scholarly journals COPING WITH THE LAND GAME: A NETWORK ANALYSIS OF COMMUNITY RESILIENCE IN HUE’S PERI-URBAN AREAS, VIETNAM

2019 ◽  
Vol 128 (5C) ◽  
pp. 33
Author(s):  
Nguyen Quang Phuc
Keyword(s):  
Urban Areas ◽  
Urban Expansion ◽  
Community Resilience ◽  
Civil Society Organizations ◽  
Rapid Urbanization ◽  
Family Networks ◽  
Trade Networks ◽  
Trade Offs ◽  
The Face ◽  
Using Data

<p><strong>Abstract</strong>: In Vietnam, urban expansion and its effects have appeared as a contentious issue among journalists, civil society organizations, academics, and NGOs in recent years. Along with the rapid urbanization, farmers in peri-urban areas are increasingly confronted with a loss of land as well as a change in livelihood strategies as the consequence of government policies. Using data from household surveys in the peri-urban village of Hue – Dạ Lê Chánh, the author attempts to answer the question “How do mobility practices reflect community resilience in the face of developmental processes of change?” The result indicates that as a peri-urban area, the proximity to Hue City, offers many employment opportunities. However, a focus on mobility shows that social and family networks are utilised for extended movement throughout the country and beyond. Mobility is shown to be a vital feature in the formation and maintenance of livelihood trajectories, allowing community access to human, information, financial and trade networks. In the face of these different demands on land in Vietnam, what is the future for a locality such as Dạ Lê Chánh? Caught in a web of future trade-offs, we find it foolhardy to speak of sustainable development when the appropriate line of development is unclear. However, within the push and pull of the land game, the voices of local residents to formulate their own futures will be lost. Therefore, government policy must find a way to acknowledge such voices whilst taking the best sustainable steps forward.</p><p><strong>Keywords</strong><em>:</em> livelihoods, mobility, peri-urban areas, Hue, Vietnam</p>

Land Loss with Compensation: What Are the Determinants of Income Among Households in Central Vietnam?

2021 ◽  
Vol 12 (1) ◽  
pp. 40-55
Author(s):  
Nguyen Quang Phuc ◽  
A. C. M. (Guus) van Westen ◽  
Annelies Zoomers
Keyword(s):  
Household Income ◽  
Urban Areas ◽  
Urban Expansion ◽  
Skill Training ◽  
Land Loss ◽  
Central Vietnam ◽  
Compensation Packages ◽  
Household Members ◽  
The Government ◽  
Using Data

The purpose of this study is to investigate the determinants of household income following the loss of land owing to urban expansion in central Vietnam. Using data mainly from household surveys in the peri-urban areas of Hue city, the regression model indicates that demographic factors and livelihood strategy choices have important impacts on household income; financial compensation and support packages do not appear to be strong determinants of household income after the loss of land. This implies a failure of the current compensation programmes in the process of compulsory land acquisition, because the government believes that compensation packages make important contributions to livelihood reconstruction. This study suggests that investing in education and skill training for household members affected by land loss as well as assistance in converting compensation money into an adequate livelihood should be taken into consideration.

scholarly journals Ecological variation in wealth–fertility relationships in Mongolia: the ‘central theoretical problem of sociobiology’ not a problem after all?

2014 ◽  
Vol 281 (1796) ◽  
pp. 20141733 ◽  
Author(s):  
Alexandra Alvergne ◽  
Virpi Lummaa
Keyword(s):  
Urban Areas ◽  
Market Integration ◽  
Low Fertility ◽  
Theoretical Problem ◽  
Economic Returns ◽  
Trade Offs ◽  
Mass Privatization ◽  
Using Data ◽  
Socioeconomic Success ◽  
Status Enhancement

The negative wealth–fertility relationship brought about by market integration remains a puzzle to classic evolutionary models. Evolutionary ecologists have argued that this phenomenon results from both stronger trade-offs between reproductive and socioeconomic success in the highest social classes and the comparison of groups rather than individuals. Indeed, studies in contemporary low fertility settings have typically used aggregated samples that may mask positive wealth–fertility relationships. Furthermore, while much evidence attests to trade-offs between reproductive and socioeconomic success, few studies have explicitly tested the idea that such constraints are intensified by market integration. Using data from Mongolia, a post-socialist nation that underwent mass privatization, we examine wealth–fertility relationships over time and across a rural–urban gradient. Among post-reproductive women, reproductive fitness is the lowest in urban areas, but increases with wealth in all regions. After liberalization, a demographic–economic paradox emerges in urban areas: while educational attainment negatively impacts female fertility in all regions, education uniquely provides socioeconomic benefits in urban contexts. As market integration progresses, socio-economic returns to education increase and women who limit their reproduction to pursue education get wealthier. The results support the view that selection favoured mechanisms that respond to opportunities for status enhancement rather than fertility maximization.

scholarly journals The impact of urbanization expansion on agricultural land in Ethiopia: A review

2020 ◽  
Vol 8 (4) ◽  
pp. 73-80
Author(s):  
Assefa Ayele ◽  
Kassa Tarekegn
Keyword(s):  
Urban Areas ◽  
Agricultural Land ◽  
Urban Expansion ◽  
Rural Livelihoods ◽  
Vital Role ◽  
Rapid Urbanization ◽  
Economic Resource ◽  
House Construction ◽  
Impact Of Urbanization ◽  
The Impact

AbstractIn a country like Ethiopia where the vast majority of the populations are employed in agriculture, land is an important economic resource for the development of rural livelihoods. Agricultural land in peri-urban areas is, however, transformed into built-up regions through horizontal urban expansion that has an effect on land use value. In recent years Ethiopia has been experiencing rapid urbanization, which has led to an ever-increasing demand for land in peri-urban areas for housing and other nonagricultural activities that pervades agricultural land. There is a high demand for informal and illegal peri-urban land which has been held by peri-urban farmers, and this plays a vital role in the unauthorized and sub-standard house construction on agricultural land. This urbanization has not been extensively reviewed and documented. In this review an attempt has been made to assess the impacts of rapid urbanization on agricultural activities. Urban expansion has reduced the areas available for agriculture, which has seriously impacted upon peri-urban farmers that are often left with little or no land to cultivate and which has increased their vulnerability. Housing encroachments have been observed to be uncontrolled due to a weak government response to the trend of unplanned city expansion. This has left peri-urban farmers exposed to the negative shocks of urbanization because significant urbanization-related agricultural land loss has a positive correlation with grain production decrease. Appropriate governing bodies should control urban development in order to control the illegal and informal spread of urbanization on agricultural land that threatens food production.

scholarly journals Exploring the Dynamic Spatio-Temporal Correlations between PM2.5 Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region

2021 ◽  
Vol 18 (2) ◽  
pp. 608
Author(s):  
Shen Zhao ◽  
Yong Xu
Keyword(s):  
Urban Areas ◽  
Energy Production ◽  
Urban Expansion ◽  
Transport Sector ◽  
Emission Data ◽  
Rapid Urbanization ◽  
Local Conditions ◽  
Spatio Temporal ◽  
Different Sources ◽  
Pm2.5 Emissions

Due to rapid urbanization globally more people live in urban areas and, simultaneously, more people are exposed to the threat of environmental pollution. Taking PM2.5 emission data as the intermediate link to explore the correlation between corresponding sectors behind various PM2.5 emission sources and urban expansion in the process of urbanization, and formulating effective policies, have become major issues. In this paper, based on long temporal coverage and high-quality nighttime light data seen from the top of the atmosphere and recently compiled PM2.5 emissions data from different sources (transportation, residential and commercial, industry, energy production, deforestation and wildfire, and agriculture), we built an advanced Bayesian spatio-temporal autoregressive model and a local regression model to quantitatively analyze the correlation between PM2.5 emissions from different sources and urban expansion in the Beijing-Tianjin-Hebei region. Our results suggest that the overall urban expansion in the study area maintained gradual growth from 1995 to 2014, with the fastest growth rate during 2005 to 2010; the urban expansion maintained a significant positive correlation with PM2.5 emissions from transportation, energy production, and industry; different anti-haze policies should be designated according to respective local conditions in Beijing, Tianjin, and Hebei provinces; and during the period of rapid urban expansion (2005–2010), the spatial correlations between PM2.5 emissions from different sources and urban expansion also changed, with the biggest change coming from the PM2.5 emissions from the transport sector.

scholarly journals Landsat-Based Monitoring of the Heat Effects of Urbanization Directions and Types in Hangzhou City from 2000 to 2020

2021 ◽  
Vol 13 (21) ◽  
pp. 4268
Author(s):  
Lin Chen ◽  
Bin Zhou ◽  
Weidong Man ◽  
Mingyue Liu
Keyword(s):  
Urban Areas ◽  
Single Channel ◽  
Thermal Environment ◽  
Urban Expansion ◽  
Spatiotemporal Patterns ◽  
Annual Growth Rate ◽  
Impervious Surfaces ◽  
Rapid Urbanization ◽  
Heat Effects ◽  
Urban Heat

Rapid urbanization has produced serious heat effects worldwide. However, the literature lacks a detailed study on heat effects based on the directions and types of urban expansion. In this work, a typical city with an extremely hot summer climate, Hangzhou, was selected as a case study to determine the relationships between the urban heat-effect dynamics and spatiotemporal patterns of impervious surface expansion. Based on long-term Landsat imagery, this study characterized the spatiotemporal patterns of urban expansion and normalized surface temperatures in Hangzhou City from 2000 to 2020 using object-based backdating classification and a generalized single-channel algorithm with the help of a land-use transfer matrix, expansion index, and spatial centroids. Relevant policies, industries, and traffic networks were discussed to help explain urban expansion and thermal environment changes. The results demonstrated that in 2020, the area of impervious surfaces covered 1139.29 km2. The majority of the gains were in farmland, water, and forests, and the annual growth rate was 32.12 km2/year beginning in 2000. During the expansion of impervious surfaces, the city warmed at a slower rate, and more thermal contributions came from sub-urban areas. The southeast-oriented expansion of impervious surfaces was the key reason for the spatiotemporal dynamics of the urban heat effects. The dominant urban edge expansion intensified the local heat effects. This research provides a Landsat-based methodology for better understanding the heat effects of urban expansion.

scholarly journals Measuring the Urban Particulate Matter Island Effect with Rapid Urban Expansion

2020 ◽  
Vol 17 (15) ◽  
pp. 5535
Author(s):  
Yu Cao ◽  
Xiaoqian Fang ◽  
Jiayi Wang ◽  
Guoyu Li ◽  
Yu Cao ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Urban Areas ◽  
Local Level ◽  
Urban Expansion ◽  
Rapid Expansion ◽  
Hangzhou Bay ◽  
Air Pollution Control ◽  
Rapid Urbanization ◽  
Urban Particulate Matter ◽  
Bay Area

Rapid urbanization has posed numerous negative impacts on the environment, including fine particulate matter (PM2.5) pollution. However, quantitative investigations of the PM2.5 concentration trends over an urban-rural gradient at the local level are still lacking. The urban particulate matter island (UPI) effect, representing the phenomenon that high particle concentrations in urban areas are gradually attenuated to surrounding areas, was adopted and modified in this paper to study the Hangzhou Bay area from 2000 to 2015. We found the following: (1) every urban area in the Hangzhou Bay area experienced rapid expansion, especially during 2000–2005; (2) more than half of the urban areas suffered UPI problems, and these urban areas had relatively high and stable UPI intensity (UPII) values, although the UPI footprint (UPIFP) values decreased with urban expansion; and (3) urban areas could be divided into three categories: plain areas, hilly areas and the junction of plains and hills, and the probability of the UPI effect varied significantly for different categories. This paper can compensate for the lack of research on the UPI effect at the local level and provide scientific evidence for air pollution control during urban agglomeration planning.

scholarly journals Vegetation Dynamics and Their Response to the Urbanization of the Beijing–Tianjin–Hebei Region, China

2020 ◽  
Vol 12 (20) ◽  
pp. 8550
Author(s):  
Yuyang Chang ◽  
Geli Zhang ◽  
Tianzhu Zhang ◽  
Zhen Xie ◽  
Jingxia Wang
Keyword(s):  
Vegetation Dynamics ◽  
Urban Areas ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Urban Agglomeration ◽  
Rapid Urbanization ◽  
Vegetation Growth ◽  
Metropolitan Regions ◽  
Ecological Development ◽  
Using Data

Rapid global urbanization has caused substantial changes in land cover and vegetation growth. Rapid urban growth in a short time has escalated the conflicts between economic development and ecological conservation, particularly in some metropolitan regions. However, the effects of rapid urbanization on vegetation have not been fully captured, especially accounting for the latest ecological development initiatives. In this study, we chose a typical urban agglomeration, the Beijing–Tianjin–Hebei (BTH) urban agglomeration in China, and analyzed the vegetation variation and the impacts of urbanization on the vegetation growth based on transferable methods, using data such as the Normalized Difference Vegetation Index (NDVI) and the nighttime light (NTL). The results indicate significantly enhanced vegetation growth in the BTH region, with a strikingly spatial pattern of greening in the northwest, and browning in the southeast from 2001 to 2018. Besides this, the results enclose most of the areas (72%) of built-up land in the BTH, which tended to brown in the process of rapid urban development, while 27% greened with increasing urbanization. This means that the vegetation’s response to urbanization shows apparent differences and geographic heterogeneity along the urbanization gradient at the urban agglomeration scale. Parts of the periphery of the metropolis and the central areas of developing cities may experience a browning trend; however, the core urban areas of urbanized metropolises demonstrate greening, rather than browning. Furthermore, this study provides solid evidence on the remarkable greening impacts of several ecological restoration projects which are currently underway, especially in ecologically fragile areas (e.g., the suburbs). The implications derived from the urban ecological development and the transferable methodology deployed in this paper facilitate the unfolding relationships between urbanization and social-ecological development. Our findings provide new insights into the interactions between vegetation dynamics and urbanization at the regional level.

scholarly journals USING THE SLEUTH URBAN GROWTH MODEL COUPLED WITH A GIS TO SIMULATE AND PREDICT THE FUTURE URBAN EXPANSION OF CASABLANCA REGION, MOROCCO

2019 ◽  
Vol XLII-4/W12 ◽  
pp. 139-145
Author(s):  
A. Mallouk ◽  
H. Elhadrachi ◽  
M. E. I. Malaainine ◽  
H. Rhinane
Keyword(s):  
Urban Growth ◽  
Urban Expansion ◽  
Decision Support Tool ◽  
Well Being ◽  
Primary Concern ◽  
Urban Centers ◽  
Rapid Urbanization ◽  
Support Tool ◽  
Effective Decision Support ◽  
Using Data

<p><strong>Abstract.</strong> The rapid and sometimes uncontrolled acceleration of urban growth, particularly in developing countries, places increasing pressure on environment and urban population well-being, making it a primary concern for managers. In Casablanca city, Morocco’s economic capital, the rapid urbanization was a result of population explosion, rural exodus and the emergence of new urban centers. Therefore, a system for urban growth simulation and prediction to anticipate infrastructural needs became indispensable to optimize urban planning. The main aim of this work is to study the urban extension of the Grand Casablanca region from 1984 to 2022 and to predict urban growth in 2040 using the SLEUTH cellular automaton model. The methodology consists of calibrating the model using data extracted from a time series of satellite images with a resolution of 30 m acquired between 1984 and 2018, as well as vector data relating to the urban projects planned on the horizon of 2022. The supervised classification and digitization of these images, together with a DEM of the study area, provided the input data required by the model, including Slope, Land use, Exclusion, Transportation and Hillshade. This data was introduced into the model using ArcSLEUTH, a custom extension of ArcGIS to compile the SLEUTH model. The result is synthetic maps of urban growth in the study area up to 2040, as well as the expected percentage indicators of change. The result is an effective decision-support tool for decision-makers and planners to develop more informed development strategies for the region and its people.</p>

Urbanization and Changes in Cropping Patterns at Kathmandu Valley

2007 ◽  
Vol 7 ◽  
pp. 113 ◽  
Author(s):  
Raj Man Shrestha
Keyword(s):  
Urban Areas ◽  
Cropping System ◽  
Considerable Change ◽  
Rapid Expansion ◽  
Leafy Vegetables ◽  
Kathmandu Valley ◽  
Rapid Urbanization ◽  
Average Growth ◽  
Cropping Patterns ◽  
Agriculture Land

The increase of population in Kathmandu valley is bringing a considerable change in cropping system. Rapid urbanization and introduction of new agriculture technology have encouraged the valley’s farmers to change their cropping patterns from traditional (low value crops) to new crops (high value crops). According to numerous studies made in Nepal, the change is seen considerably in winter crops than in summer crops and the land under cultivation of green leafy vegetables is increasing rapidly in the urban and semi-urban areas. An average growth of population at 3 % in the valley during the period 1951-2001 has resulted in the rapid expansion of area under urban coverage (24.6 % growth per year from 1984 - 2000) has made agriculture land of Katmandu valley to decline per year by 2.04 % (836.27 ha per year). If this trend of decline in agriculture land in Kathmandu valley continues in future too, it is expected that there will be no agriculture land left over by two and half decades in the valley. The planners should take note of this fact that if fertile land of Katmandu valley is to be preserved for agriculture necessary planning is urgently needed. <i>Nepal Journal of Science and Technology</i> Vol. 7, 2006

The Political Economy of Rural-Urban Conflict

2017 ◽  
Author(s):  
Topher L. McDougal
Keyword(s):  
Political Economy ◽  
Urban Areas ◽  
The State ◽  
Hierarchical Networks ◽  
Capital Cities ◽  
Trade Networks ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Economic Relationship ◽  
Relationship Of

In some cases of insurgency, the combat frontier is contested and erratic, as rebels target cities as their economic prey. In other cases, it is tidy and stable, seemingly representing an equilibrium in which cities are effectively protected from violent non-state actors. What factors account for these differences in the interface urban-based states and rural-based challengers? To explore this question, this book examines two regions representing two dramatically different outcomes. In West Africa (Liberia and Sierra Leone), capital cities became economic targets for rebels, who posed dire threats to the survival of the state. In Maoist India, despite an insurgent ideology aiming to overthrow the state via a strategy of progressive city capture, the combat frontier effectively firewalls cities from Maoist violence. This book argues that trade networks underpinning the economic relationship between rural and urban areas—termed “interstitial economies”—may differ dramatically in their impact on (and response to) the combat frontier. It explains rebel predatory tendencies toward cities as a function of transport networks allowing monopoly profits to be made by urban-based traders. It explains combat frontier delineation as a function of the social structure of the trade networks: hierarchical networks permit elite–elite bargains that cohere the frontier. These factors represent what might be termed respectively the “hardware” and “software” of the rural–urban economic relationship. Of interest to any student of political economy and violence, this book presents new arguments and insights about the relationships between violence and the economy, predation and production, core and periphery.

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