The paper proposes a methodology to assess water consumption in urban agriculture. Green and blue water footprints were calculated for five selected community gardens (CGs) in Rome (Italy) based on weather, crops, and yields. Then, the water requirement for all the CGs of the city, identified by means of a geodatabase, was estimated. For a cultivated area of 4.06 ha, an overall water requirement of 22,036 m3 (13,596 m3 green and 8,440 m3 blue) resulted from the assessment. Considering also the efficiency of the irrigation system, blue water consumption would reach 20,000 m3 in the worst scenario (furrow irrigation).
A methodological approach for assessing the impact of urban agriculture on water resources: a case study for community gardens in Rome (Italy) / Dalla Marta, A.; Baldi, A.; Lenzi, A.; Lupia, F.; Pulighe, G.; Santini, E.; Orlandini, S.; Altobelli, F.. - In: AGROECOLOGY AND SUSTAINABLE FOOD SYSTEMS. - ISSN 2168-3565. - STAMPA. - 43:(2019), pp. 228-240. [10.1080/21683565.2018.1537323]
A methodological approach for assessing the impact of urban agriculture on water resources: a case study for community gardens in Rome (Italy)
Dalla Marta, A.;Baldi, A.;Lenzi, A.;Orlandini, S.;
2019
Abstract
The paper proposes a methodology to assess water consumption in urban agriculture. Green and blue water footprints were calculated for five selected community gardens (CGs) in Rome (Italy) based on weather, crops, and yields. Then, the water requirement for all the CGs of the city, identified by means of a geodatabase, was estimated. For a cultivated area of 4.06 ha, an overall water requirement of 22,036 m3 (13,596 m3 green and 8,440 m3 blue) resulted from the assessment. Considering also the efficiency of the irrigation system, blue water consumption would reach 20,000 m3 in the worst scenario (furrow irrigation).
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