scholarly journals Human Capital, Skills, and Uneven Intraurban Employment Growth: The Case of Göteborg, Sweden, 1990–2008

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Jonathan Borggren ◽  
Rikard H. Eriksson
Keyword(s):  
Human Capital ◽  
Urban Areas ◽  
Employment Growth ◽  
Local Population ◽  
Urban Dynamics ◽  
High Concentrations ◽  
Growth Differences ◽  
Severe Recession

Recent research has elucidated the role of talents to explain urban growth differences but it remains to be shown whether urban dynamics, such as human capital and a mixed local population, can be linked to intraurban employment growth. By use of a unique longitudinal database, we track the economic development through the lens of intraurban employment growth of a number of primary urban areas (PUA) in Göteborg, Sweden. Regarding factors influencing employment growth, we find that relative concentrations of human capital protect areas from rising unemployment during severe recession (1990–1993) and recovery (1990–2000) while the composition of skills is beneficial during recovery (1990–2000) and long-term growth (1990–2008). Our findings suggest that neither too high concentrations of creative occupations nor too low ones are beneficial. Thus, human capital drives much of the employment changes in relation to the recession and early transition from manufacturing to service but composition of skills is more relevant for explaining long-term intraurban employment growth.

scholarly journals Mapping 20 Years of Urban Expansion in 45 Urban Areas of Sub-Saharan Africa

2021 ◽  
Vol 13 (3) ◽  
pp. 525
Author(s):  
Yann Forget ◽  
Michal Shimoni ◽  
Marius Gilbert ◽  
Catherine Linard
Keyword(s):  
Case Studies ◽  
Urban Areas ◽  
Urban Expansion ◽  
Local Population ◽  
Sub Saharan Africa ◽  
Annual Growth Rate ◽  
Urban Dynamics ◽  
Mapping Approach ◽  
Sub Saharan ◽  
The Impact

By 2050, half of the net increase in the world’s population is expected to reside in sub-Saharan Africa (SSA), driving high urbanization rates and drastic land cover changes. However, the data-scarce environment of SSA limits our understanding of the urban dynamics in the region. In this context, Earth Observation (EO) is an opportunity to gather accurate and up-to-date spatial information on urban extents. During the last decade, the adoption of open-access policies by major EO programs (CBERS, Landsat, Sentinel) has allowed the production of several global high resolution (10–30 m) maps of human settlements. However, mapping accuracies in SSA are usually lower, limited by the lack of reference datasets to support the training and the validation of the classification models. Here we propose a mapping approach based on multi-sensor satellite imagery (Landsat, Sentinel-1, Envisat, ERS) and volunteered geographic information (OpenStreetMap) to solve the challenges of urban remote sensing in SSA. The proposed mapping approach is assessed in 17 case studies for an average F1-score of 0.93, and applied in 45 urban areas of SSA to produce a dataset of urban expansion from 1995 to 2015. Across the case studies, built-up areas averaged a compound annual growth rate of 5.5% between 1995 and 2015. The comparison with local population dynamics reveals the heterogeneity of urban dynamics in SSA. Overall, population densities in built-up areas are decreasing. However, the impact of population growth on urban expansion differs depending on the size of the urban area and its income class.

Evaluating Change in Housing for Sustainable Development: Kosuyolu Case in Istanbul

2015 ◽  
Vol 40 (4) ◽  
pp. 55-62
Author(s):  
Dilek Yildiz
Keyword(s):  
Sustainable Development ◽  
Structured Interviews ◽  
Land Use Pattern ◽  
The Sustainable Development ◽  
Urban Dynamics ◽  
Unique Identity ◽  
Historic Memory ◽  
Alternative Scenarios

Sparse attention has been paid to the inevitable processes of change that enable progress in today's globalizing urban centres, but also threaten their unique identity, historic memory, and cultural heritage. The aims of this work are to understand the urban dynamics that trigger these change processes, uncover their effects, and discuss how these changes can be utilized to achieve sustainable development. The case study, which uses a comparative mixed method strategy consisting of archival research, fieldwork, and semi-structured interviews, is the Kosuyolu Housing Settlement, a project dating to the 1950s that represents one of Istanbul's best examples of urban development and housing culture. Displaying the architectural and urban planning ideals of the Modern period, this settlement is a concrete example that reflects the period's considerations regarding social housing. Through this case, change in housing has been evaluated in terms of sustainability indicators. The derived evidences show the significant role of governance and the maintained land use pattern for the achievement of the sustainable development and these evidences are used to suggest the development of an adaption guide that will assist in sustainable development in the short term, and the creation of alternative scenarios that are flexible and easy to adapt, active, and based on participatory processes for the long term.

scholarly journals The Role of Dispersal in Interacting Patches Subject to an Allee Effect

2013 ◽  
Vol 45 (4) ◽  
pp. 1182-1197
Author(s):  
N. Lanchier
Keyword(s):  
Allee Effect ◽  
Interacting Particle Systems ◽  
Local Population ◽  
Critical Value ◽  
Initial Distribution ◽  
Interacting Particle ◽  
Strong Allee Effect ◽  
Long Term Behavior

This article is concerned with a stochastic multipatch model in which each local population is subject to a strong Allee effect. The model is obtained by using the framework of interacting particle systems to extend a stochastic two-patch model that was recently introduced by Kang and the author. The main objective is to understand the effect of the geometry of the network of interactions, which represents potential migrations between patches, on the long-term behavior of the metapopulation. In the limit as the number of patches tends to ∞, there is a critical value for the Allee threshold below which the metapopulation expands and above which the metapopulation goes extinct. Spatial simulations on large regular graphs suggest that this critical value strongly depends on the initial distribution when the degree of the network is large, whereas the critical value does not depend on the initial distribution when the degree is small. Looking at the system starting with a single occupied patch on the complete graph and on the ring, we prove analytical results that support this conjecture. From an ecological perspective, these results indicate that, upon arrival of an alien species subject to a strong Allee effect to a new area, though dispersal is necessary for its expansion, fast long-range dispersal drives the population toward extinction.

scholarly journals Peri-Urban Dynamics in Murcia Region (SE Spain): The Successful Case of the Altorreal Complex

Urban Science ◽  
2018 ◽  
Vol 2 (3) ◽  
pp. 60
Author(s):  
Rubén Giménez García ◽  
Ramón García Marín ◽  
José Serrano Martínez ◽  
Manuel Pulido Fernández
Keyword(s):  
Urban Development ◽  
Spatial Pattern ◽  
Urban Areas ◽  
Local Population ◽  
Se Spain ◽  
Functional Changes ◽  
Urban Dynamics ◽  
Successful Case ◽  
City Model ◽  
The City

The spatial pattern of the urban development recently experienced by large urban areas is significantly changing the traditional city model based on its compactness. It is generating new forms of urban organization that imply morphological, territorial, social, and functional changes. We analyzed the spatial impact generated by the construction of the Altorreal resort in the Murcia region and its effects on the local population (e.g. number of inhabitants). The results obtained highlight the importance of this resort in terms of space and population compared with other neighborhoods of the city.

scholarly journals Natural Geography and Patterns of Local Population Growth and Decline in Spain: 1960–2011

2019 ◽  
Vol 11 (18) ◽  
pp. 4979 ◽  
Author(s):  
Adelheid Holl
Keyword(s):  
Population Growth ◽  
Rural Areas ◽  
Urban Areas ◽  
Population Change ◽  
Local Population ◽  
Growth Patterns ◽  
Detailed Data ◽  
Precipitation Seasonality ◽  
Growth Variation

This paper analyzes the role of natural geography for explaining local population change patterns. Using spatially detailed data for Spain from 1960 to 2011, the estimation results indicated that natural geography variables relate to about half of the population growth variation of rural areas and more than a third of the population growth variation of urban areas during this period. Local differences in climate, topography, and soil and rock formation as well as distance to aquifers and the coast contribute to variations in local population growth patterns. Although, over time, local population change became less related to differences in natural geography, natural geography is still significantly related to nearly a third of the variation in local population change in rural areas and the contribution of temperature range and precipitation seasonality has even increased. For urban areas, weather continues to matter too, with growth being higher in warmer places.

scholarly journals Long-Term (1951–2007) Rainfall Trends around Six Indian Cities: Current State, Meteorological, and Urban Dynamics

2013 ◽  
Vol 2013 ◽  
pp. 1-15 ◽  
Author(s):  
Shailesh Kumar Kharol ◽  
D. G. Kaskaoutis ◽  
Anu Rani Sharma ◽  
Ramesh P. Singh
Keyword(s):  
Urban Areas ◽  
Statistical Significance ◽  
Spatiotemporal Variability ◽  
Anthropogenic Emissions ◽  
Urban Dynamics ◽  
Current State ◽  
Rainfall Trends ◽  
Indian Cities ◽  
Rainy Days

The present study focuses on analyzing the precipitation trends over six Indian cities during the summer monsoon (June–September) covering the period 1951–2007 and also attempting to investigate possible urban forcing and dynamics by examining the variation in precipitation in the upwind and downwind directions. The analysis shows negative trends in the total number of rainy days over Hyderabad (−10.4%), Kanpur (−7.1%), Jaipur (−10.5%), and Nagpur (−4.8%) and positive trends over Delhi (7.4%) and Bangalore (22.9%). On the other hand, decreases of −21.3%, −5.9%, −14.2%, and −14.6% in seasonal rainfall are found over Delhi, Hyderabad, Jaipur, and Kanpur, respectively, whereas Bangalore and Nagpur show 65.8% and 13.5% increase. The lesser rainfall and rainy days, along with the mostly declining trend, in the downwind directions of the cities may imply an urban influence in precipitation associated with the increased anthropogenic emissions due to expansion of the urban areas and the increase of population. However, the large spatiotemporal variability of precipitation and the lack of statistical significance in the vast majority of the trends do not allow the extraction of safe conclusion concerning the aerosol-precipitation interactions around Indian cities.

Temporal evolution and spatial distribution of heavy metals in a stormwater infiltration basin – estimation of the mass of trapped pollutants

2007 ◽  
Vol 56 (12) ◽  
pp. 93-100 ◽  
Author(s):  
S. Le Coustumer ◽  
P. Moura ◽  
S. Barraud ◽  
B. Clozel ◽  
J.-C. Varnier
Keyword(s):  
Heavy Metals ◽  
Urban Areas ◽  
Total Mass ◽  
Temporal Evolution ◽  
Infiltration Basin ◽  
Major Interest ◽  
High Concentrations ◽  
Stormwater Infiltration ◽  
Stormwater Infiltration Basin

Infiltration systems are widely used to manage stormwater in urban areas but questions about their long term sustainability need to be addressed. The possible pollution of the groundwater and the concentration of pollutant trapped in the soil are of major interest. This article focuses on the concentration of heavy metals found in the top layer of an infiltration basin. Two sampling campaigns have been undertaken 10 months apart and 200 samples were collected and analysed for lead (Pb), zinc (Zn) and copper (Cu). High concentrations were measured at the surface of the system; pollutant build up over time is clearly evident, especially in the lower lying areas, as well as higher concentrations in the oldest part of the system. Finally, the total mass of heavy metals trapped in the top layer of the systems are evaluated.

scholarly journals Mengkaji Kesehatan Masyarakat Daerah “Urban” Jika Dilihat Dari Konteks Pemuda

2018 ◽  
Vol 4 (4) ◽  
pp. 230
Author(s):  
Robist Hidayat
Keyword(s):  
Urban Health ◽  
Urban Areas ◽  
Central Government ◽  
Urban Community ◽  
Large Cities ◽  
Urban Problems ◽  
The Government ◽  
Descriptive Method

<p><em>Abstra</em><em>k</em><strong><em> -</em></strong> <strong>Kesehatan merupakan faktor penting  kehidupan, tak terkecuali  kaum urban di perkotaan besar di Indonesia, banyak permasalahan terjadi, prasarana idak memadai, kehidupan yang buruk menimbulkan masalah serius baik sekarang dan masa yang akan datang. Salah satu bagian kaum urban adalah pemuda, merupakan kaum di antara anak-anak dan juga dewasa. Sehingga di harapkan memiliki solusi untuk menghadapi permsaalahan tersebut.</strong><strong> </strong><strong>Penelitian ini bertujuan untuk melihat bagaiman peranan pemuda mengkaji permasalahan yang terjadi sehingga bisa mendapatkan solusi sederhana untuk mengatasi permasalahan kaum urban diperkotaan besar. Adapun metode yang digunakan penulis yakni metode deskriptif, mengkaji serta menganalisis literasi-literasi yang ada dan menyimpulkan menjadi sebuah solusi dari permasalahan yang penulis ungkapkan. Adapun hasil dari penelitian ini ,bahwa permasalahan kaum urban terletak pada tidak adanya program yang jelas serta terperinci secara baik, baik itu dari pemerintah daerah maupun pusat. Sehingga hal ini menjadi permasalahan bersama bukan salah satu pihak semata. Adapun yang bisa pemuda berikan solusi: yakni mencangkup program dan juga kebijakan, program yang di berikan yakni terdiri 3 tahap,</strong><strong> </strong><strong>yaitu: jangka pendek, menengah dan panjang. Adapun alasannya yaitu program tersebut di  terapkan sesuai dengan kebutuhan kaum urban serta kebijakan yang  merupakan wewenang dari pemerintah. Bisa disimpulkan, pemuda memiliki peranan penting dalam mengkaji ataupun memberikan solusi yang terbaik untuk kesehatan kaum urban.</strong></p><p><em>Abstract </em><strong>- Health is an important factor of life, including urban in large urban areas in Indonesia, many problems occur, infrastructure is inadequate, a bad life causes serious problems both now and in the future. One part of the urban community is youth, is a family among children and also adults. So that it is expected to have a solution to deal with these problems. This study aims to see how the role of youth examines the problems that occur so that they can get a simple solution to overcome urban problems in large cities. The method used by the author is descriptive method, reviewing and analyzing existing literacy and concluding to be a solution to the problems that the writer reveals. The results of this study, that the problem of urbanites lies in the absence of a clear and well-detailed program, both from the local and central government. So this matter becomes a common problem, </strong><strong>not</strong><strong> only one part. As for what the youth can provide a solution: namely covering the program and also the policy, the program provided is consisting of</strong><strong> </strong><strong>3 stages, namely: short, medium and long term. The reason is that the program is implemented in accordance with the needs of the urbanites and policies that are the authority of the government. It can be concluded, youth have an important role in assessing or providing the best solution for urban health.</strong></p><p><strong><em>Keywords</em></strong> – <em>Role of Youth, </em><em>Urban Community Health, Problems, Programs</em><em></em></p>

Global cities could power economic growth

2015 ◽  
Keyword(s):  
Economic Growth ◽  
Urban Areas ◽  
Content Type ◽  
Large Cities ◽  
Basic Services ◽  
Global Economic Growth ◽  
Basic Infrastructure ◽  
Funding Gap

Subject The role of cities in global economic growth. Significance Cities, defined as metropolitan areas with over 500,000 inhabitants, are powering global economic growth. However, by 2014 the results were uneven, as the cities with the highest growth lie in developing countries, mainly in China, while many North American and European cities remain trapped in recession. Current urbanisation models are unsustainable in the long term, posing threats to future economic prosperity. Impacts Most large cities' economies are growing faster than their respective countries and will continue doing so. The less wealthy developing urban areas will converge economically with their more developed peers. The existing patterns of urban sprawl in many cities will lead to an increasing funding gap in basic infrastructure. This funding gap could cause the failure of many cities to deliver basic services such as transport.

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