THE CURRENT STATUS OF DIFFERENT AGE, DIRECT-SEEDED REVEGETATION SITES IN AN AGRICULTURAL LANDSCAPE IN THE BURRUMBEET REGION, VICTORIA, AUSTRALIA
Article first published online: 23 MAR 2011
Copyright © 2011 John Wiley & Sons, Ltd.
Land Degradation & Development
Volume 24, Issue 1, pages 81–89, January/February 2013
How to Cite
Florentine, S. K., Graz, F. P., Ambrose, G. and O'brien, L. (2013), THE CURRENT STATUS OF DIFFERENT AGE, DIRECT-SEEDED REVEGETATION SITES IN AN AGRICULTURAL LANDSCAPE IN THE BURRUMBEET REGION, VICTORIA, AUSTRALIA. Land Degrad. Dev., 24: 81–89. doi: 10.1002/ldr.1110
- Issue published online: 20 JAN 2013
- Article first published online: 23 MAR 2011
- Manuscript Accepted: 15 FEB 2011
- Manuscript Revised: 14 FEB 2011
- Manuscript Received: 27 MAY 2010
- post project appraisal;
Many vegetation restoration works have been undertaken in Australia but only a few of those projects have been assessed for effectiveness. Revisiting earlier restoration attempts and analysing data from them is fundamental to the development of evidence-based prescriptions for future restoration work. Therefore, this study's objectives were to (I) compare plant species composition of different age direct-seeded revegetated sites and (II) determine the effect, if any, of different ages of revegetated sites on the natural recruitment of native plants. The study investigated four fenced restoration sites, dating from 2000, 2001, 2004 and 2005. Results showed that the density of plants surviving varied widely between plots of different ages. The highest density was found in the 2001 plot (2195·.7 stems ha−1), followed by 2000 (1877·8 stems ha−1), 2004 (197·6 stems ha−1) and 2005 (195·4 stems ha−1). An ANOVA showed that the overall amount of seed broadcast does not play a significant (p = 0·437) role in the establishment rate. Overall, Eucalyptus ovata was found to be dominant in the 2000 (794·4 ha−1) and 2001 (971 ha−1) sites. In contrast, Eucalyptus camaldulensis and Eucalyptus viminalis densities were highest in the 2004 (41 ha−1) and 2005 (60·4 ha−1) sites, respectively. PERMANOVA showed highly significant differences in the present plant composition between plots (p < 0·0001), despite similar species mixes used in sowing. Recruitment was not found in any of the sites. The least weed cover and the highest litter cover were found in the 2001 plot. A similar trend was found in the 2000 plot. In contrast, high weed cover and low litter cover were found in the 2004 and 2005 plots. Since one of the major impediments to developing better restoration strategies is the inadequate documentation of past practices, studies such as these may shed some light on how the direct-seeded technique operates in a farm situation. Copyright © 2011 John Wiley & Sons, Ltd.