The notion and assessment of ecosystem services (ES) values is becoming an established part of the discourse regarding urban green space performance. Yet, underlying factors enabling ES values are still poorly understood. We assume the production of ES value crucial for environmental stewardship in cities, and aimed in this study to uncover their key enabling factors. This study has been developed on a broad data base including a survey (n=201), interviews (n=46), field observation and remote sensing from 27 urban gardens in Barcelona, Spain, including municipal 'allotment gardens' and 'civic gardens' emerging from bottom-up Important note: This is the author's post-print version of a research paper that was accepted for publication in the journal Landscape and Urban Planning (Elsevier). Therefore, it underwent full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the published version:
Urban agriculture is key when food security is threatened, as in the cases of wars, which disrupt food production, conservation, transportation, and distribution systems. During the two World Wars of the 20th century, governments mobilized civilians to participate in food production and to increase morale by contributing to the war effort from the rearguard. Unlike these cases, food production in Spanish cities during the civil war of 1936-1939 has received little attention. Using documentation from different public and private archives, press clips, and personal testimonies, this article explores the socio-environmental history of agricultural production in Barcelona during the Spanish Civil War. On the one hand, we analysed the collectivization of agriculture in the municipality of Barcelona, carried out by the Colectividad Agrícola de Barcelona y su Radio (CNT), involving at its peak some 3,500 workers managing 850 hectares of crops. On the other hand, this Collective coexisted with an expansion of home gardens for self-consumption in the city as food supplies became scarcer. Both initiatives contributed to maintaining a precarious food supply until the occupation of the city by Franco's troops in January 1939.
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