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Vulnerability Assessment of Cyclonic Hazards in Coastal Region of Bangladesh
Md. Sohel Rana,
Md. Abu Saeed Al Azad,
Md. Jahidul Islam
Issue:
Volume 3, Issue 2, June 2018
Pages:
34-43
Received:
13 March 2018
Accepted:
28 March 2018
Published:
26 April 2018
Abstract: The aim of this study is to identify the hazards that are associated with cyclone and to prepare hazard maps with various intensity (low, medium and high) through questionnaire survey and Participatory Rural Appraisal (PRA) method in Paikgacha Upazilla of Khulna District is a major cyclone prone area of Bangladesh. The collected data reveals that salinity, water logging, embankment erosion, tidal surge and storm surge are the major cyclonic hazards and have adverse effects on agriculture, structure, occupational pattern, consumption pattern and service facilities of that area. As a result, vulnerability assessment has done to identify the most vulnerable sector by the impacts of multi-hazard using Weighted Index method. The analysis of the data shows that structural sector (24%) is more vulnerable compared to other sectors. Because, the housing condition is not much better condition in terms of construction material and technology. During cyclone period heavy wind speed and storm sure damage and destroy the housing roof and wall. On the other side, occupational pattern (23%) reflects as second rank vulnerable sector in the study area. This research helps to mitigate risks by hazard mapping and plays an important role in recovery strategies against multi-hazards risks of cyclone.
Abstract: The aim of this study is to identify the hazards that are associated with cyclone and to prepare hazard maps with various intensity (low, medium and high) through questionnaire survey and Participatory Rural Appraisal (PRA) method in Paikgacha Upazilla of Khulna District is a major cyclone prone area of Bangladesh. The collected data reveals that s...
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Urban Resilience in Addis Ketama and Lideta Sub Cities of Addis Ababa: The Case Tekilehaimanot Area Addis Ababa, Ethiopia
Issue:
Volume 3, Issue 2, June 2018
Pages:
44-54
Received:
24 May 2018
Accepted:
9 July 2018
Published:
15 August 2018
Abstract: The city of Addis Ababa is experiencing wide range of changes in terms of physical, socio-economic, and environmental aspects. Its administration has implementing various programs to re-structure and to create resilient city. However, empirical researchers argue that despite remarkable achievements in restructuring of the city to make it more livable, there are several and complex urban downsides and bottlenecks. With this regards, this study is conducted to identify the resilience of sampled residents in Teklehayimanot areas of Addis Ababa city using cognitive mapping strategy. The study is carried out taking a case study of specific area of Teklhayimant District in which three specific sites are randomly selected from the district. From these three different sites, three informants are randomly selected from each specific site. The research has pursued a qualitative research approach substantiated by descriptive research design to analyze and interprets data. To gather pertinent data from respondents, the research has employed in-depth interview, observation and document analysis tools. Besides, secondary data are generated from literature through review of documents. The findings of the study indicate that respondents had almost similar understandings of their surroundings in terms of the socio-economic values. It is discovered that respondents observe the social, economic, and physical changes in their respective area closely and that the restructuring processes are perceived as it bears impacts on their physical, socio-economic lives. Two of the respondents argued that the re-construction and re-establishment efforts that the city administration conducts in the area are significantly harming the social, economic, and physical conditions of the residents while the other respondent stated that the change are important as far as they are planned and reserve the social and economic bonds of the society. In general, the cognitive mapping portrayed by respondents from three different localities of the study area indicates that respondents are highly affiliated to the living condition they are leading. It indicates that the city administration efforts of re-structuring of the area must integrate all scope of resilience, as the residents are exceedingly worried about their firmed economic and social existence. In addition, it is suggested that the range of instruments including effective communication, participatory approach, and integrative urban development framework will help the city administration to its concerns to make the city more resilience. This will also bring opportunities to manage the change in well-organized manner.
Abstract: The city of Addis Ababa is experiencing wide range of changes in terms of physical, socio-economic, and environmental aspects. Its administration has implementing various programs to re-structure and to create resilient city. However, empirical researchers argue that despite remarkable achievements in restructuring of the city to make it more livab...
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Planning Green Space for Climate Change Adaptation and Mitigation: A Review of Green Space in the Central City of Beijing
Feng Li,
Paul Sutton,
Hamideh Nouri
Issue:
Volume 3, Issue 2, June 2018
Pages:
55-63
Received:
16 September 2018
Published:
18 September 2018
Abstract: The ongoing rapid urbanization and its socio-economic impacts on Chinese cities have engendered numerous environmental issues, food insecurity and significant stress on water resources besides accelerating some ecological degradation. Among these issues, urban-heat-island (UHI) and climate change in large cities had drawn much attention so that many researches on climate change adaptation and mitigation emerged in recent years. How to make the cities cool down and more liveable is more important than before for urban planning. Urban planners have been placing more stress on green space planning and the green environment of cities where dwellers crowd together. This paper is a review of green space in the Central City of Beijing under current situation and puts forward some advice on green space planning in responding to the climate change in the new era of China. Planning green space with the principal objective of “green-sponge-city” and the key concept of “low-carbon-city” is the primary adaptation and mitigation approach to climate change for urban planners and policymakers. No doubt, more attention and support from the government regarding strengthening green space systems in response to climate change will improve the liveability, resilience, and sustainability of cities in China.
Abstract: The ongoing rapid urbanization and its socio-economic impacts on Chinese cities have engendered numerous environmental issues, food insecurity and significant stress on water resources besides accelerating some ecological degradation. Among these issues, urban-heat-island (UHI) and climate change in large cities had drawn much attention so that man...
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The Comparison and Experiential Learning in the Metropolitan Delta
Yan Wang,
Wei Wu,
Luuk Boelens
Issue:
Volume 3, Issue 2, June 2018
Pages:
64-72
Received:
16 September 2018
Published:
18 September 2018
Abstract: Throughout the history of the world, the development of cities is inseparable from the large water system and the ocean. The world-class urban agglomerations are concentrated on the delta metropolitans that water-affluent areas. Since ancient times, the whole world has commonness in delta`s development. Since the 1980s, the massive urbanization processes featuring the typical Time-Space compression, enhance complicated conflicts in China`s daily life. The enormous floods of the global climate change, soil erosion, environmental pollution, water resources waste, and the loss of hydrology landscape also affect the urban development. As a result the Chinese government has induced the “New urbanization”, “Sponge City- project” and so forth, "Scientific urbanization" and sustainable ecological urban planning gain wide attention. This paper will focus on the urban development of the Delta metropolitans. The methods of literature research, re-mapping, case sudy, comparative study, multi-perspective study will be applied in this paper. It will take the Yangtze River Delta and Euro Delta as examples, compare the similarities and differences of these two deltas in perspective of urban morphology and delta governance. The aspects of urban morphology contains city site selection, urban form and urban elements, the cores evolution and historical superposition of urban agglomeration. Actor, factor, institution, as the city gene leave their traces on the urban fabric. The paper also learns the experiences of water management and city-group development from both deltas. The Yangtze River Delta could learn from the Euro Delta in terms of the urban revitalization and the reconstruction of waterfront areas. In conclusion, it will give suggestions for future`s urban resilience development.
Abstract: Throughout the history of the world, the development of cities is inseparable from the large water system and the ocean. The world-class urban agglomerations are concentrated on the delta metropolitans that water-affluent areas. Since ancient times, the whole world has commonness in delta`s development. Since the 1980s, the massive urbanization pro...
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Spatial Characteristics and Migration Mechanism of Population Suburbanization in Chinese Big City
Issue:
Volume 3, Issue 2, June 2018
Pages:
73-79
Received:
16 September 2018
Published:
18 September 2018
Abstract: Urban spatial expansion and population suburbanization are very common after urban growth to a certain stage, and also an important research topic of human geographer. Chinese cities have experienced unprecedented growth since the lunch of reforms in the late 1990s. Studies have found that the leading cities in China such as Beijing and Shanghai are undergoing the process of suburbanization, while the country as a whole is still at the stage of urbanization. However, it is difficult to judge whether suburbanization has happened by the traditional method. In this paper, the graphic analysis method is introduced to analyze the spatial distribution of population in big cities, and the migration analysis method is introduced to analyze the source of new population. The results show that: with the rapid urbanization and population growth, the urban population distribution area in Chinese big cities is expanding very much; Inner suburbs are the fastest population growth areas, expanding continuously as circles, and the newly increased people mainly are migrants from the central city and intraprovincial urban people; Outer suburbs reflect unbalanced population growth as a leap-frogging, with faster rates at locations of county/district governments and prioritized development districts, and the newly increased people mainly are interprovincial rural people. It is the general spatial model of population growth in the suburbs of big cities in China, which is obviously different from those in western countries.
Abstract: Urban spatial expansion and population suburbanization are very common after urban growth to a certain stage, and also an important research topic of human geographer. Chinese cities have experienced unprecedented growth since the lunch of reforms in the late 1990s. Studies have found that the leading cities in China such as Beijing and Shanghai ar...
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