dc.contributor.author | Butler, OM | |
dc.contributor.author | Lewis, T | |
dc.contributor.author | Chen, C | |
dc.date.accessioned | 2021-06-14T04:23:31Z | |
dc.date.available | 2021-06-14T04:23:31Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 2571-6255 | |
dc.identifier.doi | 10.3390/fire4020023 | |
dc.identifier.uri | http://hdl.handle.net/10072/405116 | |
dc.description.abstract | Imperata 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.peerreviewed | Yes | |
dc.language | en | |
dc.publisher | MDPI AG | |
dc.relation.ispartofpagefrom | 23 | |
dc.relation.ispartofissue | 2 | |
dc.relation.ispartofjournal | Fire | |
dc.relation.ispartofvolume | 4 | |
dc.relation.uri | http://purl.org/au-research/grants/ARC/FT0990547 | |
dc.relation.grantID | FT0990547 | |
dc.relation.funders | ARC | |
dc.subject.fieldofresearch | Soil sciences | |
dc.subject.fieldofresearch | Forestry sciences | |
dc.subject.fieldofresearch | Ecological applications | |
dc.subject.fieldofresearch | Environmental management | |
dc.subject.fieldofresearchcode | 4106 | |
dc.subject.fieldofresearchcode | 3007 | |
dc.subject.fieldofresearchcode | 4102 | |
dc.subject.fieldofresearchcode | 4104 | |
dc.title | Do soil chemical changes contribute to the dominance of blady grass (Imperata cylindrica) in surface fire-affected forests? | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dcterms.bibliographicCitation | Butler, 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.license | https://creativecommons.org/licenses/by/4.0/ | |
dc.date.updated | 2021-06-14T03:11:29Z | |
dc.description.version | Version 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.hasfulltext | Full Text | |
gro.griffith.author | Butler, Orpheus M. | |
gro.griffith.author | Chen, Chengrong | |