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dc.contributor.author Tapia, NF
dc.contributor.author Rojas, C
dc.contributor.author Bonilla, CA
dc.contributor.author Vargas, IT
dc.date.accessioned 2024-01-17T15:53:55Z
dc.date.available 2024-01-17T15:53:55Z
dc.date.issued 2018
dc.identifier.uri https://repositorio.uoh.cl/handle/611/277
dc.description.abstract Green roofs have many benefits, but in countries with semiarid climates the amount of water needed for irrigation is a limiting factor for their maintenance. The use of drought-tolerant plants such as Sedum species, reduces the water requirements in the dry season, but, even so, in semiarid environments these can reach up to 60 L m(-2) per day. Continuous substrate/soil water content monitoring would facilitate the efficient use of this critical resource. In this context, the use of plant microbial fuel cells (PMFCs) emerges as a suitable and more sustainable alternative for monitoring water content in green roofs in semiarid climates. In this study, bench and pilot-scale experiments using seven Sedum species showed a positive relationship between current generation and water content in the substrate. PMFC reactors with higher water content (around 27% vs. 17.5% v/v) showed larger power density (114.6 and 82.3 mu W m(-2) vs. 32.5 mu W m(-2)). Moreover, a correlation coefficient of 0.95 (+/- 0.01) between current density and water content was observed. The results of this research represent the first effort of using PMFCs as low-cost water content biosensors for green roofs.
dc.description.sponsorship FONDECYT under the Centro de Desarrollo Urbano Sustentable (CEDEUS)
dc.relation.uri http://dx.doi.org/10.3390/s18010071
dc.subject biosensor
dc.subject green roof
dc.subject microbial fuel cells
dc.subject Sedum
dc.subject soil water content
dc.title A New Method for Sensing Soil Water Content in Green Roofs Using Plant Microbial Fuel Cells
dc.type Artículo
uoh.revista SENSORS
dc.identifier.doi 10.3390/s18010071
dc.citation.volume 18
dc.citation.issue 1
dc.identifier.orcid Rojas, Claudia/0000-0001-7727-2862
dc.identifier.orcid Vargas, Ignacio T/0000-0001-5974-2795
dc.identifier.orcid Rojas Gonzales, Claudia/0000-0002-1559-2243
uoh.indizacion Web of Science

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