scholarly journals A Fractal Approach to Urban Boundary Delineation Based on Raster Land Use Maps: A Case of Shanghai, China

Land ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 941
Author(s):  
Chong Zhao ◽  
Yu Li ◽  
Min Weng
Keyword(s):  
Land Use ◽  
Urban Sprawl ◽  
Rural Areas ◽  
Local Governments ◽  
Agglomerative Clustering ◽  
Dynamic Changes ◽  
Fractal Approach ◽  
Morphological Criteria ◽  
Optimum Threshold ◽  
Land Use Maps

Given the diverse socioecological consequences of rapid urban sprawl worldwide, the delineation and monitoring of urban boundaries have been widely used by local governments as a planning instrument for promoting sustainable development. This study demonstrates a fractal method to delineate urban boundaries based on raster land use maps. The basic logic is that the number of built-up land clusters and their size at each dilation step follows a power-law function. It is assumed that two spatial subsets with distinct fractal characteristics would be obtained when the deviation between the dilation curve and a straight line reaches the top point. The top point is regarded to be the optimum threshold for classifying the built-up land patches, because the fractality of built-up land would no longer exist beyond the threshold. After that, all the built-up land patches are buffered with the optimum threshold and the rank-size distribution of new clusters can be re-plotted. Instead of artificial judgement, hierarchical agglomerative clustering is utilized to automatically classify the urban and rural clusters. The approach was applied to the case of Shanghai, the most rapidly urbanizing megacity in China, and the dynamic changes of the urban boundaries from 1994 to 2016 were analyzed. On this basis, urban–rural differences were further explored through several fractal or nonfractal indices. The results show that the proposed fractal approach can accurately distinguish the urban boundary without subjective choice of thresholds. Extraordinarily different fractal dimensions, aggregation and density and similar average compactness were further identified between built-up land in urban and rural areas. The dynamic changes in the urban boundary indicated rapid urban sprawl within Shanghai during the study period. In view of the popularization and global availability of raster land use maps, this paper adds fuels to the cutting-edge topic of distinguishing the morphological criteria to universally describe urban boundaries.

scholarly journals METHODS EMPLOYED IN RESEARCH ON THE SPATIAL STRUCTURE OF AGRICULTURE

2013 ◽  
Vol 32 (4) ◽  
pp. 33-38
Author(s):  
Anna Kołodziejczak
Keyword(s):  
Land Use ◽  
Spatial Structure ◽  
Statistical Methods ◽  
Natural Environment ◽  
Rural Areas ◽  
Econometric Models ◽  
Spatial Econometric ◽  
Spatial Econometric Models ◽  
Agricultural Geography ◽  
Land Use Maps

Abstract The research conducted in the field of agricultural geography concerns both, the conditions and factors controlling the spatial structure of rural areas. It includes several lines of study, like an assessment of the natural environment for agricultural purposes, designing land-use maps, examining agricultural suburban zones, model approaches to agriculture, the spatial structure of agriculture, methods of the typology and regionalisation of agriculture, or multi- functionality of agriculture. They make use of a great variety of methods. This article presents methods employed in research on the spatial structure of agriculture. It defines the notion of a spatial structure, the consequences that follow from it, and methodological assumptions. The methods discussed embrace statistical methods of studying the spatial structure of agriculture, those used to determine elements predominating in this structure and to describe its heterogeneity, as well as mathematical and spatial-econometric models.

THE APPLICATION OF PHOTO-INTERPRETATION TO URBAN PLANNING

1964 ◽  
Vol 18 (1) ◽  
pp. 34-42
Author(s):  
Roger F. Tomlinson ◽  
W. George E. Brown
Keyword(s):  
Land Use ◽  
Real Estate ◽  
Traffic Flow ◽  
Rural Areas ◽  
Field Work ◽  
Urban Land Use ◽  
Practical Application ◽  
Photo Interpretation ◽  
Effective Analysis ◽  
Land Use Maps

While making no pretense at being a complete exposition of its theme, this paper shows that the use of photo interpretation in the preparation of urban land-use maps eliminates much laborious and time-consuming field work and assists in the organization of the field work that remains. In the preparation of special-purpose maps such as real-estate-assessment, employment, traffic-shed, traffic-flow, and parking-area maps, it adds to the effective analysis of data presented and sometimes adds new data for consideration. As an example of practical application, the paper shows how a combination of such special-purpose maps may be used in the location of a new supermarket. For planning in rural areas immediately adjacent to a city a somewhat different series of special-purpose maps is necessary, but photo interpretation can play the same important role in providing data for the maps and assisting in the analyses.

scholarly journals Assessment of Land Cover Changes in the Hinterland of Barranquilla (Colombia) Using Landsat Imagery and Logistic Regression

Land ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 152 ◽  
Author(s):  
Henry Schubert ◽  
Andrés Caballero Calvo ◽  
Markus Rauchecker ◽  
Oscar Rojas-Zamora ◽  
Grischa Brokamp ◽  
...  
Keyword(s):  
Land Use ◽  
Logistic Regression ◽  
Land Cover ◽  
Rural Areas ◽  
Vegetation Cover ◽  
Landsat Imagery ◽  
Impact Factors ◽  
Land Cover Changes ◽  
Dynamic Changes ◽  
The Impact

Barranquilla is known as a dynamically growing city in the Colombian Caribbean. Urbanisation induces land use and land cover (LULC) changes in the city and its hinterland affecting the region’s climate and biodiversity. This paper aims to identify the trends of land use and land cover changes in the hinterland of Barranquilla corresponding to 13 municipalities in the north of the Department Atlántico. Landsat TM/ETM/OLI imagery from 1985 to 2017 was used to map and analyse the spatio-temporal development of land use and land cover changes. During the investigation period, the settlement areas grew by approximately 50% (from 103.3 to 153.6 km2), while areas with woody vegetation cover experienced dynamic changes and increased in size since 2001. Peri-urban and rural areas were characterized by highly dynamic changes, particularly regarding clearing and recovery of vegetated areas. Regression analyses were performed to identify the impact factors of detected vegetation cover changes. Computed logistic regression models included 20 independent variables, such as relief, climate, soil, proximity characteristics and socio-economic data. The results of this study may act as a basis to enable researchers and decision-makers to focus on the most important signals of systematic landscape transformations and on the conservation of ecosystems and the services they provide.

scholarly journals Management of rural territories land resources in decentralization conditions

2019 ◽  
pp. 24-36
Author(s):  
Andriy Sava ◽  
Borys Sydoruk ◽  
Roman Voloshyn
Keyword(s):  
Land Use ◽  
Rural Communities ◽  
Land Management ◽  
Rural Areas ◽  
Local Governments ◽  
Agricultural Land ◽  
Local Level ◽  
Land Resources ◽  
Resources Management ◽  
Community Needs

Introduction. Under decentralization, there is a gradual transfer of powers and resources to local governments. In this case, one of the most urgent problem for rural areas, is the organization of rational land management from the position of financial support improving through the disposing of lands, and using available lands for community needs. Methods. General and special methods – monographic and abstract-logical, methods of generalization, comparison and analysis have been applied for data processing. Results. During the decentralization reform, it was found that 488 rural united territorial communities were formed, covering almost half the area of all UTCs created. In addition, nearly 800 village councils joint to the city-based UTCs. The ways of the redistribution of powers on the UTC land resources management are established at the expense of acquiring their own powers, obtaining delegated ones, as well as acquiring the rights of other institutions. Emphasis is placed on the benefits of managing land resources of rural communities at the local level. It has been determined that the applicable law restrict communal land use of UTC. At the same time, the importance of agricultural land outside the settlement transfer to the disposal of communities is emphasized. The importance of the land payment in the structure of local budget revenues is analyzed in detail, the key problems and contradictions that accompany the process of land management powers reallocation are identified. Suggestions are made to improve the rural communities land resources management through their inventory, accounting and monitoring, revision of rental rates for communal property, strengthening control over compliance with the terms of land use agreements, use of free lands in the interests of communities. Discussion. Further studies in this area are going to be aimed at developing a comprehensive mechanism for ensuring effective management of land resources in rural areas after the completion of decentralization. Keywords: land resources, rural territories, decentralization, united territorial communities, local governments.

scholarly journals Challenges and Lessons Learned from Organizational Actions by Local Governments for Land Use Coordination in Disaster affected Rural Areas of Miyagi

2017 ◽  
Vol 35 (4) ◽  
pp. 514-520
Author(s):  
Shun NAKAZATO ◽  
Shizuka HASHIMOTO ◽  
Tomoya KISHIOKA ◽  
Hiroyuki ARITA ◽  
Masaharu GOHKO
Keyword(s):  
Land Use ◽  
Rural Areas ◽  
Local Governments ◽  
Lessons Learned

scholarly journals Spatial injustice in the formation of land use territories in united communities

2020 ◽  
Vol 75 (4) ◽  
pp. 81-98
Author(s):  
O. L. Popova ◽  
◽  
◽  
Keyword(s):  
Land Use ◽  
Economic Development ◽  
Population Density ◽  
Land Tenure ◽  
Rural Areas ◽  
Local Governments ◽  
Large Scale ◽  
The State ◽  
Land Resources ◽  
Socio Economic Development

The author revealed the injustices in the territories formation of the united territorial communities (UTC) under the local self-government reform, which are manifested in different, uneven volumes of their land use and the resource basis in general for local socio-economic development. The methodological approach used by the authorities in determining the capacity of united communities in their formation (in terms of compliance with the criteria – the area and the population density), led to the fact that in rural areas with low population density they had to form large UTCs to reach specific parameters by population. The hypothesis that territorially large UTCs are capable is ambiguous: on the one hand, land tenure and land use is a resource for socio-economic development of communities, on the other – in a large area the cost of providing essential services to the population in remote villages increases together with the administrative and other costs. Paper proves that large-scale rural UTCs should become objects of the state support as the “rural areas in unfavourable conditions” under the State Strategy for Regional Development for 2021–2027. The author justifies injustices in the centralization of powers on disposal of land resources. The land decentralization as a transfer of relevant powers to UTC local governments will be finally completed, according to the Decree of the President of Ukraine “On some measures to accelerate reforms in the field of land relations” № 449 from 15.10.2020, which will contribute to orderliness in this area and filling local budgets. It is also advisable within the UTCs to give internal communities the right to dispose of their economic territory’s land resources in these communities’ interests. The paper shows discriminatory aspects of administrative reformatting of 120 voluntarily formed and functioning UTCs, according to the Government’s long-term plans for 2020: by recognizing them as insufficiently capable, they should join other communities or unite into larger UTCs.

scholarly journals Correlation between Land Use and the Transformation of Rural Housing Model in the Coastal Region of Syria

2021 ◽  
Vol 13 (8) ◽  
pp. 4357
Author(s):  
Nebras Khadour ◽  
Nawarah Al Basha ◽  
Máté Sárospataki ◽  
Albert Fekete
Keyword(s):  
Land Use ◽  
Urban Sprawl ◽  
Rural Areas ◽  
Urban Areas ◽  
Social Life ◽  
Coastal Region ◽  
Rural Housing ◽  
Rural And Urban Areas ◽  
Plot Structure ◽  
The Relationship

The phenomenon of urban sprawl has caused radical changes in the spatial structure of cities and rural areas all around the world. Syria is among the developing countries that have experienced this phenomenon. Some of the resulted processes of urban sprawl like urbanization and counter-urbanization have had a clear impact on the land use and lifestyle in both cities and the countryside of different regions in Syria. This research focuses on the coastal region and the spatial changes that affected the nature of social life, such as the rapid growth of the population, the expansion of cities, and the new developments, which in turn have led to considerable changes in the relationship and scale of the house, garden, and landscape. The research studies the development of the rural housing model in the coastal region and its relation to the surrounding landscape. It tracks three phases of the housing unit’s development and conducts a comparative study on four villages using a questionnaire to evaluate the performance of those units. The results of this research show significant change in the relationship between rural and urban areas resulting from the new residential developments, as well as the relationship of land use and the historic plot structure and that of the garden and the house into the overall character of the landscape.

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