Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/8588
Title: Densely regenerating coolibah ('Eucalyptus coolabah') woodlands are more species-rich than surrounding derived grasslands in floodplains of eastern Australia
Contributor(s): Good, Megan Kate  (author); Price, Jodi N  (author); Clarke, Peter J  (author); Reid, Nick  (author)orcid 
Publication Date: 2011
DOI: 10.1071/BT11079
Handle Link: https://hdl.handle.net/1959.11/8588
Abstract: Woody plant encroachment - the conversion of grasslands to tree- or shrub-dominated ecosystems - occurs in rangelands and savannas worldwide. In eastern Australia, coolibah ('Eucalyptus coolabah' subsp. 'coolabah' Blakely & Jacobs) regenerated densely following floods in the mid 1970s, converting derived grasslands to dense woodlands. We compared soil and groundstorey vegetation attributes of dense coolibah regeneration to adjacent derived grasslands at three grazed sites in the northern riverine plains of New South Wales. Groundstorey species richness and diversity were significantly higher and groundstorey biomass was significantly lower in dense regeneration plots than in derived grassland plots. Soils from dense regeneration had higher C : N and pH, and lower Na than soils from derived grasslands. Although groundstorey species composition differed significantly between derived grasslands and dense regeneration within sites, variation among sites was more pronounced, indicating that site factors influence community composition more than dense regeneration of coolibah. Our findings suggest that, in contrast to other studies of woody plant encroachment, dense regeneration of coolibah does not result in a decrease in plant biodiversity or soil condition.
Publication Type: Journal Article
Source of Publication: Australian Journal of Botany, 59(5), p. 468-479
Publisher: CSIRO Publishing
Place of Publication: Australia
ISSN: 0067-1924
1444-9862
Field of Research (FOR): 060208 Terrestrial Ecology
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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School of Environmental and Rural Science

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