How greenhouse horticulture in arid regions can contribute to climate-resilient and sustainable food security

A potential change in climate and temperature could strongly affect weather-related crop losses. Using wastelands to grow crops in controlled greenhouse environments could improve global food security and preserve ecosystems. However, the impact of climate change on additional energy and water requirements of greenhousehorticulture food production is still unknown. Using a greenhouse simulator for four locations (The Netherlands, Spain, Saudi Arabia and Namibia), we show that a rise in outdoor temperatures can be counterbalanced with a more intensive water-based cooling. Between 6.9% and 17.9%, more water is required in the worst-case scenario in the year 2100, while the yield quantity decreases by 3%-6% due to slightly deteriorating growth conditions within the greenhouse. Since cooling systems consume up to 90% of the total water use in desert greenhouses, saltwater cooling could play an essential role in increasing the efficiency and sustainability of greenhouse horticulture systems in arid regions. In this study, we investigate the economic and technical feasibility of such greenhouse systems on a larger scale and show the massive potential of these systems. The developed scenarios demonstrate considerable climate resilience, enabling the cultivation of fresh vegetables in arid and infertile regions both presently and in the future.

LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Livsmedelsvetenskap hsv//swe
AGRICULTURAL SCIENCES Agriculture, Forestry and Fisheries Food Science hsv//eng
Climate change
Aridification
Horticulture
Dryland farming
Desert farming
Agriculture
Malnutrition
Food shortage
Hydroponics
Aquaponics
Systems modelling

Koerner, Oliver (författare)
Keesman, Karel J. (författare)
Tester, Mark A. (författare)
Lefers, Ryan (författare)
Fleskens, Luuk (författare)
Joyce, AlyssaGothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences(Swepub:gu)xjoyal (författare)
van Os, Erik (författare)
Gross, Amit (författare)
Leemans, Rik (författare)
Göteborgs universitetInstitutionen för marina vetenskaper (creator_code:org_t)

Ingår i:GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT382211-9124

Av författaren/redakt...: Goddek, Simon; Koerner, Oliver; Keesman, Karel J ...; Tester, Mark A.; Lefers, Ryan; Fleskens, Luuk; visa fler...; Joyce, Alyssa; van Os, Erik; Gross, Amit; Leemans, Rik; visa färre...

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LANTBRUKSVETENSKAPER: LANTBRUKSVETENSK ...; och Lantbruksvetensk ...; och Livsmedelsvetens ...

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