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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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