scholarly journals Spatiotemporal Dynamics of Green Infrastructure in an Agricultural Peri-Urban Area: A Case Study of Baisha District in Zhengzhou, China

Land ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 801
Author(s):  
Hua Xia ◽  
Shidong Ge ◽  
Xinyu Zhang ◽  
Gunwoo Kim ◽  
Yakai Lei ◽  
...  
Keyword(s):  
Food Security ◽  
Green Infrastructure ◽  
Urban Areas ◽  
Dynamic Assessment ◽  
Ecological Security ◽  
Residential Areas ◽  
Ecological Processes ◽  
The Sustainable Development ◽  
Security Research

Quantifying the dynamics of green infrastructure (GI) in agricultural peri-urban areas is of great significance to the regional ecological security, food security, and the sustainable development of urban integration. Based on remote sensing images, this study aims to provide a spatiotemporal dynamic assessment of the GI in Baisha District from 2007 to 2018 to improve the layout of GI and planning policies from the perspective of ecological security and food security. Research methods include landscape pattern indices, spatial autocorrelations, and grid analyses in this case study. The results suggest that ensuring the dominant position of farmland is critical to maintaining the composition and connectivity of the overall GI. The recreation, inheritance of farming culture, and ecosystem service functions of farmland should be improved to meet the growing needs of urban residents. GI includes the farmland, greenspace, and wetland on both sides of the Jialu River that should be retained and restored as much as possible to protect natural ecological processes. Simultaneously, construction of important urban facilities and residential areas in flooded areas should be banned. A part of the evenly distributed large greenspace patches should be moved to both sides of the Jialu River to increase the agglomeration effect of GI. Optimization measures in this case study also offer a perspective for other agricultural peri-urban areas that have experienced similar urbanization.

scholarly journals People’s Avoidance of Neighboring Agricultural Urban Green Infrastructure: Evidence from a Choice Experiment

2021 ◽  
Vol 13 (12) ◽  
pp. 6930
Author(s):  
Shinsuke Kyoi
Keyword(s):  
Spatial Econometrics ◽  
Green Infrastructure ◽  
Urban Areas ◽  
Choice Experiment ◽  
Online Survey ◽  
Agricultural Land ◽  
Residential Areas ◽  
Urban Green ◽  
Ishikawa Prefecture ◽  
Urban Green Infrastructure

This study evaluates people’s preferences regarding the proximity of their residence to agricultural urban green infrastructure (UGI), such as agricultural land and satoyama, and discusses the availability of these types of land as UGI. UGI is vital for reducing the negative environmental impacts of urban areas, as these impacts are too large to ignore. In this study, we conducted an online survey and a choice experiment to investigate people’s perceptions regarding the proximity of their residence to agricultural UGI (AUGI). The respondents of the choice experiment were 802 inhabitants of Ishikawa Prefecture, Japan, which has rich agricultural resources. To examine explicitly the spatial autocorrelation of people’s preferences, in this study, we used the spatial econometrics method. The main empirical findings are that people prefer agricultural land far away from their residence—more than 1000 m, not within 1000 m—which reflects the not-in-my-backyard phenomenon. Meanwhile, people’s preferences regarding proximity to satoyama are complicated and their preferences are positively spatially autocorrelated. The results indicate that policymakers and urban planners should manage and provide AUGI far away from residential areas; otherwise, they must address people’s avoidance of neighboring AUGI.

scholarly journals ACHIEVING SUSTAINABLE URBANIZATION OF THE NATIONAL THEATRE IN LONDON THROUGH CHANGE OF USE AND FUNCTIONS OF ARCHITECTURE

2021 ◽  
Vol 12 (23) ◽  
pp. 11-21
Author(s):  
Danijela Rogina ◽  
◽  
Radivoje Dinulović ◽  
Keyword(s):  
Urban Space ◽  
Green Infrastructure ◽  
Urban Areas ◽  
Public Spaces ◽  
Urban Spaces ◽  
Urban Forms ◽  
National Theatre ◽  
Sustainable Urbanization ◽  
Key Aspects

The human population is currently on the rise and most Europeans live in urban areas, leading to increased urbanization. The change comes with its challenges, as cities, architecture, and urban spaces need to become more fluid, multi-functional, and innovative. This paper examines whether a change of use of public spaces, and functions of architectural and urban forms, can be used as an element in the implementation of sustainable urbanization. The theoretical framework of this paper focuses on literature findings relating to identified key aspects such as innovative approaches in changes of use — recycling and upcycling, green infrastructure and financial aspects, concepts of “right of the place”, and public participation. These aspects are addressed on both theoretical and practical levels, with the National Theatre in London as a case study. Findings convey that the change of use of spaces can be utilized to achieve sustainable urbanization, together with the management of functions and uses of architectural and urban forms. However, further research is needed with various stakeholders to identify a solid and inherent database, as a foundation on which the most optimal urban spaces would emerge, by identifying new functions and uses of urban space and architecture.

scholarly journals The dynamics of population distributions in cities based on daily mobile phone operations: A case study of some Moravian cities

2021 ◽  
Vol 29 (1) ◽  
pp. 71-86
Author(s):  
Gabriel Kopáčik ◽  
Antonín Vaishar ◽  
Eva Šimara
Keyword(s):  
Mobile Phone ◽  
Urban Areas ◽  
Urban Structure ◽  
Residential Areas ◽  
Urban Structures ◽  
Population Distributions ◽  
Dynamics Of Population ◽  
The City ◽  
Permanent Residents

Abstract Analyses of the changes in the presence of persons in different central and residential parts of urban areas are subject to evaluation in this paper. Case studies of the cities of Brno, Ostrava and Zlín during the day and night are highlighted. Data from a provider of mobile phone services were used for the analyses. It appears that the data can be important for the comparison of different urban structures. The results demonstrate that the organisation of urban structure affects the number of visitors and thus the area attractiveness. It was confirmed that the number of mobile phone users in the city cores is higher than the number of permanent residents. The greatest differences between the day and night in the city cores were found in Brno, a concentric city with the most important central functions among the cities studied. Differences between the day and night in residential areas were not as large as expected. City neighbourhoods in Brno showed some specific rhythmicity.

The role of blue and green infrastructure in thermal sensation in public urban areas: A case study of summer days in four Czech cities

2021 ◽  
Vol 66 ◽  
pp. 102683
Author(s):  
Michal Lehnert ◽  
Marek Brabec ◽  
Martin Jurek ◽  
Vladimír Tokar ◽  
Jan Geletič
Keyword(s):  
Green Infrastructure ◽  
Urban Areas ◽  
Thermal Sensation

scholarly journals An Analysis of Relationship between the Environment and User’s Behavior on Unimproved Streets: A Case Study of Da Nang City, Vietnam

2018 ◽  
Vol 11 (1) ◽  
pp. 83 ◽  
Author(s):  
Duy Do ◽  
Suguru Mori ◽  
Rie Nomura
Keyword(s):  
Public Space ◽  
Human Activities ◽  
Urban Areas ◽  
Open Space ◽  
The Sustainable Development ◽  
Behavior Setting ◽  
Street Space ◽  
Type C ◽  
The Relationship

One of the most insoluble problems confronted by urban areas in developing countries is the shortage of open space; street space allows daily human activities, promotes social interaction, and is seen as a precondition for the sustainable development of the community. Although some seemingly public space is also built up in Vietnam, street space is often where resident’s go to perform activities. This research aims at studying behaviors of users in old street space and the interaction with existing physical settings; as an input to future renovation and the development of street space in a manner that respects the cultural and social context of the Vietnamese people. User’s behaviors in streets and physical characteristics of space were collected and processed in accordance with theories of behavior setting and proxemics using some methods including place-centered behavioral mapping (PcBM) and visual encounter surveys (VES). The analysis showed that three types of behavior, including (1) Type A where various frequent activities occurred, (2) Type B which discouraged most human activities, and (3) Type C where neither frequent nor infrequent behaviors can represent environmental behavior patterns in the old street spaces of Vietnam and for each of these types of patterns improvements have been proposed by organizing street and pavements layouts detailed in this paper. The proposed improvements are based on the relationship between human behaviors and properties of the street space to assist designers, administers, and authorities in renovating and developing better and more sustainable street space.

scholarly journals Is there an equality in the spatial distribution of urban vitality: A case study of Wuhan in China

2021 ◽  
Vol 13 (1) ◽  
pp. 469-481
Author(s):  
Guoliang Ou ◽  
Min Zhou ◽  
Zhongping Zeng ◽  
Qingsong He ◽  
Chaohui Yin
Keyword(s):  
Spatial Distribution ◽  
Gini Coefficient ◽  
Urban Areas ◽  
Housing Prices ◽  
High Grade ◽  
Residential Areas ◽  
Multiple Sources ◽  
The Gini Coefficient ◽  
Residential District

Abstract Urban vitality is a spatial phenomenon and a public service. Previous studies often did not measure the fairness of the accessibility of urban vitality. This research analyzed the spatial distribution of urban vitality in Wuhan as a case study area using big data from multiple sources. The study used the two-step floating catchment area method (2SFCA) to measure the accessibility level of each residential district to the vibrant zones (VZs). Furthermore, the inequality in the level of accessibility of residential areas with different housing prices was assessed on the basis of the Gini coefficient. The main conclusions are as follows: (1) the Gini coefficient of reaching the accessibility level of high-grade VZs is 0.426, and the corresponding sub-high-grade Gini coefficient is 0.274. This shows that the inequality in accessibility of different residential areas is more obvious as the level of vitality is higher and (2) residential areas with high housing prices have greater accessibility than those areas with low housing prices. It was also noticed that the level of accessibility and fairness in vitality is generally higher in central urban areas than in suburban areas. The Gini coefficient of high-grade vitality is generally higher than that of sub-high-grade. The results of this study provide a reference for researching the accessibility level of urban vitality, which considers the needs of population, and can also provide guidelines in urban planning regarding the allocation of services and resources.

scholarly journals Space Redevelopment of Old Landfill Located in the Zone between Urban and Protected Areas: Case Study

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 146
Author(s):  
Eugeniusz Koda ◽  
Kinga Rybak-Niedziółka ◽  
Jan Winkler ◽  
Martin Černý ◽  
Piotr Osiński ◽  
...  
Keyword(s):  
Protected Areas ◽  
Urban Areas ◽  
Large City ◽  
Heat Pumps ◽  
New Techniques ◽  
The Sustainable Development ◽  
Degraded Area ◽  
Spatial Quality ◽  
Surrounding Landscape

Landfills are elements of the waste management system, without possibility of further reclaiming, according to the requirements of a closed-loop economy, but with the possibility of transforming the area into other functions. The research combined monitoring of plant species, suggesting the composition of vegetation cover for pro-ecological management, analysis of functional and infrastructural incorporation of the landfill in the surrounding landscape, and proposals for reclamation and social application. An assessment of geotechnical safety was also made. Modernization of the landfill suggests that the pressure placed on other untouched locations should decrease. The designed space allows reintroducing socio-ecological life into this degraded area. Taking advantage of the character of the area, including variable development and significant landscape potential on the outskirts of a large city in the vicinity of protected areas, there is the possibility of creating new spatial quality following the standards of modern architecture-urban planning. One of the innovative elements of the project is the implementation of energy from renewable sources, including landfill biogas, photovoltaic panels and heat pumps. The development design includes social expectations and adaptation of new techniques to functioning in times of increased sanitary threats. The proposed design direction may be considered as a recommended trend for the sustainable development of urban areas.

scholarly journals CHALLENGES OF SUSTAINABLE DEVELOPMENT OF THE HOUSEHOLD LIVELIHOODS IN VIETNAM: A CASE STUDY IN THAI BINH CITY

2021 ◽  
Vol 9 (11) ◽  
pp. 899-906
Author(s):  
Pham Thi Minh Tam ◽  
◽  
Dao Thuy Hang ◽  
Keyword(s):  
Sustainable Development ◽  
Urban Areas ◽  
Coastal Region ◽  
Economic Capital ◽  
Consumer Market ◽  
The Sustainable Development ◽  
Depth Interview ◽  
Household Livelihoods ◽  
Depth Interviews

The study of household livelihoods has been a familiar research topic, especially in developing countries. This research used the following methods namely document analysis, in-depth interviews, and questionnaires to point out the challenge for the sustainable development of household livelihoods in peri-urban areas. The sample of questionnaire survey and in-depth interview was 298 and 30 representatives of agricultural households, correspondingly. This research was conducted in Thai Binh city that is located in the northern coastal region of Vietnam. The results showed that there are 2 major challenges for the sustainable development of household livelihoods: the natural resources and human capital challenges. In addition, there were other challenges such as consumer market, livelihood transformation strategy, and economic capital challenges. Last but not least, some suggestions were proposed to solve those challenges mentioned.

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