Integrating land development size, pattern, and density to identify urban–rural fringe in a metropolitan region

2020 ◽  
Vol 35 (9) ◽  
pp. 2045-2059
Author(s):  
Jian Peng ◽  
Qinghua Liu ◽  
Thomas Blaschke ◽  
Zimo Zhang ◽  
Yanxu Liu ◽  
...  
2019 ◽  
Vol 11 (18) ◽  
pp. 5000 ◽  
Author(s):  
Yiliang Wan ◽  
Chuxiong Deng ◽  
Tao Wu ◽  
Rui Jin ◽  
Pengfei Chen ◽  
...  

Understanding the integration process of urban agglomeration is essential for sustainable regional development and urban planning. However, few studies have analyzed the spatial integration patterns of metropolitan regions according to the impacts of landscape ecology along rail transit corridors. This study performed a comprehensive inter-city gradient analysis using landscape metrics and radar charts in order to determine the integration characteristics of an urban agglomeration. Specifically, we analyzed the evolution of spatial heterogeneity and functional landscapes along gradient transects in the Changsha–Zhuzhou–Xiangtan (CZT) metropolitan region during the period of 1995–2015. Four landscape functional zones (urban center, urban area, urban–rural fringe, and green core) were identified based on a cluster analysis of landscape composition, connectivity, and fragmentation. The landscape metric NP/LPI (number of patches/largest patch index) was proposed to identify the urban–rural fringe, which revealed that the CZT region exhibited a more aggregated form, characterized by a single-core, continuous development, and the compression of green space. The integration of cities has resulted in continued compression and fragmentation of ecological space. Therefore, strategies for controlling urban expansion should be adopted for sustainable urban development. The proposed method can be used to quantify the integration characteristics of urban agglomerations, providing scientific support for urban landscape planning.


2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Jaime Díaz-Pacheco ◽  
Juan Carlos García-Palomares

The middle of 2007 saw the beginning of a worldwide financial crisis that led to a sharp reduction in investment based on construction and urban development. This new situation is generating a new process, characterised by a slowdown that has almost reached a standstill when compared with the frenzied development of previous decades. In order to analyse these processes, this study examines urban land use changes and the urban growth rate and spatial dynamics of the metropolitan region of Madrid. The analysis has been carried out on a large scale between two periods (2000–2006 and 2006–2009) using a regional land use geodatabase. The results show the changes in the urban land use dynamics that took place over these two periods that could characterise the cities of Mediterranean Europe, where contrarily to the general pattern in Europe built-up areas are combining scattered built-up areas with new aggregated compact developments.


Geoderma ◽  
2022 ◽  
Vol 406 ◽  
pp. 115524
Author(s):  
Enzai Du ◽  
Nan Xia ◽  
Yang Tang ◽  
Zhaodi Guo ◽  
Yuying Guo ◽  
...  

Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 177
Author(s):  
Saskia Wolff ◽  
Makarius V. Mdemu ◽  
Tobia Lakes

Highly dynamic peri-urban areas, particularly in the Global South, face many challenges including a lack of infrastructure, ownership conflicts, land degradation, and sustainable food production. This study aims to assess spatial land use characteristics and processes in peri-urban areas using the case of Dar es Salaam, Tanzania. A mixed-method approach was applied, consisting of expert interviews and spatial data analysis, on a local scale along an urban–rural gradient. Expert interviews were conducted during a field study and analyzed regarding the characteristics and processes of peri-urban land development. A GIS-based analysis of land use patterns was applied using satellite imagery and Open Street Map data to identify a number of variables, such as building density and proximity to environmental features. Results show specific patterns of land use indicators, which can be decreasing (e.g., house density), increasing (e.g., tree coverage), static (e.g., house size), or randomly distributed (e.g., distance to river), along a peri-urban gradient. Key findings identify lack of service structures and access to public transport as major challenges for the population of peri-urban areas. The combination of qualitative expert interviews and metrics-based quantitative spatial pattern analysis contributes to improved understanding of the patterns and processes in peri-urban land use changes.


2019 ◽  
Vol 87 ◽  
pp. 104066 ◽  
Author(s):  
Siliang Wang ◽  
Shukui Tan ◽  
Shengfu Yang ◽  
Qiaowen Lin ◽  
Lu Zhang

2019 ◽  
Vol 34 (2) ◽  
pp. 168-186 ◽  
Author(s):  
Ray Yep

The relocation of peasants to high-rise buildings is the latest strategy deployed to feed the insatiable hunger for land in China. To free up more land for construction, Chinese peasants are encouraged to abandon their traditional homes and move into newly built high-rise modern apartments. A central feature of this distinctive form of rural urbanization is the transferability of land development rights across the rural–urban divide. Like most policy initiatives in Chinese economic reforms, variations and improvisation in implementation are found across local administrations. Such local disparities carry major implications for rural governance. This article compares and evaluates the experience of local governments in Chongqing and Nantong. Local governments in these two localities face both opportunities and constraints in integrated urban–rural development, a situation which has contributed to contrasting relocation patterns, and consequently variations in intergovernmental relationships at local levels. Enjoying the privilege of experimenting with the ‘land bill’ (地票) system, local governments in Chongqing have more leeway to stake their claims and are thus in a better position to maintain their authority. In the Nantong case, however, the more hands-on approach of the prefecture deprives lower administrative levels of flexibility to pursue their interests. This contrast in the policy process leads to different patterns of collaboration between levels of government at the grass roots in the two localities, which may also have a long-term impact on the exercise of authority at the community level.


Author(s):  
Rong Guo ◽  
◽  
Yujing Bai ◽  
Je Gao ◽  
◽  
...  

It is an important basis for optimizing land spatial patterns and guiding land spatial planning to clarify the ecological conditions of land space, arrange reasonably agricultural production and urban-rural construction space. The network formed by green infrastructures has important ecological significance in maintaining the migration of biological species and ensuring the continuity of the ecological process. Based on the concept of ecological priority and green development, this paper constructs a framework of the land space development suitability evaluation based on green infrastructure evaluation. From the perspective of ecosystem service value and ecological sensitivity, the evaluation factors are selected to make a comprehensive evaluation of green infrastructure. The evaluation results are the basis for the evaluation of the importance of ecological protection, the suitability of agricultural production, and the suitability of construction. At last, taking Harbin as an example, the evaluation framework is applied to preliminarily determine the red line of ecological protection and the scope of ecological space, agricultural space, and urban-rural construction space in 2015. It is expected to provide a reference basis for the compilation of land and space planning in Harbin.


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