scholarly journals Fostering Urban Sustainability through the Ecological Wisdom of Traditional Settlements

2020 ◽  
Vol 12 (23) ◽  
pp. 10033
Author(s):  
Naji Akbar ◽  
Ismaila Rimi Abubakar ◽  
Adel Saleh Bouregh

Several African and Asian countries have embarked on building new towns to address urbanization challenges such as crowded cities, slums, and pressure on existing infrastructure. These projects have been criticized for being inadequate in fostering environmental sustainability. Based on a desk study, this article reviews the environmental sustainability challenges of these projects and recommends some ecologically embedded practices of traditional settlements that wonderfully survived for many centuries with little adverse social and environmental impacts yet offered opportunities for urbanism. The article discusses how the architecture, urban form, and green infrastructure of traditional settlements present excellent cases of ecological wisdom and embeddedness where the local ecosystems are respected, and every human activity, including the creation of the built environment, is defined by the ecological allowances, where resilience is part of the built environment at both micro and macro scales, and where humanity and nature are equal stakeholders living in unison. The article concludes that these instances of successful ecological embeddedness in traditional settlements can provide lessons for contemporary cities to ponder when envisioning more sustainable built environments for the present and future generations.

2021 ◽  
Vol 18 (2) ◽  
pp. 226
Author(s):  
Enni Lindia Mayona

ABSTRACTCity growth that continues to occur is unavoidable and affects the environment, so an ecological approach is needed to overcome it. One of the city concepts that has developed along with the historical perspective of urban ecology is the ecological city (ecocity). In the development of ecocity in several countries that carry the theme of sustainability city, both practice and concept do not explain the "process" to achieve the city's environmental sustainability goals. The purpose of this paper is to examine the theoretical position of the ecological city concept within the framework of urban ecology and sustainable cities. The method used is a literature review based on the development of the concept of ecocity, urban ecology and sustainable city. Based on the results of the study, it shows that in the urban ecology approach, ecocity can be concluded as a concept that balances the city's metabolism (ecology of cities) through the independence of the structure and function of the ecosystem where humans play a role in determining the process of adaptation and urban development. In the concept of a sustainable city along with the development of eco-form which represents ecological considerations in urban and community spaces, it shows that urban form is one of the elements that can be intervened in achieving sustainable city goals. Ecocity as an eco-form is in the challenge of conflict between aspects of the social environment where the conflict that occurs has shifted from development conflict to green conflict in a sustainable prism. The results of the study show that in the process of managing an environmentally sound city environment (ecocity) it is necessary to consider the integration of humans as social aspects in interaction with ecosystems (social-ecology) in city metabolism as the basis for providing ecosystem services and urban green infrastructure. Keywords: ecological city, city ecology, sustainable city, city metabolism ABSTRAKPertumbuhan kota yang terus terjadi tidak dapat dihindari dan berpengaruh terhadap lingkungan, sehingga dibutuhkan pendekatan ekologi untuk mengatasinya. Salah satu konsep kota yang berkembang seiring dengan perspektif sejarah ekologi kota (urban ecology) adalah ecological city (ecocity). Pada perkembangan ecocity di beberapa negara yang mengusung tema kota keberlanjutan baik praktek maupun konsep tidak menjelaskan “proses” untuk mencapai tujuan keberlanjutan lingkungan kota tersebut. Tujuan makalah ini adalah mengkaji kedudukan secara teoritis konsep ecological city dalam kerangka ekologi kota (urban ecology) dan kota berkelanjutan (sustainability city).  Metode yang digunakan adalah review literatur berdasarkan perkembangan konsep ecocity, urban ecology dan sustainable city. Berdasarkan hasil kajian menunjukkan dalam pendekatan urban ecology, ecocity dapat disimpulkan sebagai konsep yang menyeimbangkan metabolisme kota (ecology of cities) melalui kemandirian struktur dan fungsi ekosistem  dimana manusia berperan di dalam menentukan proses adaptasi dan perkembangan kota. Dalam konsep kota berkelanjutan seiring dengan perkembangan eco-form yang merepresentasikan pertimbangan ekologi di dalam ruang kota dan komunitas menunjukkan bentuk kota (urban form) merupakan salah satu unsur yang dapat diintervensi  di dalam mencapai tujuan kota yang berkelanjutan. Ecocity sebagai eco-form berada di dalam tantangan konflik antara aspek lingkungan sosial dimana konflik yang terjadi mengalami pergeseran dari development conflict ke arah green conflict di dalam prisma berkelanjutan. Hasil kajian menunjukkan di dalam proses pengelolaan lingkungan kota yang berwawasan lingkungan (ecocity) perlu mempertimbangkan integrasi manusia sebagai aspek sosial dalam interaksi dengan ekosistem (sosial-ekologi) di dalam metabolisme kota sebagai dasar di dalam penyediaan ecosystem services dan infrastruktur hijau perkotaan.Kata Kunci : ecological city, ekologi kota, kota berkelanjutan, metabolisme kota


2021 ◽  
Vol 13 (4) ◽  
pp. 1653
Author(s):  
Miho Kamei ◽  
Alessio Mastrucci ◽  
Bas J. van Ruijven

The evolution of long-term sustainable societies is closely connected to the transformation of the physical built environment in which those societies operate. In this paper, we present a comprehensive set of narratives for the built environment in Japan, consistent with the shared socio-economic pathways (SSPs) framework, to assess the future evolution of the adaptation and mitigation challenges. We focus on the linkage between sustainability factors and human living environments including urban form, buildings, and basic infrastructures. We introduce a new, sixth narrative to the SSPs, an alternative interpretation of SSP1. Whereas the original SSP1 assumes high societal and environmental sustainability combined with relatively high economic growth, the SSP1 variant does not highly rely on economic growth and is oriented towards a lower and more locally oriented consumption lifestyle. Nature-based solutions are integrated and examined in the new SSP1 narrative, which is aligned with the adaptation to the digital era with freedom of location. Recent global crises such as climate change and the COVID-19 pandemic may accelerate the transformation of societies. Therefore, this study attempts to imply the benefits and trade-offs of alternative pathways for the built environment.


Author(s):  
Marc J. Stern

Social science theory for environmental sustainability: A practical guide makes social science theory accessible and usable to anyone interested in working toward environmental sustainability at any scale. Environmental problems are, first and foremost, people problems. Without better understandings of the people involved, solutions are often hard to come by. This book answers calls for demonstrating the value of theories from the social sciences for solving these types of problems and provides strategies to facilitate their use. It contains concise summaries of over thirty social science theories and demonstrates how to use them in diverse contexts associated with environmental conflict, conservation, natural resource management, and other environmental sustainability challenges. The practical applications of the theories include persuasive communication, conflict resolution, collaboration, negotiation, enhancing organizational effectiveness, working across cultures, generating collective impact, and building more resilient governance of social-ecological systems. Examples throughout the book and detailed vignettes illustrate how to combine multiple social science theories to develop effective strategies for environmental problem solving. The final chapter draws out key principles for enhancing these efforts. The book will serve as a key reference for environmental professionals, business people, students, scientists, public officials, government employees, aid workers, or any concerned citizen who wants to be better equipped to navigate the social complexities of environmental challenges and make a meaningful impact on any environmental issue.


2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Yanan Liu ◽  
Dujuan Yang ◽  
Harry J. P. Timmermans ◽  
Bauke de Vries

AbstractIn urban renewal processes, metro line systems are widely used to accommodate the massive traffic needs and stimulate the redevelopment of the local area. The route choice of pedestrians, emanating from or going to the metro stations, is influenced by the street-scale built environment. Many renewal processes involve the improvement of the street-level built environment and thus influence pedestrian flows. To assess the effects of urban design on pedestrian flows, this article presents the results of a simulation model of pedestrian route choice behavior around Yingkoudao metro station in the city center of Tianjin, China. Simulated pedestrian flows based on 4 scenarios of changes in street-scale built environment characteristics are compared. Results indicate that the main streets are disproportionally more affected than smaller streets. The promotion of an intensified land use mix does not lead to a high increase in the number of pedestrians who choose the involved route when traveling from/to the metro station, assuming fixed destination choice.


Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3470
Author(s):  
Xueqing Kang ◽  
Farman Ullah Khan ◽  
Raza Ullah ◽  
Muhammad Arif ◽  
Shams Ur Rehman ◽  
...  

In selected South Asian countries, the study intends to investigate the relationship between urban population (UP), carbon dioxide (CO2), trade openness (TO), gross domestic product (GDP), foreign direct investment (FDI), and renewable energy (RE). Fully modified ordinary least square (FMOLS) and dynamic ordinary least square (DOLS) models for estimation were used in the study, which covered yearly data from 1990 to 2019. We used Levin–Lin–Chu, Im–Pesaran–Shin, and Fisher PP tests for the stationarity of the variables. The outcomes of the panel cointegration approach looked at whether there was a long-run equilibrium nexus between selected variables in Pakistan, Bangladesh, India, and Sri Lanka. The FMOLS approach was also used to assess the relationship, and the results suggest that there is a significant and negative nexus between FDI and renewable energy in south Asian nations. The study’s findings reveal a strong and favorable relationship between GDP and renewable energy use. In South Asian nations (Sri Lanka, Pakistan, India, and Bangladesh), the FMOLS and DOLS findings are nearly identical, but the authors used the DOLS model for robustification. According to the findings, policymakers in South Asian economies (Sri Lanka, Pakistan, India, and Bangladesh) should view GDP and FDI as fundamental policy instruments for environmental sustainability. To reduce reliance on hazardous energy sources, the government should also reassure financial sectors to participate in renewable energy.


Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 905 ◽  
Author(s):  
Lochana Poudyal ◽  
Kushal Adhikari ◽  
Moon Won

Despite lower environmental impacts, the use of Portland Limestone Cement (PLC) concrete has been limited due to its reduced later age strength and compromised durability properties. This research evaluates the effects of nano calcium carbonate (CaCO3) on the performance of PLC concrete. The study follows a series of experiments on the fresh, hardened, and durability properties of PLC concrete with different replacement rates of nano CaCO3. Incorporation of 1% nano CaCO3 into PLC concrete provided the optimal performance, where the 56 days compressive strength was increased by approximately 7%, and the permeability was reduced by approximately 13% as compared to Ordinary Portland Cement (OPC) concrete. Further, improvements were observed in other durability aspects such as Alkali-Silica Reaction (ASR) and scaling resistance. Additionally, nano CaCO3 has the potential to be produced within the cement plant while utilizing the CO2 emissions from the cement industries. The integration of nanotechnology in PLC concrete thus will help produce a more environment-friendly concrete with enhanced performance. More in-depth study on commercial production of nano CaCO3 thus has the potential to offer a new generation cement—sustainable, economical, and durable cement—leading towards green infrastructure and global environmental sustainability.


Author(s):  
Parino Rahardjo ◽  
Emirhadi Suganda ◽  
Djoko Harono ◽  
Hadi Arifin

Within the town, Abiotic is a built environment that includes buildings, roads, pedestrians, and other elements that interact with biotics, which are living things including plants, animals, and humans. From a landscape ecological perspective, the urban structure consists of (1) a matrix, which is a collection of dominant buildings and homogeneous elements, (2) Patches are grouped as housing, urban forests, parks, lakes, and finally (3) Corridors such as roads, rivers, and pedestrians. The dominance of watertight areas over green open spaces in urban development can lead to increased temperatures and runoff. The condition of the soil structure and the steep slope of the soil can cause landslides, therefore urban development must pay attention to the natural conditions of the area being built. This research was conducted in Kota Baru, Bogor, South Tangerang, and Cikarang (Bekasi Regency). The purpose of this study is to determine the natural environment and the built environment as well as changes in the ecosystem and their consequences for the new town and its surroundings. This research uses quantitative and qualitative approaches. Analysis of land-use change uses spatial and temporal methods, while Nieuwolt's equation is used to measure comfort. This study finds comfortable environmental planning, with green open spaces such as urban forests, city parks, and bodies of water, such as lakes, as a space for interaction between fellow new city residents and people outside the new towns.


Author(s):  
Agnieszka Wir-Konas ◽  
Kyung Wook Seo

Between territories: Incremental changes to the domestic spatial interface between private and public domains. Agnieszka Wir-Konas¹, Kyung Wook Seo¹ ¹Department of Architecture and Built Environment, Northumbria University, Newcastle upon Tyne. Newcastle City Campus, 2 Ellison Pl, Newcastle upon Tyne NE1 8ST. E-mail: [email protected], [email protected] Keywords (3-5): building-street interface, incremental change, micro-morphology, private-public boundary, territory Conference topics and scale: Urban form and social use of space   In this paper we investigate incremental changes to the relationship between private and public territory on the micro-morphological scale of the residential building-street interface. The building-street interface lies on the edge between two distinctively different spatial domains, the house and the street, and provides a buffer which may be adjusted to aid the transition from private to public territory. The structure of the space impacts both domains: it provides a fit transition from the private dwelling to the public territory, creates a space for probabilistic encounters between inhabitants and strangers, and maintains the liveability of the public street. The aim of this paper is threefold: Firstly, we recognise morphological differences in the structure of the interfaces and the way the transition from private to public territory was envisioned and designed in different societal periods. Secondly, we study incremental changes to the interface, representing individual adjustments to the private-public boundary, in order to recognize common types of adaptations to the existing structure of the interface. The history of changes to each individual building and building-street interface was traced by analysing planning applications and enforcements publicly provided by the city council. Lastly, we compare the capacity of each building-street interface to accommodate incremental change to the public-private transition. We argue that studying the incremental change of the interface and the capacity of each interface to accommodate micro-scale transformations aids in the understanding of the complex social relationship between an individual and a collective in the urban environment.   References (180 words) Conzen, M. R. G. (1960). Alnwick, Northumberland: a study in town-plan analysis. Transactions and Papers (Institute of British Geographers) 27, iii-122. Gehl, J. (1986) ‘Soft edges in residential streets’. Scandinavian Housing and Planning Research 3(2), 89-192 Gehl, J. (2013) Cities for People (Island Press, Washington DC). Habraken, N. J. and Teicher, J. (2000) The structure of the ordinary: form and control in the built environment (MIT press, Cambridge). Hillier, B. and Hanson, J. (1984) The Social Logic of Space (Cambridge: Cambridge University Press). Jacobs, J. (1961) The Death and Life of Great American Cities (Middlesex: Penguin, Harmondsworth). Lawrence, R. J. (1987) Housing, dwellings and homes: Design theory, research and practice (John Wiley, Chichester). Palaiologou, G., Griffiths, S., and Vaughan, L. (2016), ‘Reclaiming the virtual community for spatial cultures: Functional generality and cultural specificity at the interface of building and street’. Journal of Space Syntax 7(1), 25-54. Whitehand, J. W. R. and Morton, N. J. and Carr, C. M. H. (1999) ‘Urban Morphogenesis at the Microscale: How Houses Change’, Environment and Planning B: Planning and Design 26(4), 503-515.


2015 ◽  
Vol 10 (1) ◽  
pp. 81-102
Author(s):  
Youngho Chang ◽  
Jiesheng Tan ◽  
Letian Chen

Studies on sustainable development rely on diverse and seemingly conflicting concepts that yield contrasting results. The root of these conflicting concepts is the lack of agreement on the path toward achieving sustainable development (SD), namely, weak (or economic) versus strong (or ecological) sustainability. This article revisits the Solow-Hartwick model (Solow 1974, 1986; Hartwick 1977, 1978a, 1978b), which suggests that an economy can achieve intergenerational equity by mandating the Hartwick rule of investing the amount of rents from natural capital into renewable capital. It constructs a modified Solow-Hartwick model in which the assumptions of constant population and no technological progress are relaxed and from which it derives a more general form of the Hartwick rule. The modified Solow-Hartwick investment rule presents how weak sustainability can be attained and explains how the residual Hotelling rents (or proceeds from natural resources) could be utilized in order to achieve strong sustainability. In this article, we apply the modified Solow-Hartwick investment rule to a selection of developing and developed Asian economies to assess their sustainability. We then compare our results with two existing measures of sustainability, the genuine savings (GS) model and the Environmental Sustainability Index (ESI), both of which frequently present contradicting evaluations on the status of sustainability.


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