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Urbanization and Its Impact on Environmental Sustainability 城市化及其对环境可持续性的影响
Pub Date : 2024-01-15 DOI: 10.47941/jags.1624
Noella James
Purpose: The main objective of this study was to assess urbanization and its impact on environmental sustainability. Methodology: The study adopted a desktop research methodology. Desk research refers to secondary data or that which can be collected without fieldwork. Desk research is basically involved in collecting data from existing resources hence it is often considered a low cost technique as compared to field research, as the main cost is involved in executive’s time, telephone charges and directories. Thus, the study relied on already published studies, reports and statistics. This secondary data was easily accessed through the online journals and library. Findings: The findings revealed that there exists a contextual and methodological gap relating to urbanization and its impact on environmental sustainability. The study highlighted the environmental challenges posed by rapid urbanization, including habitat loss, resource consumption, greenhouse gas emissions, and environmental justice issues. However, it also underscores the potential for sustainable urban planning and innovative solutions to mitigate these challenges. To achieve environmental sustainability in urban areas, the study suggests the need for equitable development policies, resource-efficient technologies, and conservation efforts. Overall, the findings emphasize the importance of addressing the complex relationship between urbanization and the environment to ensure a sustainable future for urban populations and ecosystems. Unique Contribution to Theory, Practice and Policy: The Urban Ecology Theory, Environmental Kuznets Curve (EKC) theory and the Theory of Planned Behaviour (TPB) may be used to anchor future studies on urbanization and environmental sustainability. The study recommended that to promote environmental sustainability amidst rapid urbanization, comprehensive urban planning, embracing clean and renewable energy sources, improving water management and sanitation, and fostering environmental education and awareness are essential. Implementing these recommendations can lead to more eco-friendly cities with reduced resource consumption, lower pollution levels, and engaged, environmentally conscious communities, ultimately benefiting both present and future generations.
目的:本研究的主要目的是评估城市化及其对环境可持续性的影响。研究方法:本研究采用案头研究方法。案头研究指的是二手数据或无需实地考察即可收集的数据。案头研究基本上是从现有资源中收集数据,因此,与实地研究相比,案头研究通常被认为是一种低成本技术,因为主要成本涉及执行人员的时间、电话费和目录。因此,本研究依赖于已出版的研究、报告和统计数据。这些二手数据可通过在线期刊和图书馆轻松获取。研究结果研究结果表明,在城市化及其对环境可持续性的影响方面存在背景和方法上的差距。研究强调了快速城市化带来的环境挑战,包括栖息地丧失、资源消耗、温室气体排放和环境正义问题。不过,它也强调了可持续城市规划和创新解决方案在缓解这些挑战方面的潜力。为了实现城市地区环境的可持续发展,研究建议需要制定公平的发展政策、采用资源节约型技术并努力保护环境。总之,研究结果强调了解决城市化与环境之间复杂关系的重要性,以确保城市人口和生态系统的可持续未来。对理论、实践和政策的独特贡献:城市生态学理论、环境库兹涅茨曲线(EKC)理论和计划行为理论(TPB)可用于今后有关城市化和环境可持续性的研究。研究建议,要在快速城市化过程中促进环境的可持续发展,就必须进行全面的城市规划,采用清洁和可再生能源,改善水资源管理和卫生条件,并加强环境教育和提高环境意识。落实这些建议可以使城市更加生态友好,减少资源消耗,降低污染水平,使社区参与进来,提高环保意识,最终造福当代和子孙后代。
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引用次数: 0
Tourism Impact on the Cultural Heritage of Countries in the Middle East 旅游业对中东国家文化遗产的影响
Pub Date : 2024-01-15 DOI: 10.47941/jags.1623
Nadia Ahmed
Purpose: The main objective of this study was to explore the tourism impact on cultural heritage of countries in the Middle East. Methodology: The study adopted a desktop research methodology. Desk research refers to secondary data or that which can be collected without fieldwork. Desk research is basically involved in collecting data from existing resources hence it is often considered a low cost technique as compared to field research, as the main cost is involved in executive’s time, telephone charges and directories. Thus, the study relied on already published studies, reports and statistics. This secondary data was easily accessed through the online journals and library. Findings: The findings revealed that there exists a contextual and methodological gap relating to the tourism impact on cultural heritage of countries in the Middle East. Preliminary empirical review revealed that tourism has both positive and negative effects on the region's cultural heritage. While it significantly contributes to the economy and fosters cultural exchange, it also poses challenges such as overcrowding and cultural commodification. The study emphasizes the importance of sustainable tourism practices and responsible heritage management. Cultural ecology, cultural conservation, and dependency theories provided valuable frameworks for understanding this complex relationship. The findings benefit policymakers, site managers, local communities, and the tourism industry by guiding the development of strategies that protect cultural heritage while harnessing tourism's economic potential, contributing to a more balanced approach to tourism development in the Middle East. Unique Contribution to Theory, Practice and Policy: The Cultural Ecology Theory, Cultural Conservation Theory and the Dependency Theory may be used to anchor future studies on cultural heritage. The study suggested a set of comprehensive recommendations. These recommendations emphasize the importance of heritage conservation and responsible tourism practices. They include the development of robust heritage management plans, enhanced visitor education, and community engagement. Encouraging tourism diversification, sustainable infrastructure development, and capacity building are also essential. Furthermore, the study highlights the significance of ongoing research, marketing strategies that promote cultural richness, and intergovernmental coordination. By implementing these measures, Middle Eastern countries can achieve a harmonious balance between cultural heritage preservation and the economic benefits of tourism, ensuring the long-term sustainability of both.
目的:本研究的主要目的是探讨旅游业对中东国家文化遗产的影响。研究方法:本研究采用案头研究方法。案头研究指的是二手数据或无需实地考察即可收集到的数据。案头研究基本上是从现有资源中收集数据,因此与实地研究相比,案头研究通常被认为是一种低成本技术,因为主要成本涉及执行人员的时间、电话费和目录。因此,本研究依赖于已出版的研究、报告和统计数据。这些二手数据可通过在线期刊和图书馆轻松获取。研究结果研究结果表明,在旅游业对中东国家文化遗产的影响方面存在背景和方法上的差距。初步实证审查显示,旅游业对该地区的文化遗产既有积极影响,也有消极影响。旅游业在极大地促进经济发展和文化交流的同时,也带来了诸如过度拥挤和文化商品化等挑战。研究强调了可持续旅游实践和负责任的遗产管理的重要性。文化生态学、文化保护和依赖理论为理解这种复杂的关系提供了宝贵的框架。研究结果有利于政策制定者、遗址管理者、当地社区和旅游业,可指导制定既能保护文化遗产又能利用旅游业经济潜力的战略,从而为中东地区旅游业的更均衡发展做出贡献。对理论、实践和政策的独特贡献:文化生态理论、文化保护理论和依赖理论可用于今后的文化遗产研究。研究提出了一系列全面的建议。这些建议强调了遗产保护和负责任旅游做法的重要性。其中包括制定强有力的遗产管理计划、加强游客教育和社区参与。鼓励旅游业多样化、可持续基础设施发展和能力建设也至关重要。此外,研究还强调了持续研究、促进文化丰富性的营销战略和政府间协调的重要性。通过实施这些措施,中东国家可以在文化遗产保护和旅游业经济效益之间实现和谐平衡,确保两者的长期可持续性。
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引用次数: 0
The Applications of Geographic Information Systems (GIS) in Public Health 地理信息系统 (GIS) 在公共卫生领域的应用
Pub Date : 2024-01-15 DOI: 10.47941/jags.1620
Sonia Jones
Purpose: The main objective of this study was to investigate the applications of Geographical Information Systems (GIS) in public health. Methodology: The study adopted a desktop research methodology. Desk research refers to secondary data or that which can be collected without fieldwork. Desk research is basically involved in collecting data from existing resources hence it is often considered a low cost technique as compared to field research, as the main cost is involved in executive’s time, telephone charges and directories. Thus, the study relied on already published studies, reports and statistics. This secondary data was easily accessed through the online journals and library. Findings: The findings revealed that there exists a contextual and methodological gap relating to the applications of Geographical Information Systems (GIS) in public health. Preliminary empirical review revealed how GIS facilitates disease mapping and surveillance, improves healthcare access, addresses health disparities, assesses environmental health risks, and aids in understanding the effects of climate change on public health. The findings underscore GIS as a transformative tool, offering valuable insights and solutions for public health practitioners and policymakers striving to improve health outcomes and create more equitable communities in the face of evolving challenges. Unique Contribution to Theory, Practice and Policy: The Diffusion of Innovations Theory (DOI), Health Belief Model (HBM) and the Ecological Systems Theory may be used to anchor future studies on the application of Geographic Information System, (GIS) recommendations made include investing in GIS training for public health professionals, integrating GIS into policymaking, and conducting region-specific research to tailor GIS applications to local contexts. These measures aim to strengthen the capacity of public health agencies, enhance decision-making processes, and develop evidence-based guidelines for the effective use of GIS in public health, ultimately improving health outcomes and equity.
目的:本研究的主要目的是调查地理信息系统 (GIS) 在公共卫生领域的应用情况。研究方法:本研究采用案头研究方法。案头研究指的是二手数据或无需实地考察即可收集到的数据。案头研究基本上是从现有资源中收集数据,因此与实地研究相比,案头研究通常被认为是一种低成本技术,因为主要成本涉及执行人员的时间、电话费和目录。因此,本研究依赖于已出版的研究、报告和统计数据。这些二手数据可通过在线期刊和图书馆轻松获取。研究结果研究结果表明,地理信息系统(GIS)在公共卫生领域的应用在背景和方法上存在差距。初步实证审查显示,地理信息系统如何促进疾病绘图和监测、改善医疗保健服务、解决健康差异、评估环境健康风险,以及帮助了解气候变化对公共健康的影响。研究结果强调了 GIS 作为一种变革性工具的作用,为公共卫生从业人员和政策制定者提供了宝贵的见解和解决方案,帮助他们在面对不断变化的挑战时,努力改善卫生成果,创建更加公平的社区。对理论、实践和政策的独特贡献:创新扩散理论(DOI)、健康信念模型(HBM)和生态系统论可用于今后有关地理信息系统应用的研究,提出的建议包括投资于公共卫生专业人员的地理信息系统培训,将地理信息系统纳入决策,以及开展针对特定地区的研究,使地理信息系统的应用适合当地情况。这些措施旨在加强公共卫生机构的能力,强化决策过程,并为在公共卫生领域有效使用 GIS 制定循证准则,最终改善卫生成果和公平性。
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引用次数: 0
Remote Sensing for Deforestation in Rural Areas of Ghana 加纳农村地区毁林遥感技术
Pub Date : 2024-01-15 DOI: 10.47941/jags.1622
Patience Appiah
Purpose: The main objective of this study was to investigate remote sensing technology for deforestation in rural areas of Ghana. Methodology: The study adopted a desktop research methodology. Desk research refers to secondary data or that which can be collected without fieldwork. Desk research is basically involved in collecting data from existing resources hence it is often considered a low cost technique as compared to field research, as the main cost is involved in executive’s time, telephone charges and directories. Thus, the study relied on already published studies, reports and statistics. This secondary data was easily accessed through the online journals and library. Findings: The findings revealed that there exists a contextual and methodological gap relating to remote sensing for deforestation in rural areas of Ghana. Preliminary empirical review illuminated the multifaceted nature of deforestation in this region. It harnessed remote sensing technology and drew upon theories such as environmental determinism, Land-Use and Land-Cover Change (LUCC), and spatial diffusion to unveil the complex drivers and spatial patterns of deforestation. These findings underscore the crucial role of the natural environment, human activities, and diffusion processes in shaping deforestation dynamics. The study's relevance extends to policymakers, NGOs, and local communities, offering a foundation for evidence-based decision-making and sustainable land management practices that balance economic development with environmental conservation. Ultimately, this interdisciplinary approach enhances our understanding of deforestation and informs strategies to address this pressing environmental challenge. Unique Contribution to Theory, Practice and Policy: Environmental Determinism Model, Land-Use and Land-Cover Change (LUCC) Theory and the Spatial Diffusion Theory may be used to anchor future studies on deforestation. Based on the study's findings on "remote sensing for deforestation in rural areas of Ghana," key recommendations include strengthening forest conservation policies, enhancing remote sensing capacity for monitoring, promoting community engagement and education on forest conservation, and emphasizing continued research and monitoring efforts to adapt and refine conservation strategies in response to evolving deforestation patterns and drivers. These recommendations aim to mitigate the impacts of deforestation, protect vital ecosystems, and support the livelihoods of local communities in rural Ghana.
目的:本研究的主要目的是调查加纳农村地区森林砍伐的遥感技术。研究方法:本研究采用案头研究方法。案头研究指的是二手数据或无需实地考察即可收集到的数据。案头研究基本上是从现有资源中收集数据,因此,与实地研究相比,案头研究通常被认为是一种低成本技术,因为主要成本涉及执行人员的时间、电话费和目录。因此,本研究依赖于已出版的研究、报告和统计数据。这些二手数据可通过在线期刊和图书馆轻松获取。研究结果研究结果表明,在加纳农村地区森林砍伐遥感方面存在背景和方法上的差距。初步实证审查揭示了该地区森林砍伐的多面性。它利用遥感技术,并借鉴环境决定论、土地利用和土地覆被变化(LUCC)以及空间扩散等理论,揭示了毁林的复杂驱动因素和空间模式。这些发现强调了自然环境、人类活动和扩散过程在形成毁林动态中的关键作用。这项研究对政策制定者、非政府组织和当地社区具有重要意义,为基于证据的决策和可持续土地管理实践提供了基础,从而在经济发展和环境保护之间取得平衡。最终,这种跨学科方法将加深我们对森林砍伐的理解,并为应对这一紧迫环境挑战的战略提供依据。对理论、实践和政策的独特贡献:环境决定论模型、土地利用和土地覆被变化(LUCC)理论以及空间扩散理论可用于今后的森林砍伐研究。根据 "加纳农村地区森林砍伐遥感 "的研究结果,主要建议包括加强森林保护政策、提高遥感监测能力、促进社区参与和森林保护教育,以及强调继续开展研究和监测工作,以便根据不断变化的森林砍伐模式和驱动因素调整和完善保护战略。这些建议旨在减轻毁林的影响,保护重要的生态系统,支持加纳农村地区当地社区的生计。
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引用次数: 0
Ecosystem Services and Urban Planning 生态系统服务与城市规划
Pub Date : 2024-01-15 DOI: 10.47941/jags.1621
Savun Sangha
Purpose: The main objective of the study was to explore ecosystem services and urban planning. Methodology: The study adopted a desktop research methodology. Desk research refers to secondary data or that which can be collected without fieldwork. Desk research is basically involved in collecting data from existing resources hence it is often considered a low cost technique as compared to field research, as the main cost is involved in executive’s time, telephone charges and directories. Thus, the study relied on already published studies, reports and statistics. This secondary data was easily accessed through the online journals and library. Findings: The findings revealed that there exists a contextual and methodological gap relating to ecosystem services and urban planning. Preliminary empirical review emphasized the need for sustainable urban planning practices that integrate ecological considerations, prioritize green infrastructure and biodiversity conservation, and address disparities in access to ecosystem services. Urban planners and policymakers are key actors in ensuring the well-being of urban populations and the environment, making informed decisions about land use, transportation, and sustainability practices crucial. These findings have implications for environmental advocacy groups and policymakers, as they underscore the importance of advocating for eco-friendly urban development to protect and enhance critical ecosystem services, ultimately creating more resilient and equitable cities that benefit both people and the environment. Unique Contribution to Theory, Practice and Policy: The Urban Political Ecology Theory (UPE), Ecological Modernization Theory and Resilience theory may be used to anchor future studies on ecosystem services. The study provided recommendations to enhance urban planning practices. It suggests integrating ecosystem services into planning processes, emphasizing the importance of green infrastructure and biodiversity conservation within cities, and promoting community engagement and collaboration among stakeholders. These recommendations aim to create more resilient and sustainable urban environments that prioritize the well-being of residents while safeguarding and enhancing the valuable ecosystem services urban areas provide.
目的:本研究的主要目的是探讨生态系统服务和城市规划。研究方法:本研究采用案头研究方法。案头研究指的是二手数据或无需实地考察即可收集的数据。案头研究基本上是从现有资源中收集数据,因此与实地研究相比,案头研究通常被认为是一种低成本技术,因为主要成本涉及执行人员的时间、电话费和目录。因此,本研究依赖于已出版的研究、报告和统计数据。这些二手数据可通过在线期刊和图书馆轻松获取。研究结果研究结果表明,在生态系统服务和城市规划方面存在背景和方法上的差距。初步实证审查强调了可持续城市规划实践的必要性,这些实践应纳入生态考虑因素,优先考虑绿色基础设施和生物多样性保护,并解决获得生态系统服务方面的差异。城市规划者和政策制定者是确保城市人口和环境福祉的关键角色,因此有关土地利用、交通和可持续发展实践的明智决策至关重要。这些发现对环保倡导团体和政策制定者具有重要意义,因为它们强调了倡导生态友好型城市发展以保护和增强关键生态系统服务的重要性,最终创建更具复原力、更公平的城市,使人类和环境共同受益。对理论、实践和政策的独特贡献:城市政治生态学理论 (UPE)、生态现代化理论和复原力理论可用于今后的生态系统服务研究。该研究为加强城市规划实践提供了建议。它建议将生态系统服务纳入规划过程,强调城市中绿色基础设施和生物多样性保护的重要性,并促进社区参与和利益相关者之间的合作。这些建议旨在创造更具弹性和可持续发展的城市环境,优先考虑居民的福祉,同时保护和加强城市地区提供的宝贵生态系统服务。
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引用次数: 0
Geography Teacher Receptiveness for the Implementation of CBC in Eastern Africa Secondary Schools. A Critical Literature Review 东非中学地理教师对实施CBC的接受程度。批判性文献综述
Pub Date : 2022-11-23 DOI: 10.47941/jags.1135
Mary Mundine Mundine
Purpose: The curriculum transition and implementation involves changing the perceptions of the tutors, lecturers, teachers, learners, parents and policy makers. The overall objective of this study was to examine Geography teacher receptiveness for the implementation of CBC in Eastern Africa secondary schools. A critical literature review Methodology: The paper used a desk study review methodology where relevant empirical literature was reviewed to identify main themes and to extract knowledge gaps. Findings: The findings of the study concluded that most of head teachers and geography teachers had limited understanding of the concept of the CBC. However, some of the respondents agreed that they were to an extent ready to implement the CBC in secondary schools if in-serviced in advance one year before actual implementation. It is therefore, concluded a situation analysis for teachers’ preparedness in other social science disciplines for the  implementation of the CBC in secondary schools should be undertaken. Hence, there should be consistent re-training of teachers and schools’ administrators for effective implementation of the new curriculum. Unique Contribution to Theory, Policy and Practice: The study recommended that there is need to ensure that teachers are well motivated for classroom instruction. In addition, all secondary schools should have enough classes with adequate space, electricity and internet connectivity to allow effective teaching and learning activities. In that light, literature support that, there is need to assess how CBC will be implemented to gain an understanding on its effectiveness. Furthermore, effective curriculum implementation can only occur in the context of all components and aspects viewed and implemented in integrated ways.
目的:课程转型与实施涉及到改变导师、讲师、教师、学习者、家长和政策制定者的观念。本研究的总体目标是考察东非中学地理教师对实施CBC的接受程度。批判性文献回顾方法:本文采用案头研究回顾方法,对相关的实证文献进行回顾,以确定主题并提取知识空白。研究发现:大多数班主任和地理教师对CBC概念的理解有限。然而,部分回应机构同意,如果在实际推行前一年,他们已在一定程度上准备好在中学推行校本服务。因此,结论是,应该对其他社会科学学科的教师在中学实施CBC的准备情况进行分析。因此,应该持续不断地对教师和学校行政人员进行再培训,以便有效地实施新课程。对理论、政策和实践的独特贡献:研究建议有必要确保教师在课堂教学中有良好的积极性。此外,所有中学都应该有足够的班级,有足够的空间、电力和互联网连接,以便有效地进行教学活动。鉴于此,文献支持,有必要评估如何实施CBC,以了解其有效性。此外,有效的课程实施只能发生在以综合方式看待和实施所有组成部分和方面的背景下。
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引用次数: 0
Influence of Geography on Various Career Choices in Africa. A Critical Literature Review 地理对非洲各种职业选择的影响。批判性文献综述
Pub Date : 2022-11-23 DOI: 10.47941/jags.1134
Robert Kariuki Kariuki
Purpose: Education and training should therefore consider the role of geography in instilling learners with basic foundation skills to tackle the various challenges faced in the society. The overall objective of this study was to examine influence of influence of Geography on various career choices in Africa. A critical literature review Methodology: The paper used a desk study review methodology where relevant empirical literature was reviewed to identify main themes and to extract knowledge gaps. Findings: The findings of the study indicate that a large percentage of students aspire to pursue careers that are related to Geographic Information systems (GIS) and cartography. Careers in economic geography and physical geography follow closely. The least aspired careers by students are those related to geographic education and regional geography. This shows that learners aspire for careers that are related to information and communication technology because GIS entails use of computers while cartography also entails use of computer technology such as Google maps and Global Positioning System (GPS).The fact that geography has a topic on map interpretation makes the learners to be familiar with map work; this could also be a reason why they have an interest in cartography. Unique Contribution to Theory, Policy and Practice: The study recommends that the importance of geography subject should be emphasized on learners at the early stages of secondary school such as form one and two. This will enable the learners to make informed subject choice because it will have an impact on their career prospects. Students who love geography subject should be encouraged to study it and encouraged to pursue careers related to geography in tertiary colleges and university. More learners should be encouraged by teachers and parents to choose geography because it covers a wide scope in terms of socio-economic activities that man is involved in. This will make the learner to be an all-round person who can bring development to the society.
目的:因此,教育和培训应考虑地理在向学习者灌输基本基础技能以应对社会面临的各种挑战方面的作用。本研究的总体目标是考察地理对非洲各种职业选择的影响。批判性文献回顾方法:本文采用案头研究回顾方法,对相关的实证文献进行回顾,以确定主题并提取知识空白。研究结果:研究结果表明,很大比例的学生渴望从事与地理信息系统(GIS)和制图相关的职业。经济地理学和自然地理学的职业紧随其后。学生最不期望的职业是地理教育和区域地理相关的职业。这表明学习者渴望从事与信息和通信技术相关的职业,因为地理信息系统需要使用计算机,而制图也需要使用计算机技术,如谷歌地图和全球定位系统(GPS)。地理开设地图解读专题,使学习者熟悉地图工作;这也可能是他们对制图感兴趣的一个原因。对理论、政策和实践的独特贡献:研究建议在中学早期阶段,如中一二阶段,应强调地理学科的重要性。这将使学习者能够做出明智的学科选择,因为这将对他们的职业前景产生影响。应该鼓励热爱地理学科的学生学习地理,鼓励他们在高等院校从事与地理相关的职业。老师和家长应该鼓励更多的学习者选择地理,因为它涵盖了人类所参与的社会经济活动的广泛范围。这将使学习者成为一个全面的人,为社会带来发展。
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引用次数: 0
Influence of Teachers’ Attitude on Students’ Geography Performance in Public Schools. A Critical Literature Review 公立学校教师态度对学生地理成绩的影响批判性文献综述
Pub Date : 2022-11-23 DOI: 10.47941/jags.1133
Robert Kariuki Kariuki
Purpose: The subject geography is taught with the objective that learners will acquire basic foundation skills so as to propel them towards making valuable contributions to the society. The overall objective of this study was to examine influence of teachers’ attitude on students’ geography performance in public schools. A critical literature review Methodology: The paper used a desk study review methodology where relevant empirical literature was reviewed to identify main themes and to extract knowledge gaps. Findings: The findings of the study concluded that learners choose the subject of geography because they love and understand it. The learners have in mind the careers that they intend to pursue in future when they choose geography. Geography’s diversity and scope also appealed to learners as a reason for choosing geography Friends have little influence in career aspiration choice. The teacher has an influence on the learner’s choice for geography. Unique Contribution to Theory, Policy and Practice: Geography subject is relevant in understanding the major problems that face the society today. The subject also contributes in better understanding of the environment. Geography should be made compulsory among all the secondary school students because its importance in attaining a clean environment and sustainable development cannot be underestimated. The teacher should relate the problems faced in the society to the content that is being taught so that learners can have a real life experience on the aspects that they learn in class. This will boost the subject’s importance in understanding the various problems faced in the society.
目的:地理学科的教学目的是使学习者掌握基本的基础技能,从而推动他们对社会做出有价值的贡献。摘要本研究旨在探讨公立学校教师态度对学生地理成绩的影响。批判性文献回顾方法:本文采用案头研究回顾方法,对相关的实证文献进行回顾,以确定主题并提取知识空白。研究结果:研究结果表明,学习者选择地理学科是因为他们热爱和理解地理学科。学习者在选择地理时考虑的是他们将来打算从事的职业。地理的多样性和范围也是吸引学习者选择地理的一个原因,朋友在职业理想选择中影响不大。教师对学习者对地理的选择有影响。对理论、政策和实践的独特贡献:地理学科与理解当今社会面临的主要问题有关。这一主题也有助于更好地了解环境。地理应该成为所有中学生的必修课,因为它在实现清洁环境和可持续发展方面的重要性不容低估。教师应该把社会面临的问题与所教授的内容联系起来,这样学习者就可以对他们在课堂上学到的东西有一个真实的生活体验。这将提高这门学科在理解社会面临的各种问题方面的重要性。
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引用次数: 0
Waves in the Costal and Oceanic Regions. 沿海和大洋地区的波浪。
Pub Date : 2022-06-07 DOI: 10.47941/jags.888
Kariuki R Waithaka
Purpose: The aim of the paper is to assess the waves techniques in the costal and oceanic regions. Methodology: One obvious way of measuring waves is to follow the three-dimensional motion of the water particles at the sea surface. This can be done with a buoy that closely follows the motion of these water particles by floating at the surface. Findings: Ocean waves are generally not observed and modelled in all their detail as they propagate across the ocean, into shelf seas and finally into coastal waters. Such details are generally not required and they are certainly beyond our capacity to observe and compute (except on a very small scale). The alternative is to consider the statistical characteristics of the waves. In advanced techniques of observing and modelling, these statistical characteristics are represented by the wave spectrum, which can be determined either from observations or with computer simulations based on wind, tides and seabed topography.
目的:对沿海和海洋地区的波浪技术进行评价。方法:测量波浪的一个明显方法是跟踪海面上水粒子的三维运动。这可以通过一个浮标来实现,浮标漂浮在水面上,密切跟踪这些水粒子的运动。研究发现:当海浪在海洋中传播,进入陆架海,最后进入沿海水域时,通常没有对它们的所有细节进行观察和建模。这些细节通常是不需要的,它们当然超出了我们观察和计算的能力(除非在非常小的范围内)。另一种选择是考虑波浪的统计特性。在先进的观测和建模技术中,这些统计特征由波浪谱表示,波浪谱可以通过观测或基于风、潮汐和海底地形的计算机模拟来确定。
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引用次数: 0
GEOTECHNICAL PROPERTIES AND AGGREGATE QUALITY ASSESSMENT OF MARL DEPOSIT IN AFIKPO AREA, SOUTHEASTERN NIGERIA 尼日利亚东南部afikpo地区泥灰岩矿床的岩土特性和总体质量评价
Pub Date : 2021-06-22 DOI: 10.47941/jags.592
E. U. Sunday, B. J. Owonaro, O. C. Okeke, C. Amadi, S. Okonkwo, J. I. Ofoh, P. O. Iwuoha
Purpose: Marl is an impure limestone that is generally not good for cement production because of its low calcium carbonate content. Aggregates derived from marl deposit in Afikpo Area, Southeastern Nigeria, are currently being used in construction of concrete structures and highway pavements by construction companies and individuals. There is no published information on the suitability of the aggregates for such uses. The purpose of this study was to determine the suitability of the aggregates as components of concrete and highway pavements in terms of satisfying the non-swelling and acceptable strength characteristics / requirements. Methodology: Geotechnical tests including Atterberg limits (liquid limit, plastic limits and plasticity index), linear shrinkage and free swell were used to evaluate the swelling characteristics; while physico- mechanical tests including specific gravity, water absorption. Aggregate Crushing Values (ACV), Aggregate Impact Value (AIV) and Los Angele Abrasion Value (LAAV) were used to evaluate the strength characteristics. The field studies indicate that the marl deposit is associated with Ezeaku Formation of Lower Benue Trough. Results: Results of geotechnical tests indicate liquid limit, plasticity index, linear shrinkage and free swell values of 29.50%, 4.60%, 0.36% and 10.00%, respectively. Similarly, results of physico-mechanical tests indicate specific gravity, water absorption, ACV, AIV and LAAV values of 2.58%, 1.90%. 23.50% 29.45% and 42.70%, respectively. Unique  contribution  to  theory,  practice  and  policy: Since the results satisfy the non-swelling characteristics (plasticity index < 12%, linear shrinkage < 8% and free swell < 50%) and acceptable strength characteristics (water absorption < 3%, ACV < 30%, AIV < 30% and LAAV < 45%) requirements for good concrete and highway pavement aggregates, aggregates derived from marl deposit in Afikpo Area, Southeastern Nigeria, are strongly recommended to be used as aggregates in concrete and highway pavement construction.
用途:灰泥是一种不纯的石灰石,由于碳酸钙含量低,通常不适用于水泥生产。目前,建筑公司和个人正在使用尼日利亚东南部Afikpo地区泥灰岩沉积物的骨料建造混凝土结构和公路路面。没有关于这种用途的聚合体的适宜性的公开资料。本研究的目的是确定骨料作为混凝土和公路路面组成部分的适用性,以满足不膨胀和可接受的强度特性/要求。方法:采用阿特伯格极限(液限、塑性极限和塑性指数)、线性收缩和自由膨胀等岩土试验评价膨胀特性;而物理力学试验包括比重、吸水率等。采用骨料破碎值(ACV)、骨料冲击值(AIV)和洛杉矶磨损值(LAAV)对强度特性进行评价。野外研究表明,泥灰岩沉积与下贝努埃海槽埃泽阿库组有关。结果:岩土力学试验结果表明,液限值为29.50%,塑性指数为4.60%,线收缩率为0.36%,自由膨胀率为10.00%。同样,物理力学试验结果表明,比重、吸水率、ACV、AIV和LAAV值分别为2.58%、1.90%。分别为23.50%、29.45%和42.70%。对理论、实践和政策的独特贡献:由于结果满足良好混凝土和公路路面集料的非膨胀特性(塑性指数< 12%,线收缩率< 8%,自由膨胀< 50%)和可接受的强度特性(吸水率< 3%,ACV < 30%, AIV < 30%, LAAV < 45%)要求,因此强烈建议使用尼日利亚东南部Afikpo地区泥灰岩沉积物的集料作为混凝土和公路路面施工中的集料。
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Journal of Applied Geographical Studies
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