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dc.contributor.authorPicone, L. I.
dc.contributor.authorQuaglia, G.
dc.contributor.authorGarcia, F. O.
dc.contributor.authorLaterra, P.
dc.date.accessioned2020-09-18T04:01:13Z
dc.date.available2020-09-18T04:01:13Z
dc.date.issued2003-05-01
dc.identifier.citationPicone, L. I., Quaglia, G., Garcia, F. O., & Laterra, P. (2003). Biological and chemical response of a grassland soil to burning. Journal of Range Management, 56(3), 291-297.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4003821
dc.identifier.doi10.2458/azu_jrm_v56i3_picone
dc.identifier.urihttp://hdl.handle.net/10150/643441
dc.description.abstractChanges in soil nutrient pools and microbial activity due to fire are important for understanding the availability of nutrients to plants. The objective of this study was to evaluate the effect of fire: 1) on size and seasonal dynamics of labile pools of C and N in a short-term after burning; and II) on chemical properties and microbial diversity immediately after fire, in a grassland with Paspalum quadrifarium Lam. Microbial biomass C and N tended to be higher in the burned (433 mg C kg-1 and 37 mg N kg-1) than in the unburned treatment (386 mg C kg-1 and 26 mg N kg-1). Both microbial biomass, decreased at the beginning of the growing season and then recovered at the end of the season. Levels of mineralizable C and N were similar in both treatments; however they showed different patterns of seasonal transformations. At initiation of plant growth, concentration of mineralizable C decreased while amount of mineralizable N increased; but the opposite occurred at the end of the growing season. Increases in microbial biomass coincided with low levels of mineralizable N and high concentrations of mineralizable C, suggesting a higher immobilization at the end of the season. Immediately after burning, organic C and N decreased by 11 and 7%, respectively. Mineral N was almost double, available P increased by 10 mg kg-1; but exchangeable bases, bacterial and actinomycetes population, and urease activity were not affected by burning. Fire can induce immediate changes to the soil; however, long-term studies will be required to evaluate the duration of the effect of fire on soil biological processes and nutrient transformations.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectActinomycetales
dc.subjectPaspalum quadrifarium
dc.subjectsoil bacteria
dc.subjectcarbon
dc.subjectsoil nutrient dynamics
dc.subjectPaspalum
dc.subjectgrasslands
dc.subjectsoil fertility
dc.subjectfire ecology
dc.subjectnitrogen
dc.subjectprescribed burning
dc.subjectphosphorus
dc.subjectbiomass
dc.subjectrange management
dc.subjectseasonal variation
dc.subjectArgentina
dc.subjectPaspalum quadrifarium
dc.subjectfire
dc.subjectmicrobial biomass
dc.subjectsoil nutrients
dc.subjectflooding pampa
dc.titleBiological and chemical response of a grassland soil to burning
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume56
dc.source.issue3
dc.source.beginpage291-297
refterms.dateFOA2020-09-18T04:01:13Z


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