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Corrigendum: Blue-Green Systems 4 (1), 45–57: Understanding the effects of site-scale water-sensitive urban design (WSUD) in the urban water cycle: a review, Xuli Meng, http://dx.doi.org/10.2166/bgs.2022.026 勘误:蓝绿系统4(1),45-57:了解场地尺度水敏感城市设计(WSUD)在城市水循环中的影响:综述,Xuli孟,http://dx.doi.org/10.2166/bgs.2022.026
Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-10-20 DOI: 10.2166/bgs.2023.001
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引用次数: 0
Modeling bioinfiltration surface dynamics through a hybrid geomorphic-infiltration model 通过混合地貌-入渗模型模拟生物入渗表面动力学
Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-09-25 DOI: 10.2166/bgs.2023.027
Richard Ampomah, Danielle Holt, Cole Smith, Virginia Smith, Kristin Sample-Lord, Jonathan Nyquist
Abstract Bioinfiltration systems are an increasingly prevalent mechanism for urban stormwater mitigation. One major challenge for the sustainability of bioinfiltration systems is erosion and channelization due to high bed shear stresses developed during large storm events. Sedimentation within these systems could also impact their performance as fine sediment may clog pathways necessary for infiltration. Understanding the geomorphology, shear stress, and sediment flux in the system can help predict maintenance needs associated with erosion and deposition. The current study introduces a framework for addressing this problem by combining a sediment transport model, FaSTMECH, with the Green-Ampt infiltration model. A comparison of observed and predicted ponding depths shows very good agreement (median Nash–Sutcliffe efficiency coefficient = 0.93) and demonstrates the ability of this novel framework in predicting the hydraulics and morphology within a bioswale bioinfiltration system. The framework introduced in this study opens the door to understanding sediment transport dynamics within a bioswale, which has the potential to advance planning and design to minimize impacts due to excessive erosion or deposition within bioswale bioinfiltration systems.
生物渗透系统是一种日益流行的城市雨水缓解机制。生物渗透系统的可持续性面临的一个主要挑战是由于大风暴事件期间形成的高床剪切应力造成的侵蚀和渠化。这些系统内的沉积也会影响它们的性能,因为细小的沉积物可能会堵塞渗透所必需的途径。了解系统中的地貌、剪切应力和沉积物通量可以帮助预测与侵蚀和沉积相关的维护需求。目前的研究引入了一个框架,通过将沉积物输运模型FaSTMECH与Green-Ampt入渗模型相结合来解决这一问题。观察到的池塘深度和预测的池塘深度的比较显示出非常好的一致性(纳什-苏特克利夫效率系数中值= 0.93),并证明了这种新框架在预测生物沼泽生物渗透系统中的水力学和形态方面的能力。本研究中引入的框架为理解生物沼泽中的沉积物运输动力学打开了大门,这有可能推进规划和设计,以尽量减少生物沼泽生物渗透系统中过度侵蚀或沉积造成的影响。
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引用次数: 0
Framework for the documentation of nature-based solutions for stormwater management 基于自然的雨水管理解决方案文件编制框架
IF 4.6 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-09-06 DOI: 10.2166/bgs.2023.131
G. Raspati, S. Bruaset, Kamal Azrague, R. Ugarelli, T. Muthanna, Berit Time, E. Sivertsen
Nature-based solutions (NBSs) are widely implemented for stormwater management as such they have become important assets that require proper asset management at different stages of their service life. Hence, there is a need for systematic documentation of the applied NBS in accordance with the principles of infrastructure asset management and in combination with a set of requirements in the newly adopted National Standard NS3456:2022 in Norway. A framework for the documentation of NBSs was developed based on a systematic literature study, the experience gained from operating NBS pilots, and the interaction with stakeholders in a research centre, Klima 2050. The framework proposed a set of specific information in the form of a data structure covering a set of categories that presents information gathered during the planning, design, operation, and maintenance phases of the NBS. Both technical and sociotechnical aspects were included in the data structure. The data structure can be tailor-made depending on the type of NBS applied. The data structure was applied in documenting the NBS pilots of the research centre to demonstrate the framework's ability to help ensure a smooth flow of information from the actors involved in the planning, constructing, and operating of the NBS.
基于自然的解决方案(NBS)被广泛用于雨水管理,因此它们已成为重要的资产,需要在其使用寿命的不同阶段进行适当的资产管理。因此,需要根据基础设施资产管理的原则,并结合挪威新采用的国家标准NS3456:2022中的一系列要求,对所应用的NBS进行系统的记录。根据系统的文献研究、国家统计局试点的经验以及与Klima 2050研究中心利益相关者的互动,制定了国家统计局文件编制框架。该框架以数据结构的形式提出了一组特定信息,涵盖了一组类别,这些类别展示了在国家统计局的规划、设计、运营和维护阶段收集的信息。数据结构包括技术和社会技术两个方面。数据结构可以根据应用的NBS类型进行定制。数据结构用于记录研究中心的国家统计局试点,以证明该框架有能力帮助确保国家统计局规划、建设和运营参与者的信息顺畅流动。
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引用次数: 0
Cost-effective method for the estimation of tree crown density in urban settings using a smartphone 使用智能手机估算城市树冠密度的成本效益方法
IF 4.6 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-09-05 DOI: 10.2166/bgs.2023.029
Ivo Sippel, Lucie Moeller, Jan Friesen
Urban trees provide vital ecosystem services, and assessing their health is crucial for managing urban infrastructure. Traditional methods of assessing crown density, an indicator of tree vitality, involve horizontal perspectives of unobstructed canopies. This study presents a novel method for estimating crown density in urban street trees that are surrounded by obstructing objects like buildings. The approach is based on photographs of the tree crown from defined positions using a smartphone. The method was validated on eight small-leaved lime trees in Leipzig during the 2021 vegetation period, demonstrating that crown density can be estimated by analyzing smartphone-photographs from various perspectives. The method provides data to quantify crown development and can be used to compare the vitality status of individual trees. The different perspectives are consistent in their estimates of crown density throughout the annual plateau phase of crown development. During the initial greening phase, crown photographs taken from angularly oriented positions showed a higher slope value than those taken from other positions. The method can also estimate the effect of blue-green infrastructures on tree vitality compared to regular urban tree planting methods. The approach is a practical and cost-effective tool for assessing tree vitality in spatially confined urban areas.
城市树木提供重要的生态系统服务,评估其健康状况对管理城市基础设施至关重要。评估树冠密度的传统方法,作为树木活力的指标,涉及无障碍树冠的水平视角。本研究提出了一种新的方法来估计被建筑物等障碍物包围的城市行道树的树冠密度。该方法基于使用智能手机从指定位置拍摄的树冠照片。2021年植被期,该方法在莱比锡的八棵小叶酸橙树上进行了验证,表明可以通过从不同角度分析智能手机照片来估计树冠密度。该方法提供了量化树冠发育的数据,并可用于比较单个树木的活力状态。在树冠发育的年度高原阶段,不同的观点对树冠密度的估计是一致的。在最初的绿化阶段,从有角度的位置拍摄的树冠照片显示出比从其他位置拍摄的更高的坡度值。与常规城市植树方法相比,该方法还可以估计蓝绿色基础设施对树木活力的影响。该方法是一种实用且具有成本效益的工具,用于评估空间受限的城市地区的树木活力。
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引用次数: 0
The economic impact of water supply disruption from the Selangor River, Malaysia 马来西亚雪兰莪河供水中断的经济影响
IF 4.6 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-08-21 DOI: 10.2166/bgs.2023.031
A. Raihan, J. Pereira, R. Begum, R. Rasiah
The insidious economic impact of water disruption has received less attention compared to palpable climate disasters, but climate change and water security concerns call for investigation on cost consequences of property values and business losses in an already fragile water supply-demand balance in many developing countries. The economic impact of frequent water supply disruptions from the Selangor River in Malaysia due to technical issues, water pollution, and climate-related problems was estimated using the stock flow measure to assess property at risk, and survey to estimate business loss. The findings revealed that commercial, residential, and industrial property valued at RM459,041 million in 2020 in the State of Selangor and parts of Kuala Lumpur, were at risk due to frequent water supply disruptions. A survey of small and medium enterprises from the manufacturing, construction, and services sectors revealed that 46% of the respondents were affected with losses amounting to RM2,053 million. The total economic impact of water supply disruption in 2020, combining both property value at risk and business loss, is amounted to RM461,094 million, which accounted for 34% of Malaysia's GDP. A number of recommendations are made to prevent the widespread occurrence of water disruptions.
与明显的气候灾害相比,水资源中断的潜在经济影响没有受到太多关注,但气候变化和水安全问题需要调查许多发展中国家本已脆弱的水供需平衡中财产价值和商业损失的成本后果。由于技术问题、水污染和气候相关问题,马来西亚雪兰莪河频繁供水中断的经济影响是使用存量流量测量来评估风险财产,并使用调查来估计业务损失。调查结果显示,由于频繁的供水中断,雪兰莪州和吉隆坡部分地区2020年价值459041万令吉的商业、住宅和工业地产面临风险。一项针对制造业、建筑业和服务业中小型企业的调查显示,46%的受访者受到影响,损失达20.53亿令吉。2020年供水中断的总经济影响,加上面临风险的财产价值和商业损失,达到461094亿令吉,占马来西亚GDP的34%。提出了一些建议,以防止水资源中断的普遍发生。
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引用次数: 6
How do material characteristics and antimicrobial mechanisms affect microbial control and water disinfection performance of metal nanoparticles? 材料特性和抗菌机制如何影响金属纳米颗粒的微生物控制和水消毒性能?
IF 4.6 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-08-07 DOI: 10.2166/bgs.2023.007
Jinghan Zhao, Peihua Yan, Aizaz Qureshi, C. Yi
Nanotechnology has been rapidly developing in the past decade, and metal nanomaterials have shown promising improvement in microbial control. Metal nanoparticles have been applied in medical settings for adequate disease spread control and to overcome the challenges of multidrug-resistant microorganisms. Recently, the demand for safe water supply has increased, requiring higher sanitation of the water treatment technology as well as being environmentally sustainable. However, the employed water disinfection technologies cannot meet the elevated demand due to limitations including chemical byproducts, immobility, energy consumption, etc. Metal nanomaterials are considered to be an alternative disinfection technology considering their high efficiency, mobility, and stability. A significant amount of research has been carried out on enhancing the antimicrobial efficiency of metal nanomaterials and determining the underlying antimicrobial mechanisms. This paper provides an overview of emerging metal nanomaterials development, including the synthesis method, material characteristics, disinfection performance, environmental factors, potential mechanism, limitations, and future opportunities in the water disinfection process.
在过去的十年里,纳米技术得到了快速发展,金属纳米材料在微生物控制方面表现出了很好的改善。金属纳米颗粒已被应用于医疗环境中,以充分控制疾病传播并克服耐多药微生物的挑战。最近,对安全供水的需求增加了,要求水处理技术具有更高的卫生条件,并具有环境可持续性。然而,由于化学副产品、固定性、能耗等限制,所采用的水消毒技术无法满足日益增长的需求。考虑到金属纳米材料的高效性、流动性和稳定性,金属纳米材料被认为是一种替代消毒技术。在提高金属纳米材料的抗菌效率和确定潜在的抗菌机制方面,已经进行了大量的研究。本文概述了新兴金属纳米材料的发展,包括合成方法、材料特性、消毒性能、环境因素、潜在机制、局限性以及水消毒过程中的未来机遇。
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引用次数: 0
Re-naturing cities through water-centric development: evaluating a canal restoration project in Narayanganj City, Bangladesh 通过以水为中心的发展使城市恢复自然:评估孟加拉国纳拉扬甘吉市的运河修复项目
IF 4.6 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-06-19 DOI: 10.2166/bgs.2023.003
Imon Chowdhooree, T. Aziz
The concept of ‘re-naturing cities’ promotes nature-based solutions for sustainable urban design; one of those being water-centric development with networks of blue (water bodies) and green (vegetation areas) aims to generate urban areas that support economic growth, strengthen social cohesion, and restore degraded ecosystems. Projects get implemented for revitalizing urban water bodies with multifunctional areas. This context demands to study water-centric development projects for evaluating their success of ‘re-naturing cities’ in terms of achieving sustainable goals. This research analyzes a part of a canal restoration project of Narayanganj City, Bangladesh, for investigating the development process and understanding its effectiveness in achieving sustainable goals. The study employs multiple qualitative tools for capturing users' views (emic analysis) and researchers' views (etic analysis). The combined understanding identifies that the project focuses primarily on adding an aesthetically pleasing element to the urban fabric, overlooking multiple socioeconomic and ecological possibilities of living with water.
“自然城市”的概念促进了基于自然的可持续城市设计解决方案;其中之一是以水为中心的发展,以蓝(水体)和绿(植被区)为网络,旨在形成支持经济增长、加强社会凝聚力和恢复退化生态系统的城市地区。实施城市多功能区水体振兴工程。这种背景要求研究以水为中心的发展项目,以评估它们在实现可持续目标方面的“自然城市”的成功。本研究分析了孟加拉国Narayanganj市运河修复项目的一部分,以调查开发过程并了解其在实现可持续目标方面的有效性。该研究采用了多种定性工具来捕捉用户的观点(主位分析)和研究人员的观点(位位分析)。综合的理解确定了该项目主要侧重于为城市结构增加一个美观的元素,忽略了与水共存的多种社会经济和生态可能性。
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引用次数: 1
Quantifying the impact of the urban karst on infiltrated stormwater 量化城市喀斯特对入渗雨水的影响
IF 4.6 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-06-02 DOI: 10.2166/bgs.2023.002
Abolfazl Poozan, M. J. Burns, M. Arora, A. Western
Urbanization alters the flow regime of streams, including increasing the frequency and magnitude of storm flows, along with reducing baseflows. An increasingly common management strategy is stormwater infiltration, which is thought to reduce surface runoff and recharge groundwater and thus restore lost baseflows to streams. Recent research has pointed to considerable uncertainty on the fate of infiltrated stormwater, particularly due to the presence of human-made underground infrastructure – e.g. sewer and water supply pipes, telecommunication cables. Such infrastructure is commonly housed in trenches partially filled with highly permeable material and this can cause urban karst like flow conditions. We used a dynamic subsurface flow model (HYDRUS-3D) to predict the impact of the urban karst on the fate of infiltrated stormwater. The model was constructed with the presence of a sewer pipe situated between an infiltration basin and a stream. The model predicted that the impact of the urban karst on infiltrated stormwater increases with higher groundwater levels, and greater contrast between hydraulic conductivity of regional soil and gravel which surrounds the sewer pipe. Results suggest that it is important to consider the impact of the urban karst in cases where the goal of stormwater infiltration is baseflow restoration.
城市化改变了河流的流动状况,包括增加了暴雨的频率和强度,同时减少了基流。雨水渗透是一种越来越普遍的管理策略,它被认为可以减少地表径流并补充地下水,从而使失去的基流恢复到溪流中。最近的研究指出,渗入的雨水的命运相当不确定,特别是由于存在人造地下基础设施-例如下水道和供水管道,电信电缆。这类基础设施通常建在沟渠中,沟渠中部分填满了高渗透性材料,这可能导致类似城市喀斯特的水流状况。我们使用动态地下流模型(HYDRUS-3D)来预测城市喀斯特对入渗雨水命运的影响。该模型是在一个位于渗透盆地和溪流之间的污水管道的存在下构建的。该模型预测,城市喀斯特对入渗雨水的影响随着地下水位的升高而增大,区域土壤和污水管道周围砾石的水力导电性差异越大。结果表明,当雨水入渗的目标是恢复基流时,考虑城市喀斯特的影响是重要的。
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引用次数: 0
Spatiotemporal estimation of fresh submarine groundwater discharge across the coastal shorelines of Oahu Island, Hawaii 夏威夷瓦胡岛沿海岸线新鲜海底地下水排放的时空估算
IF 4.6 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-06-01 DOI: 10.2166/bgs.2023.010
K. A. Ghazal, O. T. Leta, H. Dulai
The integrated hydrological model is a powerful tool that is used to assess the temporal distribution of fresh groundwater discharge especially in coastal areas. The coastal regions of Hawaii are examples of crucial natural resources for the Hawaiian economy and general ecological health. To fully comprehend the intricate interactions between coastal hydrology processes and ecosystems, it is necessary to evaluate the fresh submarine groundwater discharge (FSGD) at the Heeia shoreline using an integrated hydrological modeling technique. Under steady-state settings, the results showed that the present daily average of FSGD is around 0.43 m3/days across 1 m of the shoreline. However, we showed that the FSGD values were considerably impacted by climate change, groundwater head of the coastal aquifer, recharge rate, and sea level rise, particularly by the end of the 21st century. The post-development FSGD fluxes were 1.5–3.5 times greater than the freshwater transported by the Heeia stream, demonstrating the considerable contribution of the FSGD to the coastal zones of Heeia. The results also showed an exponential association between the FSGD and the groundwater level for the coastal unconfined aquifer.
综合水文模型是一个强大的工具,用于评估淡水地下水排放的时间分布,特别是在沿海地区。夏威夷沿海地区是夏威夷经济和总体生态健康的重要自然资源的例子。为了充分理解沿海水文过程和生态系统之间的复杂相互作用,有必要使用综合水文建模技术评估Heeia海岸线的淡水海底地下水排放量。在稳态设置下,结果显示,目前1米海岸线的FSGD日平均值约为0.43 m3/天。然而,我们表明,FSGD值受到气候变化、海岸含水层地下水水头、补给率和海平面上升的显著影响,尤其是到21世纪末。开发后的FSGD通量是Heeia河输送淡水的1.5–3.5倍,表明FSGD对Heeia海岸带的巨大贡献。结果还表明,海岸无侧限含水层的FSGD与地下水位之间存在指数相关性。
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引用次数: 0
Toward a comprehensive functional typology of stormwater control measures for hydrological and water quality modeling purposes 以水文和水质模拟为目的,建立综合功能类型的雨水控制措施
IF 4.6 Q3 ENVIRONMENTAL SCIENCES Pub Date : 2023-06-01 DOI: 10.2166/bgs.2023.026
José Manuel Tunqui Neira, M. Gromaire, K. Chancibault, G. Chebbo
Stormwater control measures (SCMs) are designed according to different urban stormwater management criteria. These criteria are usually the basis for the conception of SCM typologies. Although these typologies are useful, there is currently no typology that can generically describe all the diversity of SCMs and that is adapted for modeling. Thus, a new typology is proposed here. This typology is based on two criteria commonly used in stormwater management: the hydrological function and the type of structure. These two criteria are combined through a cross table. This combination yields the identification of 16 groups of SCMs represented graphically by physical compartments. These groups make it possible to represent a large diversity of existing SCMs. The new typology also allows a more adequate identification and conceptualization – via a reservoir-type approach – of the different hydrological and reactive processes occurring at the SCM level.
雨水控制措施(scm)是根据不同的城市雨水管理标准设计的。这些标准通常是SCM类型学概念的基础。尽管这些类型学很有用,但目前还没有一种类型学可以通用地描述scm的所有多样性,并适用于建模。因此,这里提出了一种新的类型学。这种类型基于雨水管理中常用的两个标准:水文功能和结构类型。这两个标准通过一个交叉表组合在一起。这种组合产生了16组scm的识别,以物理分隔图形表示。这些组可以代表现有scm的大量多样性。新的类型也允许更充分的识别和概念化-通过水库类型的方法-在SCM层面发生的不同水文和反应过程。
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引用次数: 0
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Blue-Green Systems
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