Creating Urban Agricultural Systems

Proksch, Gundula

doi:10.4324/9781315796772

Cited by 16 publications

(20 citation statements)

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“…Appropriate application fields for professional aquaponics of the ModelCase size are urban and peri‐urban areas with their limited space availability and competition of different usage types. Aquaponics has its place already within urban agriculture but professional facilities are rather rare (Proksch, 2016). When scaling up the number of aquaponics from the contemporary very few to a significant number, the economic viability of medium size aquaponic facilities would get under pressure.…”

Section: Discussionmentioning

confidence: 99%

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Profitability of multi‐loop aquaponics: Year‐long production data, economic scenarios and a comprehensive model case

Baganz

Staaks

et al. 2020

Aquac Res

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This case study examined the productivity and economic performance of a double recirculation aquaponic system in Germany with a total interior area of about 540 m2. Calculations were carried out as an ex post analysis based on one‐year production data. The initial situation was not profitable; therefore, two scenarios were developed, which envisaged a significantly improved productivity of the fish as well as of the plant unit and a more than threefold enlargement of the greenhouse to make maximum use of the fish effluent. An ex ante analysis was performed and showed that the second scenario was profitable with a payback period of about 12 years. On the basis of this scenario, a simple but comprehensive model case with the complete set of economic key indicators showed that aquaponics is feasible if it exploits its potential, regardless of the high initial investment costs. The model case would cover an overall space of about 2,000 m2, which is suitable for professional aquaponics in urban and peri‐urban areas with their limited space availability. Furthermore, multi‐loop aquaponics with its inherent circles fits into the circular city concept and implements resource‐efficient and sustainable food production into the urban fabric, which is important with increasing urbanization.

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Section: Discussionmentioning

confidence: 99%

“…Aquaponics has its place already within urban agriculture but professional facilities are rather rare (Proksch, 2016). When scaling up the number of aquaponics from the contemporary very few to a significant number, the economic viability of medium size aquaponic facilities would get under pressure.…”

Section: Urban Applicationmentioning

confidence: 99%

Profitability of multi‐loop aquaponics: Year‐long production data, economic scenarios and a comprehensive model case

Baganz

Staaks

et al. 2020

Aquac Res

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“…Over the following four years, Lufa Farms focused on developing hydroponic-based irrigation, solar-powered cultivation, pest control and management systems, and software based on these technologies for ecofriendly greenhouse operations. Presently, in collaboration with McGill University, Lufa Farms continues its research aimed at creating an optimal growth environment for each type of crop, considering the changing environments and conditions (Proksch, 2017). Their first greenhouse, 3,000 m 2 in size, was installed in their office building in 2009.…”

Section: Operation Casesmentioning

confidence: 99%

Identification of Factors for Active Use of Rooftop Greenhouses in Korea: Based on Analysis of Foreign Exemplary Cases

Min,

Ahn,

Lee

2023

J. People Plants Environ

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Background and objective: There are a growing international consensus regarding the importance of achieving carbon neutrality and ensuring food security, particularly because of the "global boiling." Rooftop greenhouses (RTGs), which reduce carbon emissions from buildings and facilitate urban agriculture, have attracted the attention of the international community as a new form of urban agriculture. Despite considerable interest in RTGs in Korea, their implementation faces limitations owing to a lack of relevant legal bases and policies.Methods: We aimed to investigate exemplary cases to identify the essential factors for greenhouse operations and present these factors and the necessary direction for the active use of RTGs in Korea. A literature review was conducted using RTG and integrated RTG (i-RTG)-related scientific papers, books, news articles, brochures, official websites, and local government guidelines from the United States (US) and Canada where RTGs are actively used.Results: We identified the factors required for the stable operation of RTGs in Korea: long-term support and cooperation from building owners, initial operating capital, differentiated distribution strategies, and a review of relevant laws and regulations. The latter has emerged as an important factor in identifying the legal and policy limitations associated with the operation and management of RTGs in advance. Furthermore, we discuss the need and direction for creating guidelines for RTGs to introduce and review related content. While RTGs are gaining global attention as a new form of urban agriculture, Korea lacks the relevant legal and policy bases.Conclusion: There is a persistent need for guidelines outlining each step in the active use of RTGs at the local government level. In addition, continued discussions among the relevant experts are essential. Establishing legal and policy bases for RTGs should promote their active use, ultimately contributing to achieving carbon neutrality and promoting urban agriculture.

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“…Green photons penetrate deeper into the leaf, powering carbon fixation in the deeper leaf layers, the plant pigment (carotenoid) β-carotene, which is an accessory pigment in the photosynthesis process. The rate of photosynthesis is an accumulation of the absorption processes of the three pigments chlorophyll a and b, and β-carotene. , Figure illustrates the absorption profile of various pigments and the overall photosynthetic action spectrum–the “McCree curve” …”

Section: Lightmentioning

confidence: 99%

“…The rate of photosynthesis is an accumulation of the absorption processes of the three pigments chlorophyll a and b, and β-carotene. 8,9 Figure 2 illustrates the absorption profile of various pigments and the overall photosynthetic action spectrum−the "McCree curve". 10 2.2.…”

Section: Lightmentioning

confidence: 99%

Shaping and Tuning Lighting Conditions in Controlled Environment Agriculture: A Review

Neo

Ong

Lee

et al. 2022

ACS Agric. Sci. Technol.

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Light is one of the most important ingredients for healthy plant growth. It is also responsible for triggering a number of plant physiological responses. For centuries, humans have relied on sunlight and good climate for ideal crop growth. As such, extensive research has been carried out to study how to mimic sunlight or even better. Armed with modern technology, farmers can now gain greater control over light management in controlled environment agriculture (CEA). Growing plants in CEA requires delivering the required photons to the plant via artificial means: by redirecting sunlight indoors, by employing artificial lights, or by using a hybrid lighting system. Using artificial lights, the required energy for photosynthesis can be provided regardless of sunlight availability. This Review describes and assesses various artificial grow light technologies, solar spectral shaping and redirection, and hybrid lighting technologies to generate high and consistent crop yield in CEA. In addition, this Review also captures the recent advances in the use of color conversion films in manipulating light spectrum to cater to the growth of plants.

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Creating Urban Agricultural Systems

Cited by 16 publications

References 0 publications

Profitability of multi‐loop aquaponics: Year‐long production data, economic scenarios and a comprehensive model case

Profitability of multi‐loop aquaponics: Year‐long production data, economic scenarios and a comprehensive model case

Identification of Factors for Active Use of Rooftop Greenhouses in Korea: Based on Analysis of Foreign Exemplary Cases

Shaping and Tuning Lighting Conditions in Controlled Environment Agriculture: A Review

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