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dc.contributor.authorButler, OM
dc.contributor.authorLewis, T
dc.contributor.authorChen, C
dc.date.accessioned2021-06-14T04:23:31Z
dc.date.available2021-06-14T04:23:31Z
dc.date.issued2021
dc.identifier.issn2571-6255
dc.identifier.doi10.3390/fire4020023
dc.identifier.urihttp://hdl.handle.net/10072/405116
dc.description.abstractImperata cylindrica is a perennial grass that often proliferates in fire-affected forests. Recent fire events have been consistently associated with a lowering of soil nitrogen (N) to phosphorus (P) ratios. Thus, I. cylindrica might have a tendency toward P-limited growth and/or tolerance for low soil N availability that confers a competitive advantage post-fire. We contrasted soil and I. cylindrica chemistry between recently burned and unburned areas in eastern Australia. Imperata cylindrica foliar N:P ratios were 21% lower in burned areas than in unburned areas, reflecting an increase in the uptake of P, but not N, post-fire, consistent with P-limitation. We then grew I. cylindrica seedlings in soils with differing fire-exposure histories and subjected them to various resource amendments (including N and P addition). Survival of I. cylindrica seedlings was not affected by the fire-exposure history of soil, but was reduced by 66% through N-addition. Soil fire history did not significantly affect I. cylindrica growth, but addition of P greatly enhanced I. cylindrica growth, particularly on unburned soils. Our results indicate that the association between I. cylindrica and forest fire regime could be facilitated, in part, by the short-term positive effect of fire on soil phosphorus and the long-term positive effect of fire-exclusion on soil nitrogen, particularly on well-weathered soils.
dc.description.peerreviewedYes
dc.languageen
dc.publisherMDPI AG
dc.relation.ispartofpagefrom23
dc.relation.ispartofissue2
dc.relation.ispartofjournalFire
dc.relation.ispartofvolume4
dc.relation.urihttp://purl.org/au-research/grants/ARC/FT0990547
dc.relation.grantIDFT0990547
dc.relation.fundersARC
dc.subject.fieldofresearchSoil sciences
dc.subject.fieldofresearchForestry sciences
dc.subject.fieldofresearchEcological applications
dc.subject.fieldofresearchEnvironmental management
dc.subject.fieldofresearchcode4106
dc.subject.fieldofresearchcode3007
dc.subject.fieldofresearchcode4102
dc.subject.fieldofresearchcode4104
dc.titleDo soil chemical changes contribute to the dominance of blady grass (Imperata cylindrica) in surface fire-affected forests?
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationButler, OM; Lewis, T; Chen, C, Do soil chemical changes contribute to the dominance of blady grass (Imperata cylindrica) in surface fire-affected forests?, Fire, 2021, 4 (2), pp. 23
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.date.updated2021-06-14T03:11:29Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorButler, Orpheus M.
gro.griffith.authorChen, Chengrong


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