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Systematic Literature Review of Land Use Conflicts in Northern Sweden—Lessons Learned and Ways Forward 瑞典北部土地使用冲突的系统文献综述--经验教训和前进方向
Pub Date : 2024-06-06 DOI: 10.3390/resources13060077
Jerbelle Elomina, Ivana Živojinović
Land use conflicts are intensifying in Northern Sweden due to the increasing global demand for resources coupled with the green transition. In line with this, a thorough understanding of land use conflicts in the area is becoming necessary as economic activities expand and newer ones are developed. Hence, this paper aims to provide a systematic literature review of research on land use conflicts specific to Northern Sweden, focusing on various economic activities such as forestry, mining, tourism, energy sector and reindeer husbandry. Additionally, we aim to determine lessons learned and suggested ways forward based on a systematic review. We used Scopus and Web of Science on June 2023 and through descriptive statistical analysis of 33 articles, we summarized research trends and gaps. We found three main typologies of conflicts and five main themes of suggested ways forward. Recommendations agree that there should be a broader understanding of the underlying interests of the stakeholders; and there should be an inclusive, more participatory approach to discussing potential solutions, not to create an agreement but to come to an understanding. Beyond academic insights, the findings hold practical relevance for shaping effective land use policies. This paper offers valuable lessons that extend beyond the local context, informing broader discussions and policy considerations for sustainable land management in the larger Arctic setting, where similar challenges and resource demands are unfolding.
由于全球对资源的需求不断增加,再加上绿色转型,瑞典北部的土地使用冲突正在加剧。因此,随着经济活动的扩大和新经济活动的发展,有必要全面了解该地区的土地使用冲突。因此,本文旨在对瑞典北部的土地使用冲突研究进行系统的文献综述,重点关注林业、采矿业、旅游业、能源行业和驯鹿饲养业等各种经济活动。此外,我们还希望在系统性综述的基础上总结经验教训,并提出今后的发展方向。我们使用了 2023 年 6 月的 Scopus 和 Web of Science,通过对 33 篇文章进行描述性统计分析,总结了研究趋势和差距。我们发现了三种主要的冲突类型和五个主要的建议前进方向主题。这些建议一致认为,应该更广泛地了解利益相关者的根本利益;应该采用一种包容性更强的参与式方法来讨论潜在的解决方案,不是为了达成协议,而是为了达成谅解。除学术见解外,研究结果对于制定有效的土地利用政策也具有实际意义。本文提供的宝贵经验超出了当地的范围,可为更广泛的北极地区可持续土地管理的讨论和政策考虑提供信息,在北极地区,类似的挑战和资源需求也在不断出现。
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引用次数: 0
Natural Resource Optimization and Sustainability in Society 5.0: A Comprehensive Review 自然资源优化与社会 5.0 的可持续性:全面回顾
Pub Date : 2024-01-24 DOI: 10.3390/resources13020019
César Ramírez-Márquez, Thelma Posadas-Paredes, Alma Yunuen Raya-Tapia, J. M. Ponce-Ortega
In this study, we examine Society 5.0, defined as a future framework where advanced technologies like artificial intelligence (AI), the Internet of Things (IoT), and other digital innovations are integrated into society for sustainable resource management. Society 5.0 represents an evolution from the industrial focus of Industry 4.0, aiming for a harmonious balance between technological progress and human-centric values, consistent with the United Nations Sustainable Development Goals. Our methodology involves a detailed literature review, focusing on identifying and evaluating the roles of AI, IoT, and other emerging technologies in enhancing resource efficiency, particularly in the water and energy sectors, to minimize environmental impact. This approach allows us to present a comprehensive overview of current technological advancements and their potential applications in Society 5.0. Our study’s added value lies in its synthesis of diverse technological strategies, emphasizing the synergy between circular economy practices and sustainable economic development. We highlight the necessity for resilience and adaptability to ecological challenges and advocate for a collaborative, data-informed decision-making framework. Our findings portray Society 5.0 as a holistic model for addressing contemporary global challenges in resource management and conservation, projecting a future where technology aligns with sustainable, equitable, and human-centered development.
在本研究中,我们对社会 5.0 进行了探讨,社会 5.0 被定义为一种未来框架,在这一框架中,人工智能(AI)、物联网(IoT)等先进技术和其他数字创新技术将融入社会,实现可持续资源管理。社会 5.0 代表着从工业 4.0 的工业重点演变而来,旨在实现技术进步与以人为本的价值观之间的和谐平衡,与联合国可持续发展目标保持一致。我们的研究方法包括详细的文献综述,重点是识别和评估人工智能、物联网和其他新兴技术在提高资源效率方面的作用,尤其是在水和能源领域,以最大限度地减少对环境的影响。通过这种方法,我们可以全面概述当前的技术进步及其在 5.0 社会中的潜在应用。我们研究的附加值在于综合了各种技术战略,强调了循环经济实践与可持续经济发展之间的协同作用。我们强调必须具备应对生态挑战的复原力和适应力,并倡导建立一个以数据为依据的协作决策框架。我们的研究结果将 "社会 5.0 "描绘成一个应对当代全球资源管理和保护挑战的整体模式,预测了一个技术与可持续、公平和以人为本的发展相一致的未来。
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引用次数: 0
Saltwater Intrusion and Agricultural Land Use Change in Nga Nam, Soc Trang, Vietnam 越南朔庄雅南的海水入侵和农业用地变化
Pub Date : 2024-01-23 DOI: 10.3390/resources13020018
Phan Chi Nguyen, P. Vu, Nguyen Quoc Khuong, Huynh Vuong Thu Minh, Huynh Anh Vo
Under the effects of saltwater intrusion from rising sea water levels, climate change, and socioeconomic issues, the Nga Nam district in Vietnam has suffered damage to its agriculture and changes in agricultural land use. This study aimed to investigate the factors that influenced land use changes and to propose approaches to limit the changes in agricultural land use. The damage caused by saltwater intrusion on agricultural production was evaluated via the use of secondary data collected from the Department of Infrastructure Economics of the Nga Nam district in the period of 2010–2021. The results show that during the 2010–2015 period, agricultural production areas were affected in 2010, 2012, and 2015. In the period of 2015–2021, the trend of saltwater intrusion along the damaged area remarkably decreased due to the work of saltwater-preventing structures. In this period, the area of annual plants increased, while that of perennial trees decreased. In the area comprising annual plants, the area using the triple rice land use type converted into an area using the double rice and double rice–fish ones. Lands for perennial trees transitioned from mixed farming to specialized farming to raise the economic efficiency for farmers. These changes were affected by four main factors: the physical factor, the economy, society, and the environment. The environmental and economic factors were seen to play the most important role as drivers of changes in land use. The factors of saltwater intrusion and acid-sulfate-contaminated soil, consumer markets, floods, drought, profit, and investments were noted to be significant drivers in agricultural land use change. Thus, both structural and non-structural approaches are suggested to inhibit the safeguard changes in the future.
在海水水位上升造成的盐水入侵、气候变化和社会经济问题的影响下,越南雅南地区的农业受到破坏,农业用地也发生了变化。本研究旨在调查影响土地利用变化的因素,并提出限制农用土地利用变化的方法。通过使用从 Nga Nam 县基础设施经济部收集的 2010-2021 年期间二手数据,评估了盐水入侵对农业生产造成的损害。结果显示,在 2010-2015 年期间,农业生产区在 2010 年、2012 年和 2015 年受到影响。在 2015-2021 年期间,由于防盐水结构的工作,受损区域沿线的盐水入侵趋势明显减弱。在此期间,一年生植物面积增加,而多年生树木面积减少。在一年生植物种植区,三季稻种植区转变为双季稻和双季稻-鱼种植区。多年生树木用地从混合耕作过渡到专业耕作,以提高农民的经济效益。这些变化主要受四个因素的影响:自然因素、经济因素、社会因素和环境因素。环境和经济因素被认为是土地利用变化的最重要驱动因素。盐水入侵和酸性硫酸盐污染土壤、消费市场、洪水、干旱、利润和投资等因素被认为是农业用地变化的重要驱动力。因此,建议采用结构性和非结构性方法来抑制未来的保障性变化。
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引用次数: 0
Comparison of Mixed and Door-to-Door Systems for Urban Waste Collection in Terms of Effectiveness and Greenhouse Gas Emissions: A Case Study from Two Mountainous Italian Valleys 城市垃圾收集的混合系统和门到门系统在效率和温室气体排放方面的比较:意大利两个山区谷地的案例研究
Pub Date : 2024-01-22 DOI: 10.3390/resources13010017
Alberto Pietro Damiano Baltrocchi, Lucrezia Maggi, M. Carnevale Miino, V. Torretta, Elena Cristina Rada
Collecting urban solid waste (USW) is a critical and essential phase for proper waste management and valorization. To date, many data are available for large cities, but few studies have focused on low-density areas, such as mountainous regions. Considering this lack in the literature, this study aimed to compare two separate waste collection systems in two mountainous valleys in terms of effectiveness and GHG emissions. In the first scenario, a mixed collection system (door-to-door + centers) was used, while in the other, waste was separately collected by a full door-to-door system. The results suggested that the full door-to-door system achieved better performance than the mixed collection system (door-to-door + centers), with a fraction of separate waste collection compared to the unit equals (0.84 ± 0.01 vs. 0.79 ± 0.02). Moreover, the full door-to-door system represented the best option for collecting separate waste in mountainous areas in terms of GHG emissions, with 11.21 kgCO2, eq twaste−1 emitted vs. 15.62 kgCO2, eq twaste−1 in the case of the mixed system. Despite utilities emitting a higher amount of GHGs in the door-to-door scenario (4.66 kgCO2, eq inh−1 y−1), they were fully compensated for by the low GHG emissions from citizens in the mixed scenario (1.77 kgCO2, eq inh−1 y−1 vs. 6.65 kgCO2, eq inh−1 y−1). Given the low amount of data on this topic, this work could be considered as a pioneer study of waste management in mountainous areas by comparing the results of two systems regarding effectiveness and GHG emissions. The outcomes of this study could be helpful for waste utilities, institutional agencies, and local communities and also serve as a tool for decision-making in the case of comparing the different options for USW collection systems.
收集城市固体废物(USW)是妥善管理废物和实现废物价值化的关键和必要阶段。迄今为止,已有许多大城市的数据,但很少有研究关注山区等低密度地区。考虑到文献中的这一不足,本研究旨在从有效性和温室气体排放方面对两个山区谷地的两种独立垃圾收集系统进行比较。在第一种情况下,采用了混合收集系统(门到门 + 中心),而在另一种情况下,则采用完全门到门系统单独收集垃圾。结果表明,与混合收集系统(门到门 + 中心)相比,全门到门系统取得了更好的性能,与单位等量(0.84 ± 0.01 vs. 0.79 ± 0.02)相比,垃圾分类收集的比例更高。此外,就温室气体排放量而言,全上门系统是山区分类垃圾收集的最佳选择,排放量为 11.21 千克二氧化碳当量吨-1,而混合系统为 15.62 千克二氧化碳当量吨-1。尽管在 "门到门 "方案中,公共设施的温室气体排放量较高(4.66 kgCO2,eq inh-1 y-1),但在混合方案中,市民的温室气体排放量较低(1.77 kgCO2,eq inh-1 y-1 vs. 6.65 kgCO2,eq inh-1 y-1),完全弥补了公共设施的温室气体排放量。鉴于有关这一主题的数据较少,这项工作可被视为山区废物管理研究的先驱,通过比较两种制度在有效性和温室气体排放方面的结果。这项研究的结果可能会对废物处理公司、机构组织和当地社区有所帮助,同时也可作为比较不同的城市固体废物收集系统方案的决策工具。
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引用次数: 0
Microstructure and Mechanical Characterization of Rice Husks from the Tolima Region of Colombia 哥伦比亚托利马地区稻壳的微观结构和机械特性分析
Pub Date : 2024-01-19 DOI: 10.3390/resources13010016
Oscar Araque, Nelson Arzola, Ivonne X. Cerón
The under-utilization of rice husk, a milling by-product, demands attention due to its widespread disposal and limited usage. This research aims to assess the physical properties and mechanical behavior of three rice husk varieties (F 2000, Orizyca, and Panorama 394), to determine their strength capacities and potential applications. Mechanical properties are evaluated through a non-standardized tension test using a universal machine. Subsequent analyses include measuring the moisture content following ASTM D1348, determining the particle size distribution through ASAE Standard S319, and establishing the bulk density using ASAE Standard S269 Method 4. Mechanical resistance in the rice husk varieties ranged from 60 MPa to 130 MPa, with a particle density exceeding 300 kg/m3 and an average apparent density of 140 kg/m3. Scanning electron microscopy revealed the husk structures, identifying epidermis, hypodermis, and sub-hypodermis layers. The mechanical stress of the Orizyca variety was 1.89 times higher than that of F 2000, and 1.18 times higher than that of Panorama 394. Potential applications include brick manufacturing and thermoformed materials for Orizyca and Panorama 394, while F 2000 could be utilized for producing fuel briquettes or cardboard, among other possibilities.
稻壳是碾磨过程中产生的一种副产品,由于其被广泛丢弃且用途有限,其利用率不足的问题需要引起重视。本研究旨在评估三个稻壳品种(F 2000、Orizyca 和 Panorama 394)的物理特性和机械行为,以确定其强度能力和潜在应用。机械性能是通过使用万能机器进行非标准化拉力测试来评估的。随后的分析包括按照 ASTM D1348 测量含水量,按照 ASAE 标准 S319 确定粒度分布,以及按照 ASAE 标准 S269 方法 4 确定容重。稻壳品种的机械阻力从 60 兆帕到 130 兆帕不等,颗粒密度超过 300 千克/立方米,平均表观密度为 140 千克/立方米。扫描电子显微镜显示了稻壳的结构,确定了表皮层、下皮层和次下皮层。Orizyca 品种的机械应力是 F 2000 的 1.89 倍,是 Panorama 394 的 1.18 倍。Orizyca 和 Panorama 394 的潜在用途包括制砖和热成型材料,而 F 2000 则可用于生产燃料块或纸板等。
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引用次数: 0
The Use of Geosites in Education—A Case Study in Central Poland 地球卫星在教育中的应用--波兰中部案例研究
Pub Date : 2024-01-19 DOI: 10.3390/resources13010015
Wojciech Zgłobicki, Izabela Nowak, Bogusława Baran-Zgłobicka, Aleksandra Głuszek
One of the important ways to promote geoheritage values is to use geosites in school education. Particularly useful for this are nature reserves that include interesting geological and geomorphological sites. The area of Świętokrzyskie Province is one of the most interesting geological regions of Poland. In 2021, the Holy Cross Mountains UNESCO Global Geopark was established. The main objective of this study was to determine the school students’ knowledge of geoheritage sites and their use in geotourism and education. The province’s nature reserves are well accessible by transportation from school. Diverse geoheritage sites were selected for the assessment of their geotourism values. An assessment of their geotourism values was made. The problem of knowledge and perception of geoheritage was studied using a questionnaire survey among students of high schools located in the city of Starachowice. The results showed that despite the presence of sites of high value, unique in the country and Europe, they are rarely visited by students and even less frequently used in formal education (field classes). On the other hand, students declare that geoheritage assets can be treated as important tourism attractions. Researchers in the field of geoeducation and geotourism should place greater emphasis on disseminating this knowledge among teachers and the public. An opportunity for the development of geoeducation will certainly be the establishment of a geopark.
宣传地质遗产价值的重要方法之一是在学校教育中使用地质遗迹。包括有趣的地质和地貌遗址在内的自然保护区对此尤其有用。圣十字省是波兰最有趣的地质区域之一。2021 年,联合国教科文组织建立了圣十字山世界地质公园。本研究的主要目的是了解在校学生对地质遗迹的了解程度,以及地质遗迹在地质旅游和教育中的应用。从学校到该省的自然保护区交通便利。为评估其地质旅游价值,选择了不同的地质遗产地。对其地质旅游价值进行了评估。通过对斯塔拉霍维采(Starachowice)市高中学生进行问卷调查,研究了他们对地质遗产的了解和认知问题。调查结果表明,尽管存在全国乃至欧洲独一无二的高价值遗址,但学生们很少去参观,在正规教育(野外课程)中使用的次数更少。另一方面,学生们表示可以将地质遗产资产作为重要的旅游景点。地质教育和地质旅游领域的研究人员应更加重视向教师和公众传播这方面的知识。建立地质公园无疑是发展地质教育的一个契机。
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引用次数: 0
The Optimal Transportation Option in an Underground Hard Coal Mine: A Multi-Criteria Cost Analysis 地下硬煤矿的最佳运输方案:多标准成本分析
Pub Date : 2024-01-17 DOI: 10.3390/resources13010014
Patrycja Bąk, Marian Czesław Turek, Łukasz Bednarczyk, Izabela Jonek-Kowalska
The issue of transport in underground hard coal mines is very rarely described in the literature. The financial aspects of this issue are even less often analyzed. Publications in this area focus on technical issues and the safety of mining crews. More attention is paid to transport in open-pit mines. The above premises and practical needs imply the need to conduct economic analyses of transport systems in underground hard coal mines. This paper is a scientific communication, which presents the concept of a multi-criteria cost analysis as a tool to support the selection of the optimal transportation option in an underground hard coal mine. Considerations in this area have not been carried out in the relevant literature, and the problem of selecting a transportation option is a complex and necessary issue in the practice of underground mines with extensive mine workings. The methodology presented includes five cost criteria (costs of carrying out the transportation task; route expansion costs; rolling stock maintenance costs; depreciation costs; and additional personnel costs). The simultaneous application of criteria relating to utility properties in addition to cost criteria makes it possible to adopt a specific technical and organizational model of the transportation system based on the indication of the optimal solution, resulting from the mathematical construction of functions of objectives relating to utility and cost. The optimal variant of the designed system and configuration of the material transportation system in underground workings takes into consideration the following: (1) seven utility criteria (KU1—transportation task completion time; KU2—compatibility of transportation systems; KU3—continuous connectivity; KU4—co-use with other transportation tasks; KU5—safety; KU6—inconvenience; KU7—operation under overplanning conditions) and (2) five cost criteria (KK1—costs of implementing the transportation task; KK2—costs of route expansion; KK3—rolling stock maintenance costs; KK4—depreciation costs; KK5—additional personnel costs). Based on the aforementioned criteria, two objective functions are built for each option: utility and cost. They present divergent goals; therefore, they are non-cooperative functions. Both utility and costs strive for the maximum. In the developed methodology, an ideal point is usually a fictitious solution representing a set of maximum values among all the achievable values in a set of solutions, but it is impossible to achieve this simultaneously based on all the criteria. This point illustrates the maximum utility and lowest cost among the alternatives considered, which is obviously impossible for any of the variants to meet at the same time, although it indicates the possibilities of the technique and the range of costs. For the developed method, a so-called “PND” nadir point is also determined, representing the least-preferred level of achievement of all goals simultaneously, determined from the set of op
关于硬煤地下矿井的运输问题,文献中很少有描述。对这一问题的财务方面的分析更是少之又少。这方面的文献主要集中在技术问题和采矿人员的安全问题上。露天煤矿的运输问题受到更多关注。根据上述前提和实际需要,有必要对地下硬煤矿的运输系统进行经济分析。本文是一篇科学论文,提出了多标准成本分析的概念,作为支持选择硬煤矿井下最佳运输方案的工具。在相关文献中还没有对这一领域进行过考虑,而选择运输方案的问题在矿井工作面广泛的地下煤矿实践中是一个复杂而又必要的问题。所提出的方法包括五项成本标准(执行运输任务的成本、线路扩展成本、机车车辆维护成本、折旧成本和额外的人员成本)。除了成本标准外,还同时采用了与效用属性有关的标准,这就有可能在最佳解决方案指示的基础上,通过对效用和成本目标函数的数学构建,采用特定的运输系统技术和组织模式。所设计系统的最佳变体和井下材料运输系统的配置考虑了以下因素:(1) 七项效用标准(KU1-运输任务完成时间;KU2-运输系统的兼容性;KU3-连续连通性;KU4-与其他运输任务共同使用;KU5-安全性;KU6-不方便性;KU7-超计划条件下的运行);(2) 五项成本标准(KK1-执行运输任务的成本;KK2-路线扩展成本;KK3-滚动库存维护成本;KK4-折旧成本;KK5-额外的人员成本)。根据上述标准,每个方案都有两个目标函数:效用和成本。它们提出了不同的目标,因此是非合作函数。效用和成本都追求最大值。在所开发的方法中,理想点通常是一个虚构的解决方案,代表了一组解决方案中所有可实现值中的最大值,但根据所有标准,不可能同时实现这一点。这一点说明了所考虑的备选方案中效用最大、成本最低的方案,虽然它表明了技术的可能性和成本的范围,但显然任何一个备选方案都不可能同时达到这一点。对于所开发的方法,还确定了一个所谓的 "PND "最低点,代表同时实现所有目标的最不可取的水平,它是从帕累托意义上的最优点集合中确定的。所进行的概念性考虑的独创性在于:填补了复杂运输系统评估经济方法的空白;将考虑因素纳入地下矿山复杂运输系统的发展趋势中;将考虑因素集中在投资前阶段,从而有可能在发生支出之前优化成本。
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引用次数: 0
Groundwater Ecosystem Services: Redefining and Operationalizing the Concept 地下水生态系统服务:地下水生态系统服务:概念的重新定义与操作化
Pub Date : 2024-01-16 DOI: 10.3390/resources13010013
Vasileios G. Iliopoulos, D. Damigos
In the last decade, the publication of research studies in the field of groundwater ecosystem services and their classification has increased dramatically. Several academic and other institutions have developed ecosystem service classification systems for use in environmental policy research. However, the existing classification systems need to be optimized in the following areas: (a) the weak correlation between concepts and the definitions assigned, which creates double counting in economic valuation, (b) the absence of correlation of the concept of use value with the ecosystem service, (c) the non-categorization of final and intermediate services, and (d) the overlapping of wetland, soil, and groundwater regulating ecosystem services. Our research aims, through the results of a literature analysis and the synthesis of the results of an expert consultation process, to develop a unified categorization system for groundwater ecosystem services. In the context of the conceptualization of groundwater ecosystem services, this research implemented an expert judging elicitation process where subject discussions and targeted interviews were performed, combined with a literature review analysis. Through the completion of a specific questionnaire and expert interviews, a new groundwater ecosystem services classification system, namely GROUNDWES, was established.
在过去十年中,地下水生态系统服务及其分类领域的研究出版物急剧增加。一些学术机构和其他机构开发了生态系统服务分类系统,用于环境政策研究。然而,现有的分类系统需要在以下方面进行优化:(a) 概念与定义之间的相关性不强,造成经济估值中的重复计算;(b) 使用价值的概念与生态系统服务之间缺乏相关性;(c) 最终服务和中间服务未分类;(d) 湿地、土壤和地下水调节生态系统服务重叠。我们的研究旨在通过文献分析结果和专家咨询结果的综合,为地下水生态系统服务建立一个统一的分类系统。在地下水生态系统服务概念化的背景下,本研究实施了专家评判征询过程,即进行主题讨论和有针对性的访谈,并结合文献综述分析。通过完成特定的调查问卷和专家访谈,建立了新的地下水生态系统服务分类系统,即 GROUNDWES。
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引用次数: 0
Comparison of Trenchless and Excavation Technologies in the Restoration of a Sewage Network and Their Carbon Footprints 污水管网修复中的非开挖技术和挖掘技术及其碳足迹比较
Pub Date : 2024-01-15 DOI: 10.3390/resources13010012
T. Chorazy, P. Hlavínek, J. Raček, K. Pietrucha-Urbanik, B. Tchórzewska-Cieślak, Š. Keprdová, Zdeněk Dufek
The restoration of aging sewer networks is a fundamental remediation approach with the aim of renewing or improving existing systems. Remediation methods include repair, renovation, and replacement (renewal). The restoration of a sewer network itself can be performed using either excavation or trenchless technologies. While these technologies offer various advantages, they also present disadvantages. The choice of a restoration technology depends on numerous parameters, including economic factors and local conditions (such as the construction of the existing sewage network, available working space, traffic load, and environmental safety restrictions). In addition to the parameters influencing the choice of restoration technology, recent considerations have been given to constraints related to greenhouse gas emissions and the corresponding carbon footprint. Carbon footprint serves as an indicator of the restoration activity’s dependence on fossil fuels, both during implementation and operation. In the 21st century, concerns regarding carbon footprints have rapidly escalated. The reduction in carbon footprints is a crucial objective from both an economic and an ecological point of view. This article specifically addresses the prospects of monitoring the carbon footprint concerning the partial restoration of a sewer network within the historical core of the city of Brno, located in the Czech Republic. This aspect constitutes the unique and innovative contribution of the paper. The intensity of the energy demand of excavation and trenchless technologies is utilized as a direct measure of the carbon footprint of each technology. The comparative assessment demonstrates that the trenchless technology used achieves a reduction of 59.2% in CO2 emissions compared to the excavation technology. The carbon footprint of Variant 1 (trenchless technology) is 9.91 t CO2 eq., while the carbon footprint of Variant 2 (excavation technology) is 24.29 t CO2 eq. The restoration of open pipelines produces more emissions due to the higher energy consumption, making it more expensive in terms of fuel costs, waste disposal costs, and the corresponding environmental hazards.
修复老化的下水道网络是一种基本的修复方法,目的是更新或改善现有系统。修复方法包括维修、翻新和更换(更新)。修复下水道网络本身可采用挖掘或非开挖技术。虽然这些技术具有各种优点,但也存在缺点。修复技术的选择取决于许多参数,包括经济因素和当地条件(如现有污水管网的建设、可用工作空间、交通负荷和环境安全限制)。除了影响修复技术选择的参数外,最近还考虑了与温室气体排放和相应的碳足迹有关的限制因素。碳足迹是修复活动在实施和运行过程中对化石燃料依赖程度的指标。在 21 世纪,人们对碳足迹的关注迅速升级。从经济和生态角度来看,减少碳足迹都是一个至关重要的目标。本文特别探讨了对位于捷克共和国布尔诺市历史核心区的下水道网络进行部分修复的碳足迹监测前景。这也是本文的独特创新之处。挖掘和非开挖技术的能源需求强度被用来直接衡量每种技术的碳足迹。比较评估表明,与挖掘技术相比,采用非开挖技术可减少 59.2% 的二氧化碳排放量。变量 1(非开挖技术)的碳足迹为 9.91 吨二氧化碳当量,而变量 2(开挖技术)的碳足迹为 24.29 吨二氧化碳当量。由于能源消耗较高,开放式管道修复会产生更多的排放,因此在燃料成本、废物处理成本以及相应的环境危害方面成本更高。
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引用次数: 0
Success Factors and Challenges: Implications of Real Options Valuation of Constructed Wetlands as Nature-Based Solutions for Wastewater Treatment 成功因素与挑战:对作为基于自然的废水处理解决方案的人工湿地进行实物期权评估的意义
Pub Date : 2024-01-14 DOI: 10.3390/resources13010011
Casper Boongaling Agaton, Patricia Marie Caparas Guila
Constructed wetlands (CWs) are engineered water treatment systems that mimic the features and functions of natural wetlands. As a nature-based solution (NBS) for wastewater treatment, CWs are sustainable and cost-effective while providing various ecosystem services. However, their widespread application faces several uncertainties, particularly in developing countries. This study aims to analyze the success factors and challenges in implementing CW projects. Using the case of successful CWs in Bayawan City in the Philippines, this study surveyed 270 household heads from the community benefiting from the CWs and interviewed various CW stakeholders, including the project planner, management, community leader, social workers, and CW workers. The results showed that 89% of the respondents were aware of the existence of CWs in the community and 73% believed in their long-term sustainability. Among the identified factors for the successful implementation of the CW project were government support (43%), good governance (32%), and public support (14%). On the other hand, the implementation was challenged by improper maintenance (63%), overcrowding in the community (11%), foul smells (4%), funding (4%), and climate-related uncertainties, including natural calamities (4%), flooding (7%), earthquakes (4%), and sea level rise (11%). The implications of these success factors and challenges were discussed in the application of real options valuation to CW projects by incorporating the identified uncertainties into flexible decision making in the scaling up and widespread implementation of a more sustainable NBS to water resources management.
人工湿地 (CW) 是模仿自然湿地特征和功能的工程水处理系统。作为一种基于自然的废水处理解决方案(NBS),人工湿地具有可持续性和成本效益,同时还能提供各种生态系统服务。然而,它们的广泛应用面临着一些不确定因素,尤其是在发展中国家。本研究旨在分析实施化武项目的成功因素和挑战。本研究以菲律宾巴亚万市成功实施的化武项目为例,调查了受益于化武项目的 270 户社区户主,并采访了化武项目的各利益相关方,包括项目规划者、管理层、社区领导、社会工作者和化武工人。结果表明,89%的受访者知道社区中存在化武,73%的受访者相信化武的长期可持续性。成功实施社区福利项目的因素包括政府支持(43%)、良好治理(32%)和公众支持(14%)。另一方面,维护不当(63%)、社区过于拥挤(11%)、臭味(4%)、资金(4%)以及与气候有关的不确定因素(包括自然灾害(4%)、洪水(7%)、地震(4%)和海平面上升(11%))也给项目的实施带来了挑战。通过将已确定的不确定性纳入灵活决策,讨论了这些成功因素和挑战在将实物期权估价应用于基本工程项目时的影响,从而在水资源管理中推广和广泛实施更可持续的国家预算系统。
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