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Modelling Runoff and Sediment Loads in a Developing Coastal Watershed of the US-Mexico Border
dc.contributor.author | Gudino-Elizondo, Napoleon | |
dc.contributor.author | Biggs, Trent W. | |
dc.contributor.author | Bingner, Ronald L. | |
dc.contributor.author | Langendoen, Eddy J. | |
dc.contributor.author | Kretzschmar, Thomas | |
dc.contributor.author | Taguas Ruiz, Encarnación | |
dc.contributor.author | Taniguchi-Quan, Kristine T. | |
dc.contributor.author | Liden, Douglas | |
dc.contributor.author | Yuan, Yongping | |
dc.date.accessioned | 2019-05-16T11:52:04Z | |
dc.date.available | 2019-05-16T11:52:04Z | |
dc.date.issued | 2019 | |
dc.identifier.uri | http://hdl.handle.net/10396/18578 | |
dc.description.abstract | Urbanization can increase sheet, rill, gully, and channel erosion. We quantified the sediment budget of the Los Laureles Canyon watershed (LLCW), which is a mixed rural-urbanizing catchment in Northwestern Mexico, using the AnnAGNPS model and field measurements of channel geometry. The model was calibrated with five years of observed runo_ and sediment loads and used to evaluate sediment reduction under a mitigation scenario involving paving roads in hotspots of erosion. Calibrated runo_ and sediment load had a mean-percent-bias of 28.4 and - 8.1, and root-mean-square errors of 85% and 41% of the mean, respectively. Suspended sediment concentration (SSC) collected at di_erent locations during one storm-event correlated with modeled SSC at those locations, which suggests that the model represented spatial variation in sediment production. Simulated gully erosion represents 16%–37% of hillslope sediment production, and 50% of the hillslope sediment load is produced by only 23% of the watershed area. The model identifies priority locations for sediment control measures, and can be used to identify tradeo_s between sediment control and runo_ production. Paving roads in priority areas would reduce total sediment yield by 30%, but may increase peak discharge moderately (1.6%–21%) at the outlet. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | https://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.source | Water 11(5), 1024 (2019) | es_ES |
dc.subject | Soil erosion | es_ES |
dc.subject | Rainfall-runoff | es_ES |
dc.subject | Sediment yield | es_ES |
dc.subject | AnnAGNPS model | es_ES |
dc.subject | Urbanization | es_ES |
dc.subject | Scenario analysis | es_ES |
dc.title | Modelling Runoff and Sediment Loads in a Developing Coastal Watershed of the US-Mexico Border | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.3390/w11051024 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |