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Challenges and opportunities for implementing nature-based solutions for disaster risk reduction in mountainous Central Asia 在中亚山区实施基于自然的减少灾害风险解决方案的挑战和机遇
Pub Date : 2025-06-01 DOI: 10.1016/j.nbsj.2025.100241
Roy C. Sidle , Vitalii Zaginaev , Arnaud Caiserman
Implementing nature-based solutions (NbS) in mountainous Central Asia involves numerous challenges given the diverse hazards and harsh climates. Three regional examples of different challenges for NbS are presented: (1) Gunt River valley in the Pamir of Tajikistan; (2) Fergana valley, southwest Kyrgyzstan; and (3) northern Tien Shan in Kyrgyzstan. In Gunt valley, a major challenge for NbS is the extensive development of farms and settlements on vulnerable debris fans. Of the 49 fans mapped in the steep-sided valley, 34 were assessed as unstable, all of which were developed; 63 % of the fans received snow avalanche deposits. Tree planting in key areas of fans to reduce the spread of debris flows is a viable NbS. Widespread conversion of native fruit and nut forests to overgrazed pastures in the hilly terrain of Fergana valley together with fissures created during nearby earthquakes has increased the occurrence of damaging landslides/debris flows in deep loess deposits. Restoring deep-rooted native woody vegetation together with reducing grazing pressure in these hills can be effective NbS. Frequent debris flows and episodic glacial lake outburst floods (GLOFs) have occurred during heavy rainfall throughout the Kungey and Kungey Ala-Too Ranges in northern Tien Shan. Here, because of the powerful force of these disasters, only limited opportunities for NbS exist – e.g., planting woody shrubs along outer edges of deflection dams for stabilization. Early-warning systems are needed in the most vulnerable areas to reduce hazard risk. These three examples show that NbS must be designed based on local conditions to be effective.
鉴于各种灾害和恶劣气候,在中亚山区实施基于自然的解决方案涉及许多挑战。提出了三个区域的例子,说明了国家统计局面临的不同挑战:(1)塔吉克斯坦帕米尔高原的Gunt河谷;(2)吉尔吉斯斯坦西南部费尔干纳山谷;(3)吉尔吉斯斯坦的天山北部。在Gunt valley, NbS面临的一个主要挑战是在脆弱的碎片扇上广泛开发农场和定居点。在陡峭山谷中绘制的49个扇中,有34个被评估为不稳定,所有这些扇都已开发;63%的粉丝收到了雪崩的押金。在重点扇区植树,减少泥石流蔓延是一种可行的减灾措施。在费尔干纳山谷的丘陵地带,原生水果和坚果林被广泛转化为过度放牧的牧场,加上附近地震造成的裂缝,增加了黄土深层沉积物中破坏性山体滑坡/泥石流的发生。在这些山区恢复根深蒂固的原生木本植被并减少放牧压力是有效的NbS。天山北部昆盖山脉和昆盖阿拉图山脉在强降雨期间频繁发生泥石流和间断性冰湖溃决洪水(GLOFs)。在这里,由于这些灾害的强大力量,NbS的机会有限-例如,在偏转坝的外缘种植木本灌木以保持稳定。在最脆弱的地区需要早期预警系统来减少灾害风险。这三个例子表明,国家统计局必须因地制宜,才能发挥作用。
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引用次数: 0
Harnessing nature-based solutions for resilient coastal agriculture: A case study of southwest Bangladesh 利用基于自然的解决方案促进沿海抗灾农业:孟加拉国西南部的案例研究
Pub Date : 2025-06-01 DOI: 10.1016/j.nbsj.2024.100209
Md. Hafiz Iqbal , Most. Tanzina Naznin , Md Zakir Hossen
Coastal regions worldwide, including the southwest coast of Bangladesh, are increasingly threatened by sea-level rise, storms, and human-induced factors. These stressors degrade coastal ecosystems, erode coastlines, and disrupt livelihoods. To address these challenges, second-order adaptation-supported nature-based solutions (NBS) offer a sustainable and cost-effective approach to enhance coastal resilience. Our research aims to provide empirical evidence on the economic feasibility and effectiveness of NBS in southwest coastal Bangladesh. Through focus group discussions (FGDs) and in-depth interviews with local communities, we have demonstrated the positive impacts of NBS on agricultural production and income generation. By promoting the adoption of NBS, policymakers and practitioners can contribute to building resilient coastal communities and achieving sustainable development goals.
全球沿海地区,包括孟加拉国西南海岸,正日益受到海平面上升、风暴和人为因素的威胁。这些压力源使沿海生态系统退化,侵蚀海岸线,破坏生计。为了应对这些挑战,二阶适应支持的基于自然的解决方案(NBS)提供了一种可持续的、具有成本效益的方法来增强沿海的复原力。我们的研究旨在为孟加拉国西南沿海国家统计局的经济可行性和有效性提供实证证据。通过焦点小组讨论(fgd)和对当地社区的深入访谈,我们证明了国家统计局对农业生产和创收的积极影响。通过推动采用国家统计局,政策制定者和实践者可以为建设具有复原力的沿海社区和实现可持续发展目标作出贡献。
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引用次数: 0
Advancing blue-green infrastructure design with synthetic 3D drainage channels: A scenario-based flood model in Nova Scotia, Canada 利用合成3D排水通道推进蓝绿基础设施设计:加拿大新斯科舍省基于场景的洪水模型
Pub Date : 2025-05-19 DOI: 10.1016/j.nbsj.2025.100238
Corey Dawson
Urbanized riverscapes are facing challenges due to hydrological changes. Adjusted flow regimes and imperviousness are contributing to increased flood risks resulting from gray infrastructure and strained subgrade drainage systems. Here a new methodology is presented for designing synthetic 3D drainage channels as blue-green infrastructure to enhance multidisciplinary decision-making for sustainable urban drainage systems planning and elements of nature-based stormwater management. LiDAR derived digital elevation models and River Builder software were used to generate four unique drainage channel scenarios with different surface geometries and vegetative cover types for flood modelling. Flood risks were assessed by fluvial simulation responses to specific channel elements and the design process may translate to real-world applications. Fluvial simulations were compared to evaluate how flood inundation patterns and flow velocities responded to morphology changes and roughness coefficients. Results suggest that incorporating geomorphic principles into open drainage channels can advance blue-green infrastructure design by reflecting more natural morphological elements and improve stakeholder engagement that is well suited for nature-based solutions. By combining high-resolution LiDAR data and process-based River Builder functions, the methodology presents a design tool for interactive investigation, adjustment, and communication of continuous 3D channel design scenarios. Although further site-specific studies are needed and additional metrics may be applied, this paper demonstrates a flexible framework to support sustainable urban drainage systems and nature-based stormwater management approaches in urbanized riverscapes.
城市化河流景观面临着水文变化带来的挑战。由于灰色的基础设施和紧张的路基排水系统,调整的水流模式和不透水性增加了洪水风险。本文提出了一种新的方法,将合成三维排水通道设计为蓝绿基础设施,以加强可持续城市排水系统规划和基于自然的雨水管理要素的多学科决策。利用激光雷达衍生的数字高程模型和River Builder软件生成四种独特的排水通道场景,这些场景具有不同的地表几何形状和植被覆盖类型,用于洪水建模。洪水风险是通过对特定渠道要素的河流模拟响应来评估的,设计过程可以转化为现实世界的应用。对比了河流模拟,以评估洪水淹没模式和流速如何响应形态变化和粗糙度系数。研究结果表明,将地貌学原理纳入开放式排水渠道可以通过反映更多的自然形态元素来推进蓝绿基础设施设计,并提高利益相关者的参与度,这非常适合基于自然的解决方案。通过结合高分辨率激光雷达数据和基于过程的River Builder功能,该方法提供了一种设计工具,用于交互式调查、调整和连续3D通道设计场景的沟通。虽然需要进一步的具体地点研究,并可能采用额外的指标,但本文展示了一个灵活的框架,以支持可持续的城市排水系统和基于自然的城市化河流景观的雨水管理方法。
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引用次数: 0
A scenario-based analysis of wetlands as nature-based solutions for flood risk mitigation using the TELEMAC-2D model 利用TELEMAC-2D模型对湿地作为减轻洪水风险的基于自然的解决方案进行基于场景的分析
Pub Date : 2025-05-18 DOI: 10.1016/j.nbsj.2025.100236
Kirk B. Enu , Fabian Merk , Hao Su , Manuel Rauch , Aude Zingraff-Hamed , Karl Broich , Kristian Förster , Stephan Pauleit , Markus Disse
Urban flooding is an escalating threat in rapidly urbanising regions, particularly in sub-Saharan Africa (SSA), where unregulated expansion and climate change intensify risks. Nature-based Solutions (NbS) are increasingly recognised as sustainable and cost-effective, yet empirical evidence to support their strategic planning, especially through high-resolution modelling in data-scarce settings, remains limited. This study presents one of the first integrated applications of spectral indices and TELEMAC-2D hydrodynamic modelling to assess NbS effectiveness in a rapidly urbanising SSA city, the Greater Kumasi Metropolitan Area (GKMA) in Ghana. Focusing on the Aboabo catchment, we analysed wetland ecosystem loss (1986–2023) and evaluated the impact of NbS interventions (floodplain restoration and wetland creation) on flood dynamics. Specifically, we assessed the flood reduction potential of different implementation scenarios and how these scenarios affect the timing and intensity of peak flows under varying storm conditions. Results show that wetland cover declined (59 %) while built-up areas expanded (134 %), leading to reduced cumulative discharge and more intense, shorter-duration floods. The combined scenario (floodplain restoration and wetland creation) achieved consistent peak flow reductions (16–19 %) in prolonged storms, while the ambitious_restoration scenario (restoring the full floodplain network) performed best (24 %) in short-duration events. In contrast, the landscape scenario (wetland creation in available spaces) achieved only modest reductions (1–3 %), underscoring the limited capacity of space-dependent approaches and the importance of spatial targeting. These findings support the case for hybrid approaches that combine NbS with engineering solutions to enhance both immediate and long-term flood resilience. Our approach demonstrates the adaptability of TELEMAC-2D for NbS modelling in data-limited contexts and offers a replicable, decision-relevant framework for integrating NbS into urban flood resilience planning across SSA and similar regions.
在快速城市化地区,城市洪水是一个日益严重的威胁,特别是在撒哈拉以南非洲(SSA),在那里,不受管制的扩张和气候变化加剧了风险。基于自然的解决方案(NbS)越来越被认为是可持续的和具有成本效益的,但支持其战略规划的经验证据仍然有限,特别是在数据稀缺的情况下通过高分辨率建模的经验证据。本研究提出了光谱指数和TELEMAC-2D流体动力学模型的首次综合应用之一,以评估NbS在快速城市化的SSA城市——加纳大库马西大都会区(GKMA)的有效性。以Aboabo流域为研究对象,分析了1986-2023年湿地生态系统的损失,并评估了NbS干预措施(洪泛平原恢复和湿地创造)对洪水动态的影响。具体而言,我们评估了不同实施方案的洪水减少潜力,以及这些方案如何影响不同风暴条件下峰值流量的时间和强度。结果表明:湿地覆盖面积减少(59%),建成区面积扩大(134%),导致累积流量减少,洪水强度增大,持续时间缩短;综合方案(洪泛区恢复和湿地创造)在长时间风暴中实现了一致的峰值流量减少(16 - 19%),而雄心勃勃的恢复方案(恢复整个洪泛区网络)在短时间事件中表现最好(24%)。相比之下,景观情景(在可用空间中创造湿地)仅实现了适度减少(1 - 3%),强调了空间依赖方法的有限能力和空间目标的重要性。这些发现支持将NbS与工程解决方案相结合的混合方法,以增强即时和长期的抗洪能力。我们的方法证明了TELEMAC-2D在数据有限的情况下对NbS建模的适应性,并为将NbS整合到SSA和类似地区的城市洪水恢复规划中提供了一个可复制的决策相关框架。
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引用次数: 0
A bibliometric analysis and overview of the effectiveness of Nature-based Solutions in catchment scale flood mitigation 基于自然的解决方案在流域尺度洪水缓解中的有效性的文献计量学分析和概述
Pub Date : 2025-05-15 DOI: 10.1016/j.nbsj.2025.100235
Prabhasri Herath , Roslyn Prinsley , Barry Croke , Jai Vaze , Carmel Pollino
Riverine flooding is among the most destructive natural hazards globally, leading to economic losses and posing serious threats to lives and infrastructure. Nature-based Solutions (NbS) have emerged as sustainable alternatives to conventional flood management, offering environmental and societal benefits beyond flood protection. However, despite growing interest in NbS, their effectiveness for flood mitigation across different contexts and scales remains inadequately synthesised, hampering their widespread adoption. This systematic review of 141 academic and 7 grey literature documents analysed NbS that operate through three fundamental strategies - detaining floods, reducing flood energy, and diverting floodwater. These NbS interventions are grouped into four categories: managing catchment land cover, storing excess water, reviving alternative routes, and managing the floodplain, where each intervention utilises one or more of the three fundamental strategies for flood mitigation. The analysis reveals that catchment forest cover is the most studied intervention (19.6 %), followed by wetlands (14.3 %) and land use and land cover patterns (13.2 %). Well-designed NbS can significantly reduce flood peaks for frequent smaller events and offer valuable co-benefits. Combined approaches integrating multiple NbS types and conventional infrastructure show enhanced flood mitigation potential. The effectiveness of NbS varies depending upon the catchment's physical characteristics (size, slope, topography, geology), river networks, land use patterns, location of NbS implementation and event magnitude, along with climate condition. These findings advance the current understanding of NbS effectiveness and offer evidence-based guidance for implementing catchment-scale flood mitigation strategies, underscoring the importance of context-specific design.
河流洪水是全球最具破坏性的自然灾害之一,造成经济损失,并对生命和基础设施构成严重威胁。基于自然的解决方案(NbS)已经成为传统洪水管理的可持续替代方案,在防洪之外提供环境和社会效益。然而,尽管人们对NbS的兴趣日益浓厚,但它们在不同背景和规模下缓解洪水的有效性仍然没有得到充分的综合,阻碍了它们的广泛采用。本文对141份学术文献和7份灰色文献进行了系统回顾,分析了国家统计局通过三种基本策略——抑制洪水、降低洪水能量和分流洪水来运作。这些国家统计局的干预措施分为四类:管理集水区土地覆盖、储存多余的水、恢复替代路线和管理洪泛区,其中每项干预措施都利用三种缓解洪水的基本战略中的一种或多种。分析表明,流域森林覆盖是研究最多的干预措施(19.6%),其次是湿地(14.3%)和土地利用和土地覆盖模式(13.2%)。精心设计的国家统计局可以显著降低频繁发生的小型事件的洪峰,并提供宝贵的协同效益。综合多种国家统计局类型和传统基础设施的综合方法显示出增强的防洪潜力。国家统计局的有效性取决于集水区的物理特征(大小、坡度、地形、地质)、河流网络、土地利用模式、实施国家统计局的地点和事件强度,以及气候条件。这些发现促进了目前对国家统计局有效性的理解,并为实施流域尺度的洪水缓解策略提供了循证指导,强调了具体环境设计的重要性。
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引用次数: 0
Citizen-led initiatives and hydro-meteorological risks reduction: Who is implementing nature-based solutions? 公民主导的倡议和减少水文气象风险:谁在实施基于自然的解决方案?
Pub Date : 2025-05-08 DOI: 10.1016/j.nbsj.2025.100234
Yaw Agyeman Boafo , Kirk B. Enu , Kofi Dua Agyei , Jude Dokbila Kolog
Citizen-led initiatives are crucial in mitigating hydro-meteorological hazards such as floods, extreme heat, and drought, as they complement state-led efforts and fill gaps where institutional responses fall short, especially in developing regions. As advocacy for Nature-based Solutions (NbS) grows—valued for their efficacy, cost-effectiveness, simplicity, and multifunctionality—there is an urgent need to understand how citizens are adopting these measures to inform strategies for scaling NbS uptake. This study surveyed 1286 respondents across the dense Greater Accra Metropolitan Area (GAMA) and the rapidly growing Greater Kumasi Metropolitan Area (GKMA) in Ghana to map citizen-led initiatives and identify factors influencing NbS adoption using a multinomial logit model. The results show that GAMA residents predominantly rely on non-structural measures, such as temporary relocation and water conservation, reflecting spatial constraints and dense urban form. In contrast, GKMA residents favor structural measures, particularly NbS, including tree planting, rainwater harvesting, and home gardens. Demographic and household factors significantly influenced NbS uptake. Younger individuals, those with technical education, and larger households were more likely to adopt NbS. Older individuals and those with higher education levels often preferred conventional or reactive strategies. Prior hazard experiences increased the likelihood of NbS adoption; however, more severe experiences tend to shift preferences toward immediate non-structural or conventional measures, highlighting perceptions of the time-intensive nature of NbS effectiveness. The findings advocate for integrating NbS into urban planning frameworks, supported by policies that incentivize citizen-led initiatives and address spatial and financial barriers. Furthermore, underutilized local knowledge and widely adopted non-structural strategies offer complementary pathways to enhance NbS adoption and foster more inclusive and sustainable urban resilience. This study provides actionable insights for promoting NbS in rapidly urbanizing cities of the Global South.
公民主导的倡议对于减轻洪水、极端高温和干旱等水文气象灾害至关重要,因为它们补充了国家主导的努力,填补了机构应对不足的空白,特别是在发展中地区。基于自然的解决方案(NbS)因其有效性、成本效益、简单性和多功能而受到重视,随着对其的倡导不断增长,迫切需要了解公民如何采用这些措施来为扩大NbS的采用提供信息。本研究调查了加纳人口密集的大阿克拉都会区(GAMA)和快速增长的大库马西都会区(GKMA)的1286名受访者,以绘制公民主导的倡议,并使用多项逻辑模型确定影响国家统计局采用的因素。结果表明,GAMA居民主要依靠临时搬迁和节水等非结构性措施,反映了空间约束和密集的城市形态。相比之下,GKMA居民倾向于结构性措施,特别是NbS,包括植树、雨水收集和家庭花园。人口和家庭因素对国家统计局的吸收有显著影响。年轻人、受过技术教育的人和大家庭更有可能采用国家统计局。老年人和受教育程度较高的人通常更喜欢传统的或被动的策略。先前的危险经历增加了采用NbS的可能性;然而,更严重的经验倾向于将偏好转向直接的非结构性或传统措施,突出了国家统计局有效性的时间密集性。研究结果主张将国家统计局纳入城市规划框架,并辅以鼓励公民主导的倡议和解决空间和财务障碍的政策。此外,未充分利用的地方知识和广泛采用的非结构性战略为提高国家统计局的采用和培养更具包容性和可持续的城市韧性提供了互补途径。本研究为在全球南方快速城市化的城市推广国家统计局提供了可行的见解。
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引用次数: 0
Nature-based solutions: From flood defense to addressing water scarcity and climate change risks 基于自然的解决方案:从防洪到解决水资源短缺和气候变化风险
Pub Date : 2025-05-02 DOI: 10.1016/j.nbsj.2025.100233
Stella Apostolaki
The adding pressures of climate change on natural resources are particularly obvious in water stressed areas and are introducing additional challenges related to water management, water availability and conservation of natural resources. Adaptation to the new climatic and socio-economic conditions requires innovative solutions with minimal impact on the already stressed resources and ecosystems. Following the principles of ecological engineering, solutions on rainwater harvesting and management, such as certain types of Sustainable Urban Drainage Systems, can form part of nature-based solutions. SUDS although have conventionally been used as options for flow attenuation, managing excess runoff and flood defense, they have a high potential for water reuse and drought management. This was happening due to the fact that they were originally implemented in geographic regions with significant levels of precipitation facing no drought issues. Recently such systems have been implemented in regions with water availability issues and in wetland, floodplains and riparian restoration efforts. Those options today are used so as to provide a new water resource of particular significance for the water scarce regions through the water storage and reuse potential they offer. The current paper is, therefore, aiming to present the water reuse element and the ways to achieve it through recognising the nature-based solutions as means to ensure water security, reduce the risks of climate change and of water scarcity and provide new options based on the principles of sustainability and circular economy.
气候变化对自然资源的日益增加的压力在水资源紧张地区尤为明显,并在水资源管理、水资源供应和自然资源养护方面带来了新的挑战。适应新的气候和社会经济条件需要创新的解决方案,对已经承受压力的资源和生态系统的影响最小。遵循生态工程的原则,雨水收集和管理的解决方案,如某些类型的可持续城市排水系统,可以构成基于自然的解决方案的一部分。虽然SUDS通常被用作流量衰减、管理过量径流和防洪的选择,但它们在水再利用和干旱管理方面具有很高的潜力。之所以会出现这种情况,是因为它们最初是在降水显著、没有干旱问题的地理区域实施的。最近,这种系统已在有水资源问题的地区以及湿地、洪泛平原和河岸恢复工作中实施。今天使用这些备选办法是为了通过它们提供的水储存和再利用潜力,为缺水地区提供一种特别重要的新水资源。因此,当前的论文旨在通过认识到基于自然的解决方案是确保水安全、减少气候变化和水资源短缺风险的手段,并提供基于可持续性和循环经济原则的新选择,来展示水的再利用要素和实现它的方法。
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引用次数: 0
Developing multidimensional agro-silvi-pastoral-horti-medicinal plants models around urban areas: A lesson from corona pandemic 在城市地区建立多维农牧中药材模式:从冠状病毒大流行中吸取的教训
Pub Date : 2025-04-02 DOI: 10.1016/j.nbsj.2025.100231
Dharmendra Dugaya , Pradeep Chaudhry
Present research communication suggests the needs of developing a multidimensional agroforestry model considering the native plant species naturally growing in the area. This may serve as long-term solution for combating the situations arisen by the corona virus and alike issues in future. India, like other countries, experienced three waves of COVID-19 and the situation was more alarming at the time of second wave in April-May months of 2021 when oxygen cylinders went short in supply for the patients. The use and importance of plant based medicines for the human immunity is well discussed and established in literature. The availability of raw material for the plant based pharmaceutical industries in the future at the present pace may not be sufficient given the interest and demand for these medicines in different parts of the world. This calls for bringing in more area under plant cultivation, wherever possible in urban and semi urban areas. The suggested approach for introducing the multidimensional agro-silvi-pastoral-horti-medicinal plants in the urban and surrounding area and the similar areas of central India could serve as a basis for others to follow. In addition, the effective use of agroforestry systems can considerably improve soil fertility, biodiversity, aesthetics, aid in carbon sequestration, and serve as one of the recognised tools for climate change adaptation and mitigation.
目前的研究表明,需要建立一个考虑该地区自然生长的本地植物物种的多维农林业模型。这可能是今后应对冠状病毒引起的局势和类似问题的长期解决办法。与其他国家一样,印度经历了三波新冠肺炎疫情,在2021年4月至5月的第二波疫情中,情况更加令人担忧,当时患者的氧气瓶供应短缺。植物性药物对人体免疫的作用和重要性在文献中得到了很好的讨论和确立。考虑到世界各地对这些药物的兴趣和需求,以目前的速度,未来植物制药业的原料供应可能还不够。这就要求尽可能在城市和半城市地区扩大种植面积。所建议的在城市和周边地区以及印度中部类似地区引进农-银-牧-草本植物的方法可以作为其他地区效仿的基础。此外,农林复合系统的有效利用可大大改善土壤肥力、生物多样性、美观性,有助于固碳,并可作为适应和减缓气候变化的公认工具之一。
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引用次数: 0
Understanding the recreation-conservation nexus in peri-urban landscapes: challenges, opportunities, and knowledge gaps 了解城市周边景观中的娱乐与保护关系:挑战、机遇和知识差距
Pub Date : 2025-04-02 DOI: 10.1016/j.nbsj.2025.100232
Amin Rastandeh , Sara Borgström , Erik Andersson , Kristin Malmcrona Friberg , Anja Moum Rieser
Peri-urban landscapes are the meeting point of a wide range of human activities, power dynamics, and social-ecological processes in the Anthropocene. Multiple interests, as well as differences in governance regimes and decision-making processes increase the complexity of peri‑urban landscapes. With this complexity as a background, we place our focus on the interactions between two highly desirable human activities in peri‑urban landscapes: outdoor recreation and biodiversity conservation. The multifunctional role peri‑urban landscapes can fulfill to respond to biodiversity conservation and outdoor recreation goals has the capacity to minimize the potential clash between these two functions. Despite this, little attention has been paid to the realization of multifunctionality in peri‑urban landscapes when addressing the recreation-conservation nexus. In this Perspective, we provide a foundation for further inter-disciplinary explorations in this area by identifying knowledge gaps and priorities for future research on the recreation-conservation nexus in peri‑urban landscapes with particular emphasis on the “spatial” dimension.
城市周边景观是人类世广泛的人类活动、权力动态和社会生态过程的交汇点。多重利益以及治理制度和决策过程的差异增加了城市周边景观的复杂性。以这种复杂性为背景,我们将重点放在城郊景观中两种非常理想的人类活动之间的相互作用上:户外娱乐和生物多样性保护。城市周边景观在应对生物多样性保护和户外游憩目标方面所发挥的多功能作用能够最大限度地减少这两种功能之间的潜在冲突。尽管如此,在解决娱乐与保护的关系时,很少有人注意到城郊景观的多功能性。在这一视角中,我们通过确定知识缺口和未来城市周边景观中休闲保护关系研究的优先事项(特别强调“空间”维度),为该领域的进一步跨学科探索奠定了基础。
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引用次数: 0
Differences in habitat complexity between restored and natural seagrass meadows shape fish community structure 恢复海草草甸与天然海草草甸生境复杂性的差异决定了鱼类群落结构
Pub Date : 2025-03-27 DOI: 10.1016/j.nbsj.2025.100230
Julia Castro-Fernández, Inés Castejón-Silvo, Hilmar Hinz, Aleida Escandell Westcott, Jorge Terrados
Seagrass meadows play a crucial role in providing essential ecosystem functions and services, serving as habitat and nursery areas for numerous fish species. Seagrass structural complexity is a key factor influencing these functions. The alarming degradation rate of seagrass beds has boosted research into restoration efforts as Nature-Based Solutions, aimed at recovering meadow structure and associated functions. A comprehensive understanding of how fish communities respond to seagrass restoration is necessary to quantify the ecosystem services in restored areas. This study evaluates the restoration progress of habitat structure in a rehabilitated Posidonia oceanica meadow and the fish communities inhabiting this area, encompassing juvenile and adult fish populations. The structural recovery dynamics of the restored meadow and its fish assemblages were compared to those in the inner and edge areas of a natural reference meadow. In situ measurements of habitat complexity were taken, while fish communities were evaluated through diver-operated stereo-video transects. The restored area exhibited reduced structural complexity, lower juvenile and adult species richness, total density, and biomass compared to reference areas, with a distinct species composition. Differences were more pronounced for adults than juveniles, suggesting that after a three-year recovery period, the restored area may provide food and shelter for some juvenile species but remains inadequate for adults. Although some fish utilize the restored area, reference levels for the habitat and nursery functions have not been attained yet. Further research on the long-term evolution of the state of ecosystem functions following restoration actions is critical for assessing potential effective technical measures of replanting that may help accelerate the recovery rates of these functions to reference levels.
海草草甸在提供基本生态系统功能和服务方面发挥着至关重要的作用,是许多鱼类的栖息地和苗圃。海草结构复杂性是影响这些功能的关键因素。海草床惊人的退化速度推动了对恢复工作的研究,作为基于自然的解决方案,旨在恢复草甸结构和相关功能。全面了解鱼类群落对海草恢复的反应是量化恢复地区生态系统服务的必要条件。本研究对恢复后的大洋波西多尼亚草甸生境结构及其鱼类群落的恢复进展进行了评价,包括幼鱼和成鱼种群。将恢复后的草甸及其鱼类群落的结构恢复动态与自然参考草甸的内部和边缘进行了比较。对生境的复杂性进行了原位测量,同时通过潜水员操作的立体视频样带对鱼类群落进行了评估。与对照区相比,恢复区结构复杂性降低,幼虫和成虫物种丰富度、总密度和生物量均较低,物种组成明显不同。这表明经过3年的恢复期,恢复后的区域可以为一些幼鱼提供食物和住所,但对成年鱼来说仍然不足。虽然一些鱼类利用恢复的区域,但尚未达到生境和苗圃功能的参考水平。进一步研究恢复行动后生态系统功能状态的长期演变,对于评估潜在的有效的再植技术措施至关重要,这些技术措施可能有助于加速这些功能恢复到参考水平。
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Nature-Based Solutions
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