scholarly journals Streams’ and Springs’ Biophysical Dynamics as Structuring Elements of Future Urban Development: Systemic Strategies for Spatial Planning - A Case Study in Uberlândia, MG, Brazil

Author(s):  
Julia Figueiredo-Cunha ◽  
Raquel Tardin-Coelho

Abstract Historically, water bodies were gradually conditioned by unsustainable spatial planning practices, which led to conflicting and fragmented relationships between urban development and water dynamics. Streams and springs are more vulnerable to urban interventions and less identified as protagonists of urban structuring than rivers. However, they present the potential to guide urban development regarding their broad capillarity, easy manipulation and close relationship with urban fabrics, especially in developing country fast-urbanisation reality. Also, there is a demand for more holistic and practical approaches regarding water dynamics and urban development alternatives that can add value to water-centred initiatives focused on water management. This article proposes a methodological framework focused on formulating systemic spatial planning strategies (land-use and urban design guidelines) based on streams’ and springs’ spatially and functionally biophysical dynamics as structuring elements of future urban development towards composing one urban-eco system. The following principles guide the planning strategies: a) to guarantee water dynamics whole functioning as constraints to urban land-use definition; b) to promote potential functional and spatial integration between the urban fabric and water bodies that guide the configuration of urban fabrics according to the whole functioning of water dynamics. The spatial planning strategies show the potential to be systematically applied throughout a city, systemically addressing and integrating water dynamics and urban development issues towards a more sustainable and resilient reality, on a broader scale perspective and not only on-site symptoms.

Land ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 715
Author(s):  
Yingkai Tang ◽  
Kun Wang ◽  
Xuanming Ji ◽  
He Xu ◽  
Yangqing Xiao

Rapid urbanization has provided a strong impetus for the economic growth of China, but it has also caused many problems such as inefficient urban land use and environmental pollution. With the popularization of the concept of green and sustainable development, the Environmental-Social-Governance (ESG) assessment concept is widely accepted. The government and residents are paying more and more attention to environmental issues in urban development, and environmental protection has formed an important part of urban development. In this context, this study takes 26 cities in the Yangtze River Delta as examples to build an evaluation system for urban land-use efficiency under green development orientation. The evaluation system takes into account the inputs of land, capital, labor, and energy factors in the process of urban development. Based on emphasizing economic output, the social benefits and undesired outputs brought about by urban development are taken into account. This paper measures urban land use efficiency by the super-efficiency SBM model, and on this basis, analyses the spatial-temporal evolution characteristics of urban land-use efficiency. Further, this paper measures urban land use efficiency without considering undesired outputs and compares the two evaluation methods. Again, the comparison illustrates the rationality of urban land use efficiency evaluation system under green development orientation.


2015 ◽  
Vol 3 (7) ◽  
Author(s):  
Juan Miguel Rodríguez López ◽  
Pablo Rosso ◽  
Jürgen Scheffran ◽  
Gian Carlo Delgado Ramos

<p class="p1"><span class="s2"><strong>Abstract </strong></span>| Mexico City is one of the largest cities on the globe and a site where important transformations of nature reserves into urban areas have been taking place<span class="s3"><strong>. </strong></span>This paper compared the southern part of Mexico City based on free images available (Landsat – 30m) and high-resolution imagery (RapidEye – 5m) from an explorative qualitative perspective in the logic of reliability and validity<span class="s3"><strong>. </strong></span>We argue that the resolution of the free imagery available for the assessment of urban development on the structural level of land use is not sufficient to identify the development of specific parts of the city<span class="s3"><strong>. </strong></span>Despite the fact that the general pattern of changes in land use is observable, changes within the urban structure are difficult to see with a resolution of 30 meters per pixel in the Landsat images<span class="s3"><strong>. </strong></span>For validity, this analysis is merely graphic, and it shows a promising matching of urban development with environmental and land complaints, nevertheless, a numerical analysis is needed in the future.<strong></strong></p>


Author(s):  
Meisam Jafari ◽  
Seyed Masoud Monavari ◽  
Hamid Majedi ◽  
Ali Asghar Alesheikh ◽  
Mirmasoud Kheirkhah Zarkesh

Although, promotion of urbanization culture in recent decades has made inevitable development of cities in the world, however, the development can be guided in a direction that leave, to the extent possible, minimum socioeconomic and environmental impacts. For this, it is required to first forecast auto-spreading orientation of cities and suburbs in rural areas over time and then avoid shapeless growth of cities. This paper is an attempt to develop a dynamic hybrid model based on logistic regression (LR), Markov chain (MC), and cellular automata (CA) for prediction of future urban sprawl in fast-growing cities. The model was developed using 12 widely-used urban development criteria, whose significant coefficient was determined by logistic regression, and validated by relative operating characteristic (ROC) analysis. The validated model was run in Guilan, a tourist province in northern Iran with a very high rate of urban development. For this, changes in the area of urban land use were detected over the period of 1989 to 2013 and then, future sprawl of the province was forecasted by the years 2025 and 2037. The analysis results revealed that the area of urban land use was increased by more than 1.7 % from 36012.5 ha in 1989 to 59754.8 ha in 2013, and the area of Caspian Hyrcanian forestland was reduced by 31628 ha. The results also predicted an alarming increase in the rate of urban development in the province by the years 2025 and 2037, during which urban land use is predicted to develop 0.9 % and 1.38 %, respectively. The development pattern is expected to be uneven and scattered, without following any particular direction. The development will occur close to the existing or newly-formed urban basements as well as around major roads and commercial areas. This development, if not controlled, will lead to the loss of 13863 ha of Hyrcanian forests and if the trend continues, 21013 ha of Hyrcanian forests and 20208 ha of Barren/open lands are expected to be destroyed by the year 2037. In general, the proposed model is an efficient tool for the support of urban planning decisions and facilitates the process of sustainable development of cities by providing decision-makers with an overview on future development of cities where the growth rate is very fast.


2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Eko N Setiawan ◽  
Ahmad Maryudi ◽  
Ris H Purwanto ◽  
Gabriel Lele

AbstractLaw No. 26 Year 2007 on Spatial Planning (UUPR) mandated that all levels of government administration, ranging from the national, provincial, district/ city are obligated to prepare Spatial Plan (RTR). Until 2012, Central Kalimantan is one of the provinces which have not completed its Spatial Plan; one of the reasons was the lack of spatial integration of forestry spatial planning and provincial spatial planning of Central Kalimantan.The absence of spatial integration of forestry and provincial spatial planning of Central Kalimantan has the implication in triggering conflicts of land use. Forest areas were converted into oil palm plantations without any official procedures. There are 282 units of oil palm companies, occupying 3.9 millions hectares of forest area, with non-procedural procedures to convert forest area into oil palm plantation.To resolve this problem, the Government has revised the regulation of forest conversion by issuing PP No. 60/2012, provides opportunities for oil palm plantations, which under the Law of Forestry located in forest area but based on RTRWP of Central Kalimantan lies on APL or cultivation area, given the opportunity to re-apply the permit/license.  IntisariUndang- Undang No. 26 Tahun 2007 tentang Penataan Ruang (UUPR) mengamanatkan bahwa semua tingkatan administrasi pemerintahan, mulai dari nasional, provinsi, kabupaten/kota diwajibkan menyusun Rencana Tata Ruang (RTR). Kalimantan Tengah sampai dengan tahun 2012 merupakan salah satu Provinsi yang belum menyelesaikan Tata Ruang, salah satu penyebabnya karena belum adanya padu serasi antara tata ruang kehutanan dengan tata ruang Provinsi Kalimantan Tengah.Implikasi dari tidak adanya padu serasi antara tata ruang kehutanan dengan tata ruang provinsi Kalimantan Tengah adalah terjadinya konflik dalam penggunaan ruang, dimana terjadi penggunaan kawasan hutan tidak prosedural untuk perkebunan sawit di dalam kawasan hutan di Provinsi Kalimantan Tengah sebanyak 282 unit perusahaan sawit seluas 3,9 juta hektar.Upaya penyelesaian permasalahan penggunaan kawasan hutan untuk perkebunan sawit di Provinsi Kalimantan Tengah diakukan dengan revisi kebijakan tentang alih fungsi hutan PP nomor 60 tahun 2012 yang memberikan kesempatan bagi perkebunan sawit yang berdasarkan Undang-Undang Kehutanan berada di dalam kawasan hutan namun berdasarkan RTRWP Provinsi Kalimantan Tengah berada di kawasan APL maupun budidaya, diberikan kesempatan untuk mengurus perijinannya.


2021 ◽  
Vol 23 (1(78)) ◽  
pp. 95-114
Author(s):  
L.Ye. KUPINETS ◽  
H.O. TIUTIUNNYK

Topicality. In the context of urban development, the issue of urban management in order to prevent risks and solve economic, environmental, socio-psychological problems of urban development with their impact on human life becomes relevant. Aim and tasks. The aim of the study is to substantiate the essence of managing the formation of local areas as a human habitat and material base in terms of urbanization processes as complex socio-economic and ecological systems. Tasks of the study: analysis of the preconditions, positive and negative features of the development of urban processes; characteristics of trends and stages of urban processes in the world; presentation of a new approach to the study of the city, taking into account its multifunctionality and interdisciplinarity; consideration of current trends and factors in the development of cities and urban settlements; coverage of the socio-psychological side of the development of urban processes; substantiation of the approach to planning and management of urban land use on the basis of a new model of urban territory through the formation of "atmosphere" as a nonlinear system of inevitable interaction of ecosystems, economic and socio-psychological relations; development of principles of urban areas management through socio-economic-ecological components in the context of modern urban processes. Research results. The preconditions, tendencies, risks, ways of development of urbanization are analyzed, the characteristic of a modern condition of this process is given. The study of urban space in terms of demographic, urban, environmental, social, economic and information aspects is substantiated. Factors of development of urban processes, in particular demographic, economic, ecological, town-planning, social and cultural are considered. Modern trends in urban development and urban settlements are described. The directions of risk prevention and solution of economic, ecological, social and psychological problems and problems of development of urban processes with their influence on human life and socio-ecological development of economy are presented. The formation of a new model of the territory of cities on the basis of a nonlinear system - "atmosphere" taking into account the socio-psychological side of the development of urban processes is substantiated. Conclusion. The main goal of the current stage of urban processes requires research and the formation of new approaches to the management of a complex system called "city" and its territories. The new model requires taking into account the socio-economic and ecological potential of the territory, conservation, rational use and reproduction of resources in the relevant area. Particular attention needs to be taken into account socio-psychological and a variety of other factors, according to which urban settlements are developing and functioning, gaining rapid growth with the development of urban processes. The greatest attention is paid to the problems of compliance with environmental requirements, conservation of land use, biodiversity and the general state of the ecosystem.


Land ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 43
Author(s):  
Silvia Tobias ◽  
Bronwyn Price

Spatial planning plays an important role in cropland protection, but its effectiveness is often questioned in the face of ongoing urban and infrastructure growth. Moreover, methods to assess the effectiveness of spatial planning are lacking. In Switzerland, the revision of the national spatial planning act in 2014 was a new starting point for stricter prescriptions on urban development. We assessed whether the new regulations would better protect dedicated prime cropland from conversion to urban areas using land-use suitability models and land-use scenarios. The findings show that with the planning according to the revised planning act, the potential consumption of prime cropland for new urban areas is six times smaller than that occurring through extrapolation of the observed trend in urban development over the past 25 years. However, scenario modeling suggests that, still, more prime cropland will be converted into urban areas than necessary, and that it may be difficult to protect prime cropland to the extent mandated by the Swiss prime cropland protection policy. We have developed an approach to a priori evaluate spatial planning measures. However, the strict implementation of these planning measures will be needed in order to maintain prime cropland to a level required for agricultural self-sufficiency and food security.


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