Urban sprawl, food security and agricultural systems in developing countries: A systematic review of the literature

Hatab, Assem Abu; Cavinato, Maria Eduarda Rigo; Lindemer, August; Lagerkvist, Carl Johan

doi:10.1016/j.cities.2019.06.001

Cited by 177 publications

(74 citation statements)

References 98 publications

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“…Food security has been defined as a situation when food is physically and economically available for all people to meet their dietary needs for a healthy life [1]. Nowadays, food security has become a global issue as two-thirds of the population will live in cities in the near future [2][3][4][5][6], on the other hand, farming business has to face declining farmland conversion [7][8][9][10], a loss of farmland ownership [11][12][13][14], a lack in rural development [15,16], and unstable farming productivity due to climate changes [17][18][19][20]. Therefore, the compliance of food supply and demand should be carefully monitored to avoid declining nutrition and the poor health of humankind.…”

Section: Introductionmentioning

confidence: 99%

Spatial Analysis of Socio-Economic Driving Factors of Food Expenditure Variation between Provinces in Indonesia

2020

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Food security has become one of the global challenges; therefore, monitoring food consumption is required. As food consumption is a resultant of food availability at an affordable price, food expenditure actually is a key indicator to assess food security policy. Particularly, the link of food expenditure with socio-economic factors based on the perspective of spatial connectivity should be understood as nowadays food supply and demand between regions are increasingly connected. This study aims to define socio-economic driving factors of food expenditure that considering spatial connectivity between provinces in Indonesia. Data of household food expenditure and socio-economic factors by province including urbanization level, economic growth, gross domestic regional product (GDRP) per capita, poverty severity index, and unemployment rate were used. The preliminary test on the spatial correlation of food expenditure showed a significant result; thus, a spatial regression approach was employed. The results showed that declining food expenditure did not simply indicate increasing prosperity. Larger income disparity among the poor has become crucial to detect lower food expenditure caused by a lack of income. In addition, the increasing unemployment rate was followed by increasing food expenditure. Despite economic growth, increasing GDRP per capita and urbanization contributing to declining food expenditure, both poverty and unemployment are the main issues that threaten household's ability to afford food. Furthermore, the effect of food expenditure in the neighboring region is also significant, but it shows a contradictory relationship as food expenditure in a region is decreasing when food expenditure in its neighbors is increasing, and vice versa. Therefore, reducing disparities in economic growth, GDRP per capita, urbanization, poverty, and unemployment rate between provinces is also crucial to support more equal food expenditure as well as to achieve the second goal of SDG's (Sustainable Development Goals) in improving food security.

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Section: Introductionmentioning

confidence: 99%

Spatial Analysis of Socio-Economic Driving Factors of Food Expenditure Variation between Provinces in Indonesia

2020

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“…At the same time, however, the availability of land-the most important resource required for UA in Africa-could depend on proximity to peri-urban and rural areas. Yet, as observed by Abu Hatab et al (2019b), the available UA literature has neglected interactions between urban and rural areas in urban food systems. For example, the UA literature has not considered the differential FS outcomes of food production by urbanites beyond urban and peri-urban boundaries.…”

Section: Introductionmentioning

confidence: 99%

The geography of agriculture participation and food security in a small and a medium-sized city in Ghana

2020

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The debate about the contribution of urban agriculture to urban household food security has not considered the possible differential effects by geography of production activities, focusing either on urban household's participation in agriculture irrespective of where the activity takes place, or restricting participation to production within urban and peri-urban areas, or more narrowly, production within build-up urban spaces. Using a sample of 2004 households in a small and a medium-sized city in Ghana, this article contributes by disentangling urban household's participation in agriculture by geography of production activities and the implications for the food security of urban households. We find no evidence from our sample that participation in agriculture in general matters for the food security of urban households. However, urbanites who produced food in both urban and rural areas had better food security in the medium-sized city.

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“…More than half of the world's population is now living in cities and the share of urban population is rising further (United Nations Department of Economic and Social Affairs Population Division [UN DESA], 2018). Combined with increasing population globally, urbanization will likely induce an increase in built-up land, with expected impacts on biodiversity (McDonald et al, 2020), the urban climate (Chapman et al, 2017), food security (Abu Hatab et al, 2019) or carbon pools, for instance due to forest loss for land clearing (Seto et al, 2012). Thus, it is imperative to discuss how we want to "grow the world's cities" Fuller, 2013, p. 1161).…”

Section: Introductionmentioning

confidence: 99%

Synergies or Trade-Offs? Optimizing a Virtual Urban Region to Foster Plant Species Richness, Climate Regulation, and Compactness Under Varying Landscape Composition

Schwarz

Hoffmann

Knapp

et al. 2020

Front. Environ. Sci.

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Ongoing urbanization forces us to reflect on how we can cater for multiple targets when building cities. In this study, we investigate whether compactness as a common urban development strategy, climate regulation as an example for an ecosystem service, and vascular plant species richness as a measure of biodiversity form a synergistic relationship or whether trade-offs exist. We use a genetic algorithm to optimize the spatial allocation of three types of land cover blocks in a stylized urban region. These blocks are categorized as high-, low-density, or park blocks, depending on the proportion of green and built-up cells within each block. We systematically vary landscape composition at the block level, but keep city size constant. Our most important finding is that the relationships of target functions can shift between tradeoff and synergy, and this is shaped by landscape composition. For example, we found a trade-off between species richness and urban compactness in landscapes with large proportions of high-density areas and parks, while they have a synergistic relationship in low-density landscapes. Such dependencies of trade-offs and synergies on landscape composition need to be explored further, which may help address the wickedness of urban planning problems.

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Urban sprawl, food security and agricultural systems in developing countries: A systematic review of the literature

Cited by 177 publications

References 98 publications

Spatial Analysis of Socio-Economic Driving Factors of Food Expenditure Variation between Provinces in Indonesia

Spatial Analysis of Socio-Economic Driving Factors of Food Expenditure Variation between Provinces in Indonesia

The geography of agriculture participation and food security in a small and a medium-sized city in Ghana

Synergies or Trade-Offs? Optimizing a Virtual Urban Region to Foster Plant Species Richness, Climate Regulation, and Compactness Under Varying Landscape Composition

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