winter, autumn, and spring to summer months, mirroring the seasonal variations of wave periods. This seasonality tends to be more pronounced in highly energetic regions, such as the Pacific and Atlantic oceans. This study enhances reliability and feasibility of macroscale wave-period and wave-energy estimation and analyses, offering scientific support for wave energy development, wave climatology, and ocean engineering.

利用波浪能资源的基石在于通过先进的波浪周期建模，对波浪能通量进行精确、全面的估算和评估。本研究采用已开发的宏观区域化集合波浪周期建模（MREWPM）方法，对加拿大各地的波浪周期和波浪能通量进行了初步综合估算和分析，并对波高和风速进行了高级估算。结果表明，加拿大的波浪周期在浅水、低后向散射、南部、偏远或东部水域延长，在微风、低后向散射、南部、偏远或东部地区表现出时间上的可变性。波浪周期呈现波动趋势，在凉爽季节，波浪周期在波谷（2004 年为 9.06 秒）前减小，在波谷后增大。与平均值相比，波浪周期的时变和趋势更加分散和不均匀。加拿大的波浪能通量一般表现为随纬度南移而增加。波浪能量通常从近海（深水）向近岸区域（浅水）衰减，这种衰减在冬季更为明显。从冬季、秋季和春季到夏季，波浪能量大致减弱，这反映了波浪周期的季节性变化。在高能量区域，如太平洋和大西洋，这种季节性往往更为明显。这项研究提高了宏观波浪周期和波浪能量估算与分析的可靠性和可行性，为波浪能开发、波浪气候学和海洋工程提供了科学支持。

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引用次数: 0

Model-based changes in hydro-sediment dynamics induced by estuarine wetlands 基于模型的河口湿地引起的水沙动态变化

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-05 DOI: 10.1016/j.ocecoaman.2024.107462

Sha Lou , Xiaolan Chen , Ming Chen , Shuguang Liu , Shengyu Zhou , Larisa Dorzhievna Radnaeva , Elena Nikitina , Irina Viktorovna Fedorova

Wetlands not only provide abundant resources for human beings, but also play an important role in ecological balance. Wetlands are abundant in the Yangtze River Estuary (CWYE). Due to the influence of vegetation in wetlands, of which the characteristics such as vegetation density are in spatial change, the hydrodynamics and sediment transport in the CWYE are complex. Therefore, three-dimensional numerical simulations in the CWYE were conducted based on Delft3D to analyze the hydro-sediment dynamics affected by vegetation. The traditional sediment module in Delft3D, which determines sediment initiation through the bottom shear stress calculated by flow velocity, was improved considering the influence of wake turbulence caused by vegetation stem on sediment suspension. Results have shown that vegetation reduced the flow velocity which decreased the turbulence, while the wake turbulence caused by vegetation stem increased it. The sediment suspension in wetlands depended on the relationship between the decrease of turbulence caused by decreasing velocity and the increase of turbulence caused by vegetation wake turbulence. The improved model in this paper can be used for hydro-sediment dynamics simulation in coastal wetlands as well as other vegetated areas.

湿地不仅为人类提供了丰富的资源，而且在生态平衡中发挥着重要作用。长江口湿地资源丰富。由于湿地植被的影响，其植被密度等特征在空间上不断变化，因此长江口的水动力和泥沙输运十分复杂。因此，基于 Delft3D 对 CWYE 进行了三维数值模拟，以分析受植被影响的水文泥沙动力学。Delft3D 中的传统沉积模块通过流速计算出的底部剪应力来确定沉积物的起始，考虑到植被茎干引起的唤醒湍流对沉积物悬浮的影响，对该模块进行了改进。结果表明，植被降低了流速，从而减少了湍流，而植被茎干引起的唤醒湍流则增加了湍流。湿地中的泥沙悬浮取决于流速减小引起的湍流减小与植被唤醒湍流引起的湍流增大之间的关系。本文改进的模型可用于滨海湿地和其他植被区的水沙动力学模拟。

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引用次数: 0

Shift of emphasis toward intelligent equipment maintenance in port operations: A critical review of emerging trends and challenges 港口运营的重点转向智能设备维护：对新兴趋势和挑战的批判性审查

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-04 DOI: 10.1016/j.ocecoaman.2024.107408

Zi-xin Wang , Qing-cheng Zeng , Hercules Haralambides

Due to the deepening levels of port automation and intelligence, the degree of equipment automation and the complexity of maintenance operations have increased substantially. Consequently, the evolution of intelligent technology has led to significant shifts in the types and quantities of issues encountered during the actual operation of equipment compared to historical contexts. The prevailing understanding of equipment maintenance systems might restrict ports' capacity to handle emergencies and exacerbate operational risks. This paper employs bibliometric methods to analyze the current state of cooperation, key focus areas, and emerging trends in port equipment maintenance. Additionally, the study conducts a critical analysis and systematic investigation based on the bibliometric results. The findings indicate that intelligent technology introduces novel methodologies for port equipment maintenance. Nevertheless, multiple challenges remain in applying intelligent technologies, such as data integration, fault tracking, and real-time diagnosis. The paper emphasizes that future research should concentrate on enhancing data fusion capabilities, improving fault management effectiveness, and refining maintenance decision-making processes to elevate the intelligence of port equipment.

随着港口自动化和智能化水平的不断提高，设备自动化程度和维护操作的复杂性也大幅增加。因此，与历史相比，智能技术的发展导致设备实际运行过程中遇到的问题类型和数量发生了重大变化。对设备维护系统的普遍认识可能会限制港口处理突发事件的能力，并加剧运营风险。本文采用文献计量学方法分析了港口设备维护的合作现状、重点领域和新兴趋势。此外，研究还根据文献计量学结果进行了批判性分析和系统性调查。研究结果表明，智能技术为港口设备维护引入了新的方法。然而，在应用智能技术的过程中仍面临多重挑战，如数据整合、故障跟踪和实时诊断。本文强调，未来的研究应集中在增强数据融合能力、提高故障管理效率和完善维护决策流程等方面，以提升港口设备的智能化水平。

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引用次数: 0

Quantifying the impact of small boats on Posidonia seagrass meadows: Methods and path for future efficient management of anchoring pressure 量化小船对 Posidonia 海草草甸的影响：未来有效管理锚泊压力的方法和路径

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-11-02 DOI: 10.1016/j.ocecoaman.2024.107454

Thomas Bockel , Noémie Bossut , Nicolas Mouquet , David Mouillot , Quentin Fontaine , Julie Deter

Coastal ecosystems are exposed to anthropogenic pressures worldwide. Seagrasses are sensitive to human activities, especially through physical stress. Among them, boats induce many pressures including physical degradation through anchoring. Mapping the anchoring pressure of large boats (≥24 m) can be done with traditional methods but is still challenging for smaller boats. Thus, the impact of large boats on coastal ecosystems is better documented and more efficiently regulated in comparison with small ones.

Here, we characterize the pressure and the impact of boats anchoring on Posidonia oceanica seagrass beds through the proxy of three landscape indices and compare anchoring surveillance methods.

We show that small boats also have an impact on P. oceanica when anchoring.

AIS (Automatic identification System) and low resolution satellite imagery are poorly adapted to detect small boat anchoring.

High resolution satellite imagery is a very efficient tool suitable even for small boats detection, but is for now limited to targeted surveys due to its high costs.

We propose an automatic detection/localization tool adapted to multisource imagery and test it successfully on a case study in Corsica (France).

Overall our study provides key quantified elements for the design of future efficient surveillance and management of anchoring pressure.

全世界的沿海生态系统都面临着人为压力。海草对人类活动非常敏感，尤其是物理压力。其中，船只会造成许多压力，包括通过抛锚造成的物理退化。绘制大型船只（≥ 24 米）的锚泊压力图可以通过传统方法完成，但对于小型船只来说仍然具有挑战性。因此，与小型船只相比，大型船只对沿海生态系统的影响得到了更好的记录和更有效的监管。在这里，我们通过三种景观指数来描述船只锚泊对 Posidonia oceanica 海草床的压力和影响，并比较了锚泊监测方法。高分辨率卫星图像是一种非常有效的工具，甚至适用于小船检测，但由于其成本较高，目前仅限于有针对性的调查。我们提出了一种适用于多源图像的自动检测/定位工具，并在法国科西嘉岛的一个案例研究中成功进行了测试。

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