A Global Geospatial Ecosystem Services Estimate of Urban Agriculture

dc.contributor.author Clinton, Nicholas
dc.contributor.author Stuhlmacher, Michelle
dc.contributor.author Miles, Albie
dc.contributor.author Aragon, Nazli Uludere
dc.contributor.author Wagner, Melissa
dc.contributor.author Georgescu, Matei
dc.contributor.author Herwig, Chris
dc.contributor.author Gong, Peng
dc.date.accessioned 2018-02-13T18:09:31Z
dc.date.available 2018-02-13T18:09:31Z
dc.date.issued 2018-01-10
dc.description.abstract Though urban agriculture (UA), defined here as growing of crops in cities, is increasing in popularity and importance globally, little is known about the aggregate benefits of such natural capital in built-up areas. Here, we introduce a quantitative framework to assess global aggregate ecosystem services from existing vegetation in cities and an intensive UA adoption scenario based on data-driven estimates of urban morphology and vacant land. We analyzed global population, urban, meteorological, terrain, and Food and Agriculture Organization (FAO) datasets in Google Earth Engine to derive global scale estimates, aggregated by country, of services provided by UA. We estimate the value of four ecosystem services provided by existing vegetation in urban areas to be on the order of $33 billion annually. We project potential annual food production of 100–180 million tonnes, energy savings ranging from 14 to 15 billion kilowatt hours, nitrogen sequestration between 100,000 and 170,000 tonnes, and avoided storm water runoff between 45 and 57 billion cubic meters annually. In addition, we estimate that food production, nitrogen fixation, energy savings, pollination, climate regulation, soil formation and biological control of pests could be worth as much as $80–160 billion annually in a scenario of intense UA implementation. Our results demonstrate significant country-to-country variability in UA-derived ecosystem services and reduction of food insecurity. These estimates represent the first effort to consistently quantify these incentives globally, and highlight the relative spatial importance of built environments to act as change agents that alleviate mounting concerns associated with global environmental change and unsustainable development.
dc.format.extent 21 pages
dc.identifier.citation Clinton, N., Stuhlmacher, M., Miles, A., Uludere, N., Wagner, M., Georgescu, M., Herwig, C., & Gong, P. (2018). A Global Geospatial Ecosystem Services Estimate of Urban Agriculture, Earth’s Future, 6. https://doi.org/10.1002/2017EF000536
dc.identifier.doi 10.1002/2017EF000536
dc.identifier.uri http://hdl.handle.net/10790/3414
dc.language.iso en-US
dc.publisher AGU Publications
dc.relation.uri https://doi.org/10.1002/2017EF000536
dc.rights License: CC BY-NC-ND 4.0
dc.subject.lcsh Urban agriculture
dc.subject.lcsh Food security
dc.title A Global Geospatial Ecosystem Services Estimate of Urban Agriculture
dc.type Article
dc.type.dcmi Text
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