scholarly journals The role of urban agriculture for a resilient city

2020 ◽  
Vol 12 (2) ◽  
pp. 148-154
Author(s):  
Hoang Tien LE ◽  
Thi Huong Ly VO ◽  
Ngoc Han CHAU
Keyword(s):  
Urban Agriculture ◽  
Land Use Planning ◽  
Urban Areas ◽  
Agricultural Land ◽  
Green Roofs ◽  
Effective Measure ◽  
Vertical Farming ◽  
Sufficient Food ◽  
Global Population

Humans are simultaneously facing challenges as climate change, epidemics and scarcity of food and water. It is estimated that by 2021 over 690 million of people will face hunger; by 2050 the global population will increase up to 10 billion with 68% of the population living in urban areas. By providing 30% of self-sufficient food in 2030, urban agriculture will be a practical concept to face these challenges. The work studies the role of agricultural land as a critical part for a resilient city. Parameters related to food production are also explored. As study case, this work aims to investigate the current food security of the Ho Chi Minh city (HCMC), offering productive green solutions at different scales from land-use planning, urban design to green roofs. For a production of 6.7 kg/day of vegetables a day, the costs of are approximately $10,000 for nearly 5.6 square meters of land; this points out A-Go-Gro technology as an effective measure for vertical farming. For example, 0.18 ha of green space can produce 2 tons of vegetables per day in the Lake View settlement (district 2 in HCMC). Moreover, due to green roofs, stormwater volumes directed into the sewer system are decreased by 65% and the penetration of electromagnetic radiation is reduced by 99.4%. Loài người đang đồng thời đối mặt với những thách thức như biến đổi khí hậu, dịch bệnh, khan hiếm thực phẩm và nước. Ước tính đến năm 2021 có hơn 690 triệu người đói và đến năm 2050 dân số toàn cầu tăng lên gần 10 tỷ người, với 68% sống ở khu vực thành thị. Được sử dụng để tự cung tự cấp 30% lương thực vào năm 2030, nông nghiệp đô thị là một khái niệm hiệu quả cho những thách thức. Bài báo là nghiên cứu đất nông nghiệp như một phần quan trọng cho một thành phố có khả năng phục hồi. Các thông số liên quan đến sản xuất lương thực được nghiên cứu. Bài báo cũng tìm hiểu an ninh lương thực của thành phố Hồ Chí Minh hiện nay. Hơn nữa, bài báo đưa ra các giải pháp phủ xanh hiệu quả trên các quy mô khác từ quy hoạch sử dụng đất, thiết kế đô thị đến mái nhà xanh tại các hộ gia đình. Với chi phí 10.000 USD và gần 5,6 mét vuông đất trồng 6,7 kg rau mỗi ngày, công nghệ A-Go-Gro là một biện pháp hữu hiệu cho canh tác theo chiều dọc. Như vậy 0,18 ha không gian xanh có thể sản xuất 2 tấn rau mỗi ngày tại khu dân cư Lake View ở quận 2. Hơn nữa, bằng cách làm mái nhà xanh, nước mưa giảm đến 65% vào hệ thống cống và sự xâm nhập bức xạ điện từ giảm 99,4%.

FACTORS AFFECTING URBAN AGRICULTURE DEVELOPMENT IN THAI NGUYEN PROVINCE, VIET NAM

2021 ◽  
Vol 9 (1) ◽  
pp. 222-233
Author(s):  
Vu Bach Diep ◽  
Dinh Hong Linh ◽  
Bui Thi Minh Hang
Keyword(s):  
Urban Agriculture ◽  
Urban Areas ◽  
Industrial Development ◽  
Agricultural Development ◽  
Agricultural Land ◽  
Primary Data ◽  
Factors Affecting ◽  
Infrastructure Policy ◽  
Process Of Urbanization ◽  
Agriculture Development

The process of urbanization is taking place fast and vigorously in large urban and peri-urban areas in Vietnam. According to national forecasts, the rate of urbanization nationwide will reach 39.3% by 2020 and 50-55% by 2035. Thai Nguyen is a province in the midland and mountainous region. The province is located at the northern gateway and bordered with Hanoi capital. In recent years, the agricultural land area of Thai Nguyen province has narrowed due to the urban-industrial development. Urban agriculture development is an inevitable direction, creating safe and high quality food products, protecting the ecological environment, and increasing people's income. Thai Nguyen is one of the provinces promoting sustainable urban agricultural development. Secondary and primary data sources are analyzed and synthesized by descriptive statistical methods. The article will analyze five groups of factors affecting urban agricultural development in Thai Nguyen province in the period 2015-2018, including Socio-economic; Natural conditions and infrastructure; Policy factors; Planning factors; Links and integration.

scholarly journals Urban agriculture as a keystone contribution towards securing sustainable and healthy development for cities in the future

2019 ◽  
Vol 2 (1) ◽  
pp. 1-27 ◽  
Author(s):  
S. L. G. Skar ◽  
R. Pineda-Martos ◽  
A. Timpe ◽  
B. Pölling ◽  
K. Bohn ◽  
...  
Keyword(s):  
Urban Agriculture ◽  
Green Infrastructure ◽  
Urban Areas ◽  
Food Systems ◽  
Community Gardens ◽  
Healthy Development ◽  
Vertical Farming ◽  
Integrated Agriculture ◽  
Water Waste

Abstract Research and practice during the last 20 years has shown that urban agriculture can contribute to minimising the effects of climate change by, at the same time, improving quality of life in urban areas. In order to do so most effectively, land use and spatial planning are crucial so as to obtain and maintain a supportive green infrastructure and to secure citizens' healthy living conditions. As people today trend more towards living in green and sustainable city centres that can offer fresh and locally produced food, cities become again places for growing food. The scope of urban agriculture thereby is to establish food production sites within the city's sphere; for example, through building-integrated agriculture including concepts such as aquaponics, indoor agriculture, vertical farming, rooftop production, edible walls, as well as through urban farms, edible landscapes, school gardens and community gardens. Embedded in changing urban food systems, the contribution of urban agriculture to creating sustainable and climate-friendly cities is pivotal as it has the capacity to integrate other resource streams such as water, waste and energy. This article describes some of the current aspects of the circular city debate where urban agriculture is pushing forward the development of material and resource cycling in cities.

scholarly journals Green Infrastructure Planning in Metropolitan Regions to Improve the Connectivity of Agricultural Landscapes and Food Security

Land ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 414 ◽  
Author(s):  
Carolina Yacamán Ochoa ◽  
Daniel Ferrer Jiménez ◽  
Rafael Mata Olmo
Keyword(s):  
Urban Agriculture ◽  
Land Use Planning ◽  
Green Infrastructure ◽  
Landscape Connectivity ◽  
Agricultural Landscapes ◽  
Positive Contribution ◽  
Urban Resilience ◽  
Open Spaces ◽  
Metropolitan Regions

Green infrastructure (GI), as a concept and as a tool for environmental land-use planning at various scales, has burst onto the academic, political, and policy-making scenes in the last two decades. This tool, associated with strategic planning, offers integrated solutions for improving the ecological connectivity and urban resilience of open spaces, especially those affected by processes of urban sprawl, the abandonment of agriculture, and the territorial fragmentation of habitats and traditional agricultural landscapes. In spite of the advantages of GI, its design and implementation face a range of challenges and limitations. In this context, this paper has two objectives: Firstly, to address a critical review of recent literature on the subject, which, among other things, highlights the lack of references to the role of peri-urban agriculture in GI planning, and the positive contribution made by peri-urban agriculture to the local food supply and other regulatory and cultural services. Secondly, to propose a methodology to contribute to integrating practical GI planning in metropolitan regions to maximize the activation of traditional agricultural landscapes and the improvement of landscape connectivity in metropolitan regions for the reconnection of rural-urban relationships.

Study of diffuse source pollution management for land use and drainage system planning

2001 ◽  
Vol 44 (7) ◽  
pp. 203-208 ◽  
Author(s):  
K. Yamada ◽  
T. Funaki ◽  
S. Honda ◽  
M. Sugihara
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Land Use Planning ◽  
Urban Areas ◽  
Drainage System ◽  
Pollutant Removal ◽  
Storm Events ◽  
Road Surfaces ◽  
Using Data

This study aims to clarify the mass balance of pollutants during both dry periods and storm events and to discuss the effects of some strategies such as pollutant removal, land use planning and new drainage systems by simulation. Three subjects are discussed in this paper. First, the amount of pollutants entering Lake Biwa from an urban area have been roughly estimated by using data collected by the local government. Second, many additional samples were collected from road surfaces, house roofs and parking lots to consider the role of land use in pollutant runoff. Third, some ongoing BMP projects in an urban area are introduced. As a result, some ideas on how to solve the problem of diffuse pollution in urban areas have been obtained.

Modelling of green roofs' hydrologic performance using EPA's SWMM

2013 ◽  
Vol 68 (1) ◽  
pp. 36-42 ◽  
Author(s):  
E. Burszta-Adamiak ◽  
M. Mrowiec
Keyword(s):  
Urban Areas ◽  
Low Impact Development ◽  
Green Roofs ◽  
Storm Water ◽  
Storm Water Management Model ◽  
Measured Flow ◽  
Rain Events ◽  
Few Data

Green roofs significantly affect the increase in water retention and thus the management of rain water in urban areas. In Poland, as in many other European countries, excess rainwater resulting from snowmelt and heavy rainfall contributes to the development of local flooding in urban areas. Opportunities to reduce surface runoff and reduce flood risks are among the reasons why green roofs are more likely to be used also in this country. However, there are relatively few data on their in situ performance. In this study the storm water performance was simulated for the green roofs experimental plots using the Storm Water Management Model (SWMM) with Low Impact Development (LID) Controls module (version 5.0.022). The model consists of many parameters for a particular layer of green roofs but simulation results were unsatisfactory considering the hydrologic response of the green roofs. For the majority of the tested rain events, the Nash coefficient had negative values. It indicates a weak fit between observed and measured flow-rates. Therefore complexity of the LID module does not affect the increase of its accuracy. Further research at a technical scale is needed to determine the role of the green roof slope, vegetation cover and drying process during the inter-event periods.

Building Reconstruction After Large-Scale Disasters A Case Study of Ishinomaki City After the Great East Japan Earthquake

2016 ◽  
Vol 11 (sp) ◽  
pp. 780-788 ◽  
Author(s):  
Michio Ubaura ◽  
◽  
Junpei Nieda ◽  
Masashi Miyakawa ◽  
Keyword(s):  
Land Use Planning ◽  
Urban Areas ◽  
Large Scale ◽  
Agricultural Land ◽  
Recovery Process ◽  
Great East Japan Earthquake ◽  
Planning System ◽  
Compact City ◽  
Building Reconstruction

In large-scale disasters and the subsequent recovery process, land usage and urban spatial forms change. It is therefore important to use this process as an opportunity to create a more sustainable spatial structure. This study considers the urban spatial transformations that took place after the Great East Japan Earthquake, their causes, and accompanying issues by investigating building construction in the recovery process. The authors discovered that individual rebuilding is primarily concentrated in vacant lots within the city’s existing urbanized areas. This is likely due to the spatial impact of the urban planning and agricultural land use planning system, the area division of urbanization promotion areas, and the urbanization restricted areas, all of which were in place prior to the disaster and which have guided development. On the other hand, there are areas severely damaged by tsunami in which there has been little reconstruction of housing that was completely destroyed. The authors concluded that building reconstruction in Ishinomaki City resulted in both the formation of a high-density compact city and also very low-density urban areas.

scholarly journals Urban Agriculture: Search for Agricultural Practice in Urbanized Rural Areas

2017 ◽  
Vol 5 (12) ◽  
pp. 1461
Author(s):  
Celile Özçiçek Dölekoğlu ◽  
Sema Gün
Keyword(s):  
Food Security ◽  
Urban Agriculture ◽  
Rural Areas ◽  
Urban Areas ◽  
Agricultural Land ◽  
Environmental Benefits ◽  
Agricultural Practice ◽  
Rapid Urbanization ◽  
The World ◽  
The One

Rapid urbanization in developing countries involves unplanned migration, unemployment and poverty. The steady shrinking of rural areas and the use of agricultural land for other purposes are progressively increasing the pressure on natural resources. This development on the one hand increases the risk to food security, and on the other triggers climate change. The rural population who migrate to the cities or who are absorbed into urban areas continue their agricultural activities in the urban in order to provide themselves with an income or to maintain their food security. In the big cities of the developed world, contact with nature is kept by means of hobby gardens, recreational areas and urban and suburban plant and animal farming, and creative ideas such as roof gardens can be found. This development, known as urban agriculture, is practiced by 800 million people in the world. Urban agriculture has many economic, social and environmental benefits, but it may also have risks and adverse effects. In this study, the developments in this area in Turkey and the world are presented, and all aspects of its effects and outcomes are discussed.

scholarly journals Initiatives of Urban Agriculture in Semarang City: Pathways for Sustainability

2019 ◽  
Vol 280 ◽  
pp. 03005
Author(s):  
Zahra Nur Hasanah ◽  
Wiwandari Handayani ◽  
Nana Kariada Tri Martuti
Keyword(s):  
Urban Agriculture ◽  
Urban Areas ◽  
Agricultural Land ◽  
Social Innovation ◽  
City Government ◽  
Family Welfare ◽  
Analysis Model ◽  
The People ◽  
The Government ◽  
Adequate Provision

Urban agriculture (UA) has become a popular concept to bridge growth of urban areas with adequate provision of agricultural land, cheap and healthy food. UA in Semarang began to be encouraged by Semarang City Government since 2015 and involves family welfare groups for its implementation. Most of the people involved in UA activities are often based on hobbies whereas some of them start reaching out to businesses. This study aims to elaborate the initiatives from government, community/individual, university, and corporation to promote UA in Semarang. The methods were conducted by using interactive analysis model which is presented by Miles, Huberman, and Saldaña. By elaborate the initiatives of urban agriculture in Semarang, the study shows that initiatives from communities/individual are more promising to promote sustainability rather than initiatives which comes from the government. The major difference among initiatives is due to community eagerness to do UA activities if it comes from their interests and desires, whereas initiatives from the government are more likely to encourage community participation and as part of social innovation.

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