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Circulation Weather types as a key factor on runoff initation and sediment detachment in mediterranean shrublands

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Circulation Weather types as a key factor on runoff initation and sediment detachment in mediterranean shrublands

dc.contributor.author	Rodrigo-Comino, Jesús
dc.contributor.author	Senciales González, José María
dc.contributor.author	Pérez Albarracín, Ana
dc.contributor.author	Bandala, Erick
dc.contributor.author	Escrivà Saneugenio, Francisco
dc.contributor.author	Keesstra, Saskia
dc.contributor.author	Cerdà Bolinches, Artemi
dc.date.accessioned	2023-09-15T09:13:37Z
dc.date.available	2023-09-15T09:13:37Z
dc.date.issued	2023
dc.identifier.citation	Rodrigo-Comino, Jesús Senciales González, José María Pérez Albarracín, Ana Bandala, Erick Escrivà Saneugenio, Francisco Keesstra, Saskia Cerdà Bolinches, Artemi 2023 Circulation Weather types as a key factor on runoff initation and sediment detachment in mediterranean shrublands Cuadernos de Investigación Geográfica 49 1 15
dc.identifier.uri	https://hdl.handle.net/10550/89289
dc.description.abstract	In this research, the circulation weather types (CWTs) associated with individual surface pressure data at different atmospheric heights were used to correlate and quantify soil erosion events collecting soil loss (g m-2), runoff (l m-2) and sediment concentration (g L-1) using field plots and sediment collectors. RepresentativeMediterranean shrubland, located at Sierra de Enguera (Eastern Spain), was used as a case study where 213 rainfallepisodes and related soil loss events were recorded for the 2010-2014 period. Average annual precipitation of 544mm was registered, summarizing a total of 2,720.1 mm for the five years of the research period. A total of 34.4%of the registered precipitation events ranged from 10 to 29.9 mm, 23.5% from 30 to 49.9 mm, and 15.9% from 50to 99.9 mm. The dynamic low-pressure with fronts (DLp+f) CWT was found to generate the highest precipitationamount reaching 60.6% of the total precipitation (105 of the 213 events). Over a third (35%) of the precipitationevents occurred during Eastern CWT, which accounted for 48% of the total precipitation with average values of17.6 mm per event. From the total runoff, 65.6% was related to the combined Eastern and cold drops (CD) CWT.The DLp+f CWT was found to produce 48.9% of sediment mobilization, of which 73.5% of this amount wasgenerated by Eastern CWT. The highest sediment concentration event was found for the southern CWT underthermal low-pressure (TLp) reaching 51.65 g L-1, followed by A (anticyclones) with the Eastern CWT (42.23 g L-1).As a whole, the southern is the CWT generating the highest average sediment concentration (28.66 g L-1), followedby Easter CWT. Our findings suggest that CWTs contribute to foreseeing the periods with the highest soil lossesand may help to prevent them. We discuss the need to analyse the changes in soil erosion rates due to CWT tobetter characterize the soil erosion process and assess the soil erosion rates, improve the current soil erosion modelsand investigate how climate change is changing the role CWT plays in runoff initiation and sediment delivery.
dc.language.iso	eng
dc.relation.ispartof	Cuadernos de Investigación Geográfica, 2023, num. 49, p. 1-15
dc.subject	Precipitacions (Meteorologia)
dc.subject	Sòls Erosió
dc.subject	Ecosistemes
dc.title	Circulation Weather types as a key factor on runoff initation and sediment detachment in mediterranean shrublands
dc.type	journal article
dc.date.updated	2023-09-15T09:13:38Z
dc.identifier.doi	10.18172/cig.5506
dc.identifier.idgrec	161115
dc.rights.accessRights	open access