000084205 001__ 84205
000084205 005__ 20240109134256.0
000084205 0247_ $$2doi$$a10.1016/j.jenvman.2018.09.104
000084205 0248_ $$2sideral$$a108565
000084205 037__ $$aART-2019-108565
000084205 041__ $$aeng
000084205 100__ $$0(orcid)0000-0001-6566-6944$$aArmas-Herrera, C.M.$$uUniversidad de Zaragoza
000084205 245__ $$aPyrogenic organic matter from palaeo-fires during the Holocene: A case study in a sequence of buried soils at the Central Ebro Basin (NE Spain)
000084205 260__ $$c2019
000084205 5060_ $$aAccess copy available to the general public$$fUnrestricted
000084205 5203_ $$aWe studied the fire record and its environmental consequences during the Holocene in the Central Ebro Basin. This region is very sensitive to environmental changes due to its semiarid conditions, lithological features and a continuous human presence during the past 6000 years. The study area is a 6 m buried sequence of polycyclic soils developed approximately 9500 years ago that is exceptionally well preserved and encompasses four sedimentary units. The content and size distribution of macroscopic charcoal fragments were determined throughout the soil sequence and the analysis of the composition of charcoal, litter and sediments via analytical pyrolysis (Py-GC/MS). The high amount of charcoal fragments recovered in most horizons highlights the fire frequencies since the beginning of the Neolithic, most of which were probably of anthropogenic origin. In some soil horizons where charcoal was not found, we detected a distribution pattern of lipid compounds that could be related to biomass burning. On the other hand, the low number of pyrolysates in the charcoal could be attributed to high-intensity fires. No clear pattern was found in the composition of pyrolysates related to the age of sediments or vegetation type. The most ancient soil (Unit 1) was the richest in charcoal content and contains a higher proportion of larger fragments (>4 mm), which is consistent with the burning of a relatively dense vegetation cover. This buried soil has been preserved in situ, probably due to the accumulation of sedimentary materials because of a high-intensity fire. In addition, the pyrogenic C in this soil has some plant markers that could indicate a low degree of transformation. In Units 2–4, both the amount of charcoals and the proportions of macrofragments >4 mm are lower than those in Unit 1, which coincides with a more open forest and the presence of shrubs and herbs. The preservation of this site is key to continuing with studies that contribute to a better assessment of the consequences of future disturbances, such as landscape transformation and climate change.
000084205 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/CGL2016-76620-R$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2016-78937-R$$9info:eu-repo/grantAgreement/ES/MINECO/HAR2015-65620-P
000084205 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000084205 590__ $$a5.647$$b2019
000084205 591__ $$aENVIRONMENTAL SCIENCES$$b33 / 264 = 0.125$$c2019$$dQ1$$eT1
000084205 592__ $$a1.321$$b2019
000084205 593__ $$aEnvironmental Engineering$$c2019$$dQ1
000084205 593__ $$aWaste Management and Disposal$$c2019$$dQ1
000084205 593__ $$aMedicine (miscellaneous)$$c2019$$dQ1
000084205 593__ $$aManagement, Monitoring, Policy and Law$$c2019$$dQ1
000084205 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000084205 700__ $$aPérez-Lambán, F.
000084205 700__ $$0(orcid)0000-0002-1006-5030$$aBadía-Villas, D.$$uUniversidad de Zaragoza
000084205 700__ $$0(orcid)0000-0003-4067-8222$$aPeña-Monné, J.L.$$uUniversidad de Zaragoza
000084205 700__ $$aGonzález-Pérez, J.A.
000084205 700__ $$0(orcid)0000-0002-4726-819X$$aPicazo Millán, J.V.$$uUniversidad de Zaragoza
000084205 700__ $$aJiménez-Morillo, N.T.
000084205 700__ $$aSampietro-Vattuone, M.M.
000084205 700__ $$0(orcid)0000-0003-4280-3971$$aAlcolea Gracia, M.
000084205 7102_ $$13006$$2430$$aUniversidad de Zaragoza$$bDpto. Geograf. Ordenac.Territ.$$cÁrea Geografía Física
000084205 7102_ $$13000$$2695$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Antigüed.$$cÁrea Prehistoria
000084205 7102_ $$15011$$2240$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Edafología y Quím.Agríco.
000084205 773__ $$g241 (2019), 558-566$$pJ. environ. manag.$$tJournal of environmental management$$x0301-4797
000084205 8564_ $$s2307726$$uhttps://zaguan.unizar.es/record/84205/files/texto_completo.pdf$$yPostprint
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000084205 951__ $$a2024-01-09-13:33:02
000084205 980__ $$aARTICLE